---
_id: '49437'
abstract:
- lang: eng
text: "The phase and TTT diagrams of the Ti-6Al-4V system allow the development
of a new forming process for a more energy- and materialefficient production of
sheet metal parts. This new “TISTRAQ” process is composed of two steps. In terms
of process technology, the first step is comparable to a direct press-hardening
process already well known for steels. In this step, the Ti-6Al-4V sheet material
is resistively heated to a temperature below β-transus Tβ and, after a very short
holding time, simultaneously formed and quenched by use of water cooled tools.
Thereby, the β phase undergoes a martensitic transformation. The second step is
a subsequent short-time annealing, which leads to a hardening of the material.
In this work, a new test rig using resistive heating technique was used in order
to produce\r\ndifferent solution treated and tool quenched (STQ) and subsequently
annealed (STA) states. In this paper, the effects of heating rate, solution treatment
temperature and holding time on microstructure and mechanical properties are addressed.
For the characterisation, tensile testing and scanning electron microscopy were
used. By the systematic variation of applied processing parameters, dominating
effects on microstructure and mechanical properties were evaluated. For example,
the solution treatment temperature was found to have a significant effect on microstructural
features and characteristic strength and strain values. The obtained results reveal
a high potential for future technical applications."
author:
- first_name: Nina
full_name: Pfeffer, Nina
last_name: Pfeffer
- first_name: Maximilian Alexander
full_name: Kaiser, Maximilian Alexander
id: '72351'
last_name: Kaiser
orcid: 0009-0008-1333-3396
- first_name: Thomas
full_name: Meyer, Thomas
last_name: Meyer
- first_name: Mathias
full_name: Göken, Mathias
last_name: Göken
- first_name: Heinz Werner
full_name: Höppel, Heinz Werner
last_name: Höppel
citation:
ama: 'Pfeffer N, Kaiser MA, Meyer T, Göken M, Höppel HW. The new TISTRAQ process:
Solution treatment with rapid quenching and annealing for Ti-6Al-4V sheet metal
part forming - the effect of processing parameters on microstructure and mechanical
properties. In: IOM3. Chapter 14: Forming, Machining & Joining [Version
1; Not Peer Reviewed]. doi:https://doi.org/10.7490/f1000research.1119929.1'
apa: 'Pfeffer, N., Kaiser, M. A., Meyer, T., Göken, M., & Höppel, H. W. (n.d.).
The new TISTRAQ process: Solution treatment with rapid quenching and annealing
for Ti-6Al-4V sheet metal part forming - the effect of processing parameters on
microstructure and mechanical properties. IOM3. Chapter 14: Forming, Machining
& Joining [Version 1; Not Peer Reviewed]. 15th World Conference on Titanium,
Edinburgh. https://doi.org/10.7490/f1000research.1119929.1'
bibtex: '@inproceedings{Pfeffer_Kaiser_Meyer_Göken_Höppel, title={The new TISTRAQ
process: Solution treatment with rapid quenching and annealing for Ti-6Al-4V sheet
metal part forming - the effect of processing parameters on microstructure and
mechanical properties}, DOI={https://doi.org/10.7490/f1000research.1119929.1},
booktitle={IOM3. Chapter 14: Forming, Machining & Joining [version 1; not
peer reviewed]}, author={Pfeffer, Nina and Kaiser, Maximilian Alexander and Meyer,
Thomas and Göken, Mathias and Höppel, Heinz Werner} }'
chicago: 'Pfeffer, Nina, Maximilian Alexander Kaiser, Thomas Meyer, Mathias Göken,
and Heinz Werner Höppel. “The New TISTRAQ Process: Solution Treatment with Rapid
Quenching and Annealing for Ti-6Al-4V Sheet Metal Part Forming - the Effect of
Processing Parameters on Microstructure and Mechanical Properties.” In IOM3.
Chapter 14: Forming, Machining & Joining [Version 1; Not Peer Reviewed],
n.d. https://doi.org/10.7490/f1000research.1119929.1.'
ieee: 'N. Pfeffer, M. A. Kaiser, T. Meyer, M. Göken, and H. W. Höppel, “The new
TISTRAQ process: Solution treatment with rapid quenching and annealing for Ti-6Al-4V
sheet metal part forming - the effect of processing parameters on microstructure
and mechanical properties,” presented at the 15th World Conference on Titanium,
Edinburgh, doi: https://doi.org/10.7490/f1000research.1119929.1.'
mla: 'Pfeffer, Nina, et al. “The New TISTRAQ Process: Solution Treatment with Rapid
Quenching and Annealing for Ti-6Al-4V Sheet Metal Part Forming - the Effect of
Processing Parameters on Microstructure and Mechanical Properties.” IOM3. Chapter
14: Forming, Machining & Joining [Version 1; Not Peer Reviewed], doi:https://doi.org/10.7490/f1000research.1119929.1.'
short: 'N. Pfeffer, M.A. Kaiser, T. Meyer, M. Göken, H.W. Höppel, in: IOM3. Chapter
14: Forming, Machining & Joining [Version 1; Not Peer Reviewed], n.d.'
conference:
end_date: 2023-06-16
location: Edinburgh
name: 15th World Conference on Titanium
start_date: 2023-06-12
date_created: 2023-12-04T11:08:49Z
date_updated: 2025-05-19T11:46:28Z
department:
- _id: '9'
- _id: '321'
- _id: '149'
doi: https://doi.org/10.7490/f1000research.1119929.1
keyword:
- Ti-6Al-4V
- thermomechanical processing
- resistive heating
- quench-forming
- process parameter-microstructure-properties relationship
language:
- iso: eng
publication: 'IOM3. Chapter 14: Forming, Machining & Joining [version 1; not peer
reviewed]'
publication_status: submitted
status: public
title: 'The new TISTRAQ process: Solution treatment with rapid quenching and annealing
for Ti-6Al-4V sheet metal part forming - the effect of processing parameters on
microstructure and mechanical properties'
type: conference
user_id: '72351'
year: '2024'
...
---
_id: '57467'
abstract:
- lang: eng
text: Additive manufacturing of metallic components often results in the
formation of columnar grain structures aligned along the build direction. These
elongated grains can introduce anisotropy, negatively impacting the mechanical
properties of the components. This study aimed to achieve controlled solidification
with a fine-grained microstructure to enhance the mechanical performance of printed
parts. Stainless steel 316L was used as the test material. High-intensity ultrasound
was applied during the direct energy deposition (DED) process to inhibit the formation
of columnar grains. The investigation emphasized the importance of amplitude changes
of the ultrasound wave as the system’s geometry continuously evolves with the
addition of multiple layers and assessed how these changes influence the grain
size and distribution. Initial tests revealed significant amplitude fluctuations
during layer deposition, highlighting the impact of layer deposition on process
uniformity. The mechanical results demonstrated that the application of ultrasound
effectively refined the grain structure, leading to a 15% increase in tensile
strength compared to conventionally additively manufactured samples.
article_number: '1001'
author:
- first_name: Dennis
full_name: Lehnert, Dennis
id: '90491'
last_name: Lehnert
- first_name: Christian
full_name: Bödger, Christian
id: '93904'
last_name: Bödger
- first_name: Philipp
full_name: Pabel, Philipp
id: '67374'
last_name: Pabel
- first_name: Claus
full_name: Scheidemann, Claus
id: '38259'
last_name: Scheidemann
- first_name: Tobias
full_name: Hemsel, Tobias
id: '210'
last_name: Hemsel
- first_name: Stefan
full_name: Gnaase, Stefan
id: '25730'
last_name: Gnaase
- first_name: David
full_name: Kostka, David
last_name: Kostka
- first_name: Thomas
full_name: Tröster, Thomas
id: '553'
last_name: Tröster
citation:
ama: Lehnert D, Bödger C, Pabel P, et al. The Influence of Ultrasonic Irradiation
of a 316L Weld Pool Produced by DED on the Mechanical Properties of the Produced
Component. Crystals. 2024;14(11). doi:10.3390/cryst14111001
apa: Lehnert, D., Bödger, C., Pabel, P., Scheidemann, C., Hemsel, T., Gnaase, S.,
Kostka, D., & Tröster, T. (2024). The Influence of Ultrasonic Irradiation
of a 316L Weld Pool Produced by DED on the Mechanical Properties of the Produced
Component. Crystals, 14(11), Article 1001. https://doi.org/10.3390/cryst14111001
bibtex: '@article{Lehnert_Bödger_Pabel_Scheidemann_Hemsel_Gnaase_Kostka_Tröster_2024,
title={The Influence of Ultrasonic Irradiation of a 316L Weld Pool Produced by
DED on the Mechanical Properties of the Produced Component}, volume={14}, DOI={10.3390/cryst14111001}, number={111001},
journal={Crystals}, publisher={MDPI AG}, author={Lehnert, Dennis and Bödger, Christian
and Pabel, Philipp and Scheidemann, Claus and Hemsel, Tobias and Gnaase, Stefan
and Kostka, David and Tröster, Thomas}, year={2024} }'
chicago: Lehnert, Dennis, Christian Bödger, Philipp Pabel, Claus Scheidemann, Tobias
Hemsel, Stefan Gnaase, David Kostka, and Thomas Tröster. “The Influence of Ultrasonic
Irradiation of a 316L Weld Pool Produced by DED on the Mechanical Properties of
the Produced Component.” Crystals 14, no. 11 (2024). https://doi.org/10.3390/cryst14111001.
ieee: 'D. Lehnert et al., “The Influence of Ultrasonic Irradiation of a 316L
Weld Pool Produced by DED on the Mechanical Properties of the Produced Component,”
Crystals, vol. 14, no. 11, Art. no. 1001, 2024, doi: 10.3390/cryst14111001.'
mla: Lehnert, Dennis, et al. “The Influence of Ultrasonic Irradiation of a 316L
Weld Pool Produced by DED on the Mechanical Properties of the Produced Component.”
Crystals, vol. 14, no. 11, 1001, MDPI AG, 2024, doi:10.3390/cryst14111001.
short: D. Lehnert, C. Bödger, P. Pabel, C. Scheidemann, T. Hemsel, S. Gnaase, D.
Kostka, T. Tröster, Crystals 14 (2024).
date_created: 2024-11-28T08:45:06Z
date_updated: 2026-02-23T08:07:37Z
ddc:
- '670'
department:
- _id: '149'
- _id: '321'
- _id: '9'
doi: 10.3390/cryst14111001
file:
- access_level: closed
content_type: application/pdf
creator: dlehnert
date_created: 2024-11-28T08:52:48Z
date_updated: 2024-11-28T08:52:48Z
file_id: '57470'
file_name: crystals-14-01001-v2 (4).pdf
file_size: 5779744
relation: main_file
success: 1
file_date_updated: 2024-11-28T08:52:48Z
has_accepted_license: '1'
intvolume: ' 14'
issue: '11'
language:
- iso: eng
publication: Crystals
publication_identifier:
issn:
- 2073-4352
publication_status: published
publisher: MDPI AG
quality_controlled: '1'
status: public
title: The Influence of Ultrasonic Irradiation of a 316L Weld Pool Produced by DED
on the Mechanical Properties of the Produced Component
type: journal_article
user_id: '93904'
volume: 14
year: '2024'
...
---
_id: '55638'
abstract:
- lang: eng
text: Abstract. Traditionally, joints are cylindrical and rotationally symmetric.
In the present study, non-rotationally symmetric joints are used for joining steel
and Glass mat-reinforced thermoplastic sheets (GMT). In addition, the study also
analyzes the impact of non-rotational symmetric joint rotation on the load-bearing
capacity. Single lap joint specimens were fabricated using the In-Mold assembly
technique for joining steel sheets with GMT. Tensile shear tests were performed
on different orientations of the joint geometry, and it was observed that changing
the joint orientation influences the load-bearing capacity. The joints are constitutively
modeled using beam elements and the influence of joint rotation on load distribution
is examined through a static simulation study.
author:
- first_name: Deekshith Reddy
full_name: Devulapally, Deekshith Reddy
id: '76837'
last_name: Devulapally
- first_name: Sven
full_name: Martin, Sven
id: '38177'
last_name: Martin
- first_name: Thomas
full_name: Tröster, Thomas
id: '553'
last_name: Tröster
citation:
ama: 'Devulapally DR, Martin S, Tröster T. Non-rotationally symmetric joints – Mechanisms
and load bearing capacity. In: Materials Research Proceedings. Materials
Research Forum LLC; 2024. doi:10.21741/9781644903131-183'
apa: Devulapally, D. R., Martin, S., & Tröster, T. (2024). Non-rotationally
symmetric joints – Mechanisms and load bearing capacity. Materials Research
Proceedings. https://doi.org/10.21741/9781644903131-183
bibtex: '@inproceedings{Devulapally_Martin_Tröster_2024, title={Non-rotationally
symmetric joints – Mechanisms and load bearing capacity}, DOI={10.21741/9781644903131-183},
booktitle={Materials Research Proceedings}, publisher={Materials Research Forum
LLC}, author={Devulapally, Deekshith Reddy and Martin, Sven and Tröster, Thomas},
year={2024} }'
chicago: Devulapally, Deekshith Reddy, Sven Martin, and Thomas Tröster. “Non-Rotationally
Symmetric Joints – Mechanisms and Load Bearing Capacity.” In Materials Research
Proceedings. Materials Research Forum LLC, 2024. https://doi.org/10.21741/9781644903131-183.
ieee: 'D. R. Devulapally, S. Martin, and T. Tröster, “Non-rotationally symmetric
joints – Mechanisms and load bearing capacity,” 2024, doi: 10.21741/9781644903131-183.'
mla: Devulapally, Deekshith Reddy, et al. “Non-Rotationally Symmetric Joints – Mechanisms
and Load Bearing Capacity.” Materials Research Proceedings, Materials Research
Forum LLC, 2024, doi:10.21741/9781644903131-183.
short: 'D.R. Devulapally, S. Martin, T. Tröster, in: Materials Research Proceedings,
Materials Research Forum LLC, 2024.'
date_created: 2024-08-19T08:29:22Z
date_updated: 2026-02-27T10:50:30Z
department:
- _id: '149'
- _id: '321'
- _id: '9'
doi: 10.21741/9781644903131-183
language:
- iso: eng
main_file_link:
- open_access: '1'
oa: '1'
project:
- _id: '140'
name: 'TRR 285 – B01: TRR 285 - Subproject B01'
- _id: '52'
name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
- _id: '130'
name: 'TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen
Prozessketten'
publication: Materials Research Proceedings
publication_identifier:
issn:
- 2474-395X
publication_status: published
publisher: Materials Research Forum LLC
status: public
title: Non-rotationally symmetric joints – Mechanisms and load bearing capacity
type: conference
user_id: '76837'
year: '2024'
...
---
_id: '58981'
abstract:
- lang: eng
text: Die Auslegung von gefügten Bauteilen ermöglicht die Produktion von Strukturbauteilen,
welche teils aus sehr vielen Einzelteilen bestehen und durch eine hohe Anzahl
von Fügepunkten verbunden sind. Die Eigenschaften der Einzelteile und die Prozessgrößen
in der Fertigung unterliegen Schwankungen, die bei der Auslegung berücksichtigt
werden müssen. Um diese Bauteile stets nach der Spezifikation zu liefern, werden
die Prozesse gewöhnlich über die gesamte Prozesskette überwacht und das Bauteil
überdimensioniert. Treten unvorhersehbare Störungen in der Prozesskette auf, kann
das Bauteil nicht mehr weiter produziert werden. Entweder muss die Störung im
Prozess behoben werden, was nicht immer möglich ist und die schon teils produzierte
Charge muss vernichtet werden, oder der Teil der Prozesskette nach der Störung
muss angepasst werden. Dies kann z.B. durch eine Änderungskonstruktion, wie der
Anpassung der Fügepunktpositionen und der -anzahl, geschehen. In dieser Dissertation
wurde eine Auslegungsmethode zur strukturellen elastischen Auslegung punktgefügter
Bauteile entwickelt, mit der eine Anpassungskonstruktion, z.B. auf solche Störungen,
möglich ist. Diese Methode basiert auf der Ausnutzung des Einflusses von geometrischen
Bauteilgrößen, wie z.B. der Bauteildicke und der Fügepunktpositionierung, von
veränderten Fügepunkteigenschaften sowie dem Verständnis zwischen Prozessgrößen
und den erzeugten Fügepunkteigenschaften.
- lang: eng
text: The design of joined components enables the production of structural components,
which consist of many individual parts and are combined by a large number of joining
elements. Since the properties of the individual parts and the process parameters
in manufacturing can scatter, the deviations must be considered in the design.
To always deliver these components according to specification, the processes are
usually monitored over the entire process chain and the component is over dimensioned.
If unforeseeable disruptions occur in the process chain, the component can no
longer be produced. Either the malfunction in the process must be rectified, which
is not always possible, and the batch that has already been partially produced
must be destroyed, or the part of the process chain after the malfunction needs
to be adjusted. This can be done, for example, by changing the design, such as
adjusting the joints positions and number. In this PhD thesis, a design method
for structural elastic designing of point-joined components was developed. With
that method a revised design can be defined, e.g. in order to meet unforeseeable
disruptions in the process chain. This method is based on the utilization of the
influence of geometric component parameters, such as component thickness and joint
positioning, on changed joint properties as well as on the understanding between
process parameters and the manufactured joint properties.
author:
- first_name: Sven
full_name: Martin, Sven
id: '38177'
last_name: Martin
citation:
ama: Martin S. Holistische Methode zur elastischen Auslegung von geclinchten
Bauteilen. LibreCat University; 2024. doi:10.17619/UNIPB/1-2120
apa: Martin, S. (2024). Holistische Methode zur elastischen Auslegung von geclinchten
Bauteilen. LibreCat University. https://doi.org/10.17619/UNIPB/1-2120
bibtex: '@book{Martin_2024, place={Paderborn}, title={Holistische Methode zur elastischen
Auslegung von geclinchten Bauteilen}, DOI={10.17619/UNIPB/1-2120},
publisher={LibreCat University}, author={Martin, Sven}, year={2024} }'
chicago: 'Martin, Sven. Holistische Methode zur elastischen Auslegung von geclinchten
Bauteilen. Paderborn: LibreCat University, 2024. https://doi.org/10.17619/UNIPB/1-2120.'
ieee: 'S. Martin, Holistische Methode zur elastischen Auslegung von geclinchten
Bauteilen. Paderborn: LibreCat University, 2024.'
mla: Martin, Sven. Holistische Methode zur elastischen Auslegung von geclinchten
Bauteilen. LibreCat University, 2024, doi:10.17619/UNIPB/1-2120.
short: S. Martin, Holistische Methode zur elastischen Auslegung von geclinchten
Bauteilen, LibreCat University, Paderborn, 2024.
date_created: 2025-03-13T09:28:13Z
date_updated: 2025-03-13T09:36:38Z
department:
- _id: '9'
- _id: '321'
- _id: '149'
doi: 10.17619/UNIPB/1-2120
extern: '1'
language:
- iso: ger
page: '153'
place: Paderborn
publication_status: published
publisher: LibreCat University
status: public
supervisor:
- first_name: Thomas
full_name: Tröster, Thomas
id: '553'
last_name: Tröster
- first_name: Alexander
full_name: Brosius, Alexander
last_name: Brosius
title: Holistische Methode zur elastischen Auslegung von geclinchten Bauteilen
type: dissertation
user_id: '71335'
year: '2024'
...
---
_id: '57202'
author:
- first_name: Moritz
full_name: Ostermann, Moritz
id: '44763'
last_name: Ostermann
orcid: https://orcid.org/0000-0003-1146-0443
- first_name: Thorsten
full_name: Marten, Thorsten
id: '338'
last_name: Marten
orcid: 0009-0001-6433-7839
- first_name: Thomas
full_name: Tröster, Thomas
id: '553'
last_name: Tröster
citation:
ama: 'Ostermann M, Marten T, Tröster T. Prospective Life Cycle Assessment of Lightweight
Structures in Vehicles for On-Demand Mobility Systems. In: 16th Biennial International
Conference on EcoBalance. ; 2024.'
apa: Ostermann, M., Marten, T., & Tröster, T. (2024). Prospective Life Cycle
Assessment of Lightweight Structures in Vehicles for On-Demand Mobility Systems.
16th Biennial International Conference on EcoBalance. 16th Biennial International
Conference on EcoBalance, Sendai, Japan.
bibtex: '@inproceedings{Ostermann_Marten_Tröster_2024, place={Sendai, Japan}, title={Prospective
Life Cycle Assessment of Lightweight Structures in Vehicles for On-Demand Mobility
Systems}, booktitle={16th Biennial International Conference on EcoBalance}, author={Ostermann,
Moritz and Marten, Thorsten and Tröster, Thomas}, year={2024} }'
chicago: Ostermann, Moritz, Thorsten Marten, and Thomas Tröster. “Prospective Life
Cycle Assessment of Lightweight Structures in Vehicles for On-Demand Mobility
Systems.” In 16th Biennial International Conference on EcoBalance. Sendai,
Japan, 2024.
ieee: M. Ostermann, T. Marten, and T. Tröster, “Prospective Life Cycle Assessment
of Lightweight Structures in Vehicles for On-Demand Mobility Systems,” presented
at the 16th Biennial International Conference on EcoBalance, Sendai, Japan, 2024.
mla: Ostermann, Moritz, et al. “Prospective Life Cycle Assessment of Lightweight
Structures in Vehicles for On-Demand Mobility Systems.” 16th Biennial International
Conference on EcoBalance, 2024.
short: 'M. Ostermann, T. Marten, T. Tröster, in: 16th Biennial International Conference
on EcoBalance, Sendai, Japan, 2024.'
conference:
end_date: 2024-11-07
location: Sendai, Japan
name: 16th Biennial International Conference on EcoBalance
start_date: 2024-11-03
date_created: 2024-11-18T13:25:52Z
date_updated: 2025-03-13T09:24:24Z
department:
- _id: '9'
- _id: '321'
- _id: '149'
keyword:
- Life Cycle Sustainability Assessment
- Prospective Life Cycle Assessment
- Life Cycle Engineering
- On-Demand Mobility
- Mobility Services
language:
- iso: eng
place: Sendai, Japan
publication: 16th Biennial International Conference on EcoBalance
quality_controlled: '1'
status: public
title: Prospective Life Cycle Assessment of Lightweight Structures in Vehicles for
On-Demand Mobility Systems
type: conference_abstract
user_id: '44763'
year: '2024'
...
---
_id: '57537'
author:
- first_name: Moritz
full_name: Ostermann, Moritz
id: '44763'
last_name: Ostermann
orcid: https://orcid.org/0000-0003-1146-0443
- first_name: Thorsten
full_name: Marten, Thorsten
id: '338'
last_name: Marten
orcid: 0009-0001-6433-7839
- first_name: Thomas
full_name: Tröster, Thomas
id: '553'
last_name: Tröster
citation:
ama: 'Ostermann M, Marten T, Tröster T. Scenario-based life cycle assessment of
vehicle lightweight structures. In: Sustainability in Product and Production
Engineering. Automotive Circle; 2024.'
apa: Ostermann, M., Marten, T., & Tröster, T. (2024). Scenario-based life cycle
assessment of vehicle lightweight structures. Sustainability in Product and
Production Engineering. Sustainability in Product and Production Engineering,
Bad Nauheim.
bibtex: '@inproceedings{Ostermann_Marten_Tröster_2024, place={Bad Nauheim}, title={Scenario-based
life cycle assessment of vehicle lightweight structures}, booktitle={Sustainability
in Product and Production Engineering}, publisher={Automotive Circle}, author={Ostermann,
Moritz and Marten, Thorsten and Tröster, Thomas}, year={2024} }'
chicago: 'Ostermann, Moritz, Thorsten Marten, and Thomas Tröster. “Scenario-Based
Life Cycle Assessment of Vehicle Lightweight Structures.” In Sustainability
in Product and Production Engineering. Bad Nauheim: Automotive Circle, 2024.'
ieee: M. Ostermann, T. Marten, and T. Tröster, “Scenario-based life cycle assessment
of vehicle lightweight structures,” presented at the Sustainability in Product
and Production Engineering, Bad Nauheim, 2024.
mla: Ostermann, Moritz, et al. “Scenario-Based Life Cycle Assessment of Vehicle
Lightweight Structures.” Sustainability in Product and Production Engineering,
Automotive Circle, 2024.
short: 'M. Ostermann, T. Marten, T. Tröster, in: Sustainability in Product and Production
Engineering, Automotive Circle, Bad Nauheim, 2024.'
conference:
end_date: 2024-11-27
location: Bad Nauheim
name: Sustainability in Product and Production Engineering
start_date: 2024-11-26
date_created: 2024-12-02T10:17:58Z
date_updated: 2025-03-13T09:25:33Z
department:
- _id: '9'
- _id: '321'
- _id: '149'
language:
- iso: eng
place: Bad Nauheim
publication: Sustainability in Product and Production Engineering
publisher: Automotive Circle
status: public
title: Scenario-based life cycle assessment of vehicle lightweight structures
type: conference_abstract
user_id: '44763'
year: '2024'
...
---
_id: '58381'
article_number: '120948'
author:
- first_name: Keenatampalle
full_name: Suresh, Keenatampalle
last_name: Suresh
- first_name: C.R.
full_name: Kesavulu, C.R.
last_name: Kesavulu
- first_name: Deviprasad
full_name: Chalicheemalapalli Jayasankar, Deviprasad
id: '49504'
last_name: Chalicheemalapalli Jayasankar
orcid: https://orcid.org/ 0000-0002-3446-2444
- first_name: Wisanu
full_name: Pecharapa, Wisanu
last_name: Pecharapa
- first_name: Upendra Kumar
full_name: Kagola, Upendra Kumar
last_name: Kagola
- first_name: Thomas
full_name: Tröster, Thomas
id: '553'
last_name: Tröster
- first_name: C.K.
full_name: Jayasankar, C.K.
last_name: Jayasankar
citation:
ama: Suresh K, Kesavulu CR, Chalicheemalapalli Jayasankar D, et al. Stokes and anti-Stokes
emission characteristics of Er3+/Yb3+ co-doped zinc tellurite glasses under 377
and 1550 nm excitations for solar energy conversion application. Journal of
Luminescence. 2024;277. doi:10.1016/j.jlumin.2024.120948
apa: Suresh, K., Kesavulu, C. R., Chalicheemalapalli Jayasankar, D., Pecharapa,
W., Kagola, U. K., Tröster, T., & Jayasankar, C. K. (2024). Stokes and anti-Stokes
emission characteristics of Er3+/Yb3+ co-doped zinc tellurite glasses under 377
and 1550 nm excitations for solar energy conversion application. Journal of
Luminescence, 277, Article 120948. https://doi.org/10.1016/j.jlumin.2024.120948
bibtex: '@article{Suresh_Kesavulu_Chalicheemalapalli Jayasankar_Pecharapa_Kagola_Tröster_Jayasankar_2024,
title={Stokes and anti-Stokes emission characteristics of Er3+/Yb3+ co-doped zinc
tellurite glasses under 377 and 1550 nm excitations for solar energy conversion
application}, volume={277}, DOI={10.1016/j.jlumin.2024.120948},
number={120948}, journal={Journal of Luminescence}, publisher={Elsevier BV}, author={Suresh,
Keenatampalle and Kesavulu, C.R. and Chalicheemalapalli Jayasankar, Deviprasad
and Pecharapa, Wisanu and Kagola, Upendra Kumar and Tröster, Thomas and Jayasankar,
C.K.}, year={2024} }'
chicago: Suresh, Keenatampalle, C.R. Kesavulu, Deviprasad Chalicheemalapalli Jayasankar,
Wisanu Pecharapa, Upendra Kumar Kagola, Thomas Tröster, and C.K. Jayasankar. “Stokes
and Anti-Stokes Emission Characteristics of Er3+/Yb3+ Co-Doped Zinc Tellurite
Glasses under 377 and 1550 Nm Excitations for Solar Energy Conversion Application.”
Journal of Luminescence 277 (2024). https://doi.org/10.1016/j.jlumin.2024.120948.
ieee: 'K. Suresh et al., “Stokes and anti-Stokes emission characteristics
of Er3+/Yb3+ co-doped zinc tellurite glasses under 377 and 1550 nm excitations
for solar energy conversion application,” Journal of Luminescence, vol.
277, Art. no. 120948, 2024, doi: 10.1016/j.jlumin.2024.120948.'
mla: Suresh, Keenatampalle, et al. “Stokes and Anti-Stokes Emission Characteristics
of Er3+/Yb3+ Co-Doped Zinc Tellurite Glasses under 377 and 1550 Nm Excitations
for Solar Energy Conversion Application.” Journal of Luminescence, vol.
277, 120948, Elsevier BV, 2024, doi:10.1016/j.jlumin.2024.120948.
short: K. Suresh, C.R. Kesavulu, D. Chalicheemalapalli Jayasankar, W. Pecharapa,
U.K. Kagola, T. Tröster, C.K. Jayasankar, Journal of Luminescence 277 (2024).
date_created: 2025-01-28T08:36:00Z
date_updated: 2025-03-25T14:05:08Z
department:
- _id: '149'
- _id: '321'
- _id: '9'
doi: 10.1016/j.jlumin.2024.120948
intvolume: ' 277'
language:
- iso: eng
publication: Journal of Luminescence
publication_identifier:
issn:
- 0022-2313
publication_status: published
publisher: Elsevier BV
status: public
title: Stokes and anti-Stokes emission characteristics of Er3+/Yb3+ co-doped zinc
tellurite glasses under 377 and 1550 nm excitations for solar energy conversion
application
type: journal_article
user_id: '49504'
volume: 277
year: '2024'
...
---
_id: '58380'
article_number: '100797'
author:
- first_name: C.R.
full_name: Kesavulu, C.R.
last_name: Kesavulu
- first_name: Ch.
full_name: Basavapoornima, Ch.
last_name: Basavapoornima
- first_name: Pikkili
full_name: Ramprasad, Pikkili
last_name: Ramprasad
- first_name: Deviprasad
full_name: Chalicheemalapalli Jayasankar, Deviprasad
id: '49504'
last_name: Chalicheemalapalli Jayasankar
orcid: https://orcid.org/ 0000-0002-3446-2444
- first_name: Shobha Rani
full_name: Depuru, Shobha Rani
last_name: Depuru
- first_name: C.K.
full_name: Jayasankar, C.K.
last_name: Jayasankar
citation:
ama: Kesavulu CR, Basavapoornima Ch, Ramprasad P, Chalicheemalapalli Jayasankar
D, Depuru SR, Jayasankar CK. Optical and photoluminescence characteristics of
Pr3+-doped P2O5 +BaO+La2O3 glasses. Chemical Physics Impact. 2024;10. doi:10.1016/j.chphi.2024.100797
apa: Kesavulu, C. R., Basavapoornima, Ch., Ramprasad, P., Chalicheemalapalli Jayasankar,
D., Depuru, S. R., & Jayasankar, C. K. (2024). Optical and photoluminescence
characteristics of Pr3+-doped P2O5 +BaO+La2O3 glasses. Chemical Physics Impact,
10, Article 100797. https://doi.org/10.1016/j.chphi.2024.100797
bibtex: '@article{Kesavulu_Basavapoornima_Ramprasad_Chalicheemalapalli Jayasankar_Depuru_Jayasankar_2024,
title={Optical and photoluminescence characteristics of Pr3+-doped P2O5 +BaO+La2O3
glasses}, volume={10}, DOI={10.1016/j.chphi.2024.100797},
number={100797}, journal={Chemical Physics Impact}, publisher={Elsevier BV}, author={Kesavulu,
C.R. and Basavapoornima, Ch. and Ramprasad, Pikkili and Chalicheemalapalli Jayasankar,
Deviprasad and Depuru, Shobha Rani and Jayasankar, C.K.}, year={2024} }'
chicago: Kesavulu, C.R., Ch. Basavapoornima, Pikkili Ramprasad, Deviprasad Chalicheemalapalli
Jayasankar, Shobha Rani Depuru, and C.K. Jayasankar. “Optical and Photoluminescence
Characteristics of Pr3+-Doped P2O5 +BaO+La2O3 Glasses.” Chemical Physics Impact
10 (2024). https://doi.org/10.1016/j.chphi.2024.100797.
ieee: 'C. R. Kesavulu, Ch. Basavapoornima, P. Ramprasad, D. Chalicheemalapalli Jayasankar,
S. R. Depuru, and C. K. Jayasankar, “Optical and photoluminescence characteristics
of Pr3+-doped P2O5 +BaO+La2O3 glasses,” Chemical Physics Impact, vol. 10,
Art. no. 100797, 2024, doi: 10.1016/j.chphi.2024.100797.'
mla: Kesavulu, C. R., et al. “Optical and Photoluminescence Characteristics of Pr3+-Doped
P2O5 +BaO+La2O3 Glasses.” Chemical Physics Impact, vol. 10, 100797, Elsevier
BV, 2024, doi:10.1016/j.chphi.2024.100797.
short: C.R. Kesavulu, Ch. Basavapoornima, P. Ramprasad, D. Chalicheemalapalli Jayasankar,
S.R. Depuru, C.K. Jayasankar, Chemical Physics Impact 10 (2024).
date_created: 2025-01-28T08:35:08Z
date_updated: 2025-03-25T14:05:37Z
department:
- _id: '149'
- _id: '321'
- _id: '9'
doi: 10.1016/j.chphi.2024.100797
intvolume: ' 10'
language:
- iso: eng
publication: Chemical Physics Impact
publication_identifier:
issn:
- 2667-0224
publication_status: published
publisher: Elsevier BV
status: public
title: Optical and photoluminescence characteristics of Pr3+-doped P2O5 +BaO+La2O3
glasses
type: journal_article
user_id: '49504'
volume: 10
year: '2024'
...
---
_id: '56654'
abstract:
- lang: eng
text: Residual stresses in directly joined laminates made of steel and carbon fiber
reinforced epoxy resin reduce the interface and bond strength and thus have to
be taken into account for the strength analysis of structural components. For
a holistic description of residual stresses, a thermo-chemo-mechanical constitutive
model is introduced in the present work and presented for the multi-scale analysis
of residual stress patterns. In this context, the analysis of representative unit
cells with regular and stochastic distribution of fibers gives information about
the associated deformation and stress fields. Dehomogenization at macroscopically
highly stressed regions, characterized by local stress peaks, reveals the effect
of gradient deformation in the microstructure. Another aspect of this work is
the development of FFT-based Galerkin methods, which allows an evaluation of the
effect of defect densities, heterogeneities and morphologies on the applicability
of the incremental hole drilling method. It could be demonstrated that the incremental
hole drilling method is particularly sensitive to defects running along the surface.
- lang: ger
text: Eigenspannungen in direktgefügten Werkstoffverbunden aus Stahl und kohlenstofffaserverstärktem
Epoxidharz reduzieren die Grenzschicht- und Verbundfestigkeit und sind somit für
die Festigkeitsbeurteilung von Strukturen zwingend zu berücksichtigen. Zur ganzheitlichen
Beschreibung von Eigenspannungen wird in der vorliegenden Arbeit ein thermo-chemo-mechanisches
Konstitutivmodell für die skalenübergreifende Bewertung von Eigenspannungsverteilungen
vorgestellt. Die Analyse von repräsentativen Einheitszellen mit regulärer und
stochastischer Verteilung von Fasern liefert in diesem Zusammenhang Informationen
über die zugehörigen Deformations- und Spannungsfelder. Die Dehomogenisierung
an makroskopisch hochbelasteten Bereichen, die durch lokale Spannungsüberhöhungen
gekennzeichnet sind, zeigt die Auswirkung der gradientenbehafteten Deformation
in der Mikrostruktur. Ein weiterer Aspekt dieser Arbeit ist die Entwicklung FFT-basierter
Galerkin-Methoden, die es erstmalig erlauben, eine Bewertung der Auswirkung von
Defektdichte, Heterogenität und Morphologie auf die Anwendbarkeit der inkrementellen
Bohrlochmethode vorzunehmen. Es konnte nachgewiesen werden, dass die inkrementelle
Bohrlochmethode insbesondere auf an der Oberfläche verlaufende Defekte sensitiv
reagiert.
author:
- first_name: Steffen Rainer
full_name: Tinkloh, Steffen Rainer
last_name: Tinkloh
citation:
ama: Tinkloh SR. Mikromechanische Analyse von Eigenspannungen in direktgefügten
kohlenstofffaserverstärkten Kunststoff-Stahl-Schichtverbunden. BoD - Books
on Demand; 2024.
apa: Tinkloh, S. R. (2024). Mikromechanische Analyse von Eigenspannungen in direktgefügten
kohlenstofffaserverstärkten Kunststoff-Stahl-Schichtverbunden. BoD - Books
on Demand.
bibtex: '@book{Tinkloh_2024, title={Mikromechanische Analyse von Eigenspannungen
in direktgefügten kohlenstofffaserverstärkten Kunststoff-Stahl-Schichtverbunden},
publisher={BoD - Books on Demand}, author={Tinkloh, Steffen Rainer}, year={2024}
}'
chicago: Tinkloh, Steffen Rainer. Mikromechanische Analyse von Eigenspannungen
in direktgefügten kohlenstofffaserverstärkten Kunststoff-Stahl-Schichtverbunden.
BoD - Books on Demand, 2024.
ieee: S. R. Tinkloh, Mikromechanische Analyse von Eigenspannungen in direktgefügten
kohlenstofffaserverstärkten Kunststoff-Stahl-Schichtverbunden. BoD - Books
on Demand, 2024.
mla: Tinkloh, Steffen Rainer. Mikromechanische Analyse von Eigenspannungen in
direktgefügten kohlenstofffaserverstärkten Kunststoff-Stahl-Schichtverbunden.
BoD - Books on Demand, 2024.
short: S.R. Tinkloh, Mikromechanische Analyse von Eigenspannungen in direktgefügten
kohlenstofffaserverstärkten Kunststoff-Stahl-Schichtverbunden, BoD - Books on
Demand, 2024.
date_created: 2024-10-17T07:56:02Z
date_updated: 2026-03-19T10:57:29Z
department:
- _id: '9'
- _id: '149'
- _id: '321'
extern: '1'
keyword:
- Hybride Werkstoffverbunde
- Eigenspanungen
- FFT-basierte Galerkin-Methode
- Mikromechanik
- Finite-Elemente-Methode
language:
- iso: ger
page: '168'
project:
- _id: '52'
name: Computing Resources Provided by the Paderborn Center for Parallel Computing
publication_identifier:
isbn:
- '9783757887650'
publication_status: published
publisher: BoD - Books on Demand
status: public
supervisor:
- first_name: Thomas
full_name: Tröster, Thomas
last_name: Tröster
- first_name: Thomas
full_name: Niendorf, Thomas
last_name: Niendorf
title: Mikromechanische Analyse von Eigenspannungen in direktgefügten kohlenstofffaserverstärkten
Kunststoff-Stahl-Schichtverbunden
type: dissertation
user_id: '71335'
year: '2024'
...
---
_id: '57699'
abstract:
- lang: eng
text: The optimization of process parameters in powder Directed Energy Deposition
(DED) is essential for achieving consistent, high-quality bead geometries, which
directly influence the performance and structural integrity of fabricated components.
As a subset of additive manufacturing (AM), the DED process, also referred to
as laser metal deposition (LMD), enables precise, layer-by-layer material deposition,
making it highly suitable for complex geometries and part repair applications.
Critical parameters, such as the laser power, feed rate, powder mass flow, and
substrate temperature govern the deposition process, impacting the bead height,
width, contact angle, and dilution. Inconsistent control over these variables
can lead to defects, such as poor bonding, dimensional inaccuracies, and material
weaknesses, ultimately compromising the final product. This paper investigates
the effects of various process parameters, specifically the substrate temperature,
on bead track geometry in DED processes for stainless steel (1.4404). A specialized
experimental setup, integrated within a DED machine, facilitates the controlled
thermal conditioning of sample sheets. Using Design of Experiments (DoE) methods,
individual bead marks are generated and analyzed to assess geometric characteristics.
Regression models, including both linear and quadratic approaches, are constructed
to predict machine parameters for achieving the desired bead geometry at different
substrate temperatures. Validation experiments confirm the accuracy and reliability
of the models, particularly in predicting the bead height, bead width, and contact
angle across a broad range of substrate temperatures. However, the models demonstrated
limitations in accurately predicting dilution, indicating the need for further
refinement. Despite some deviations in measured values, successful fabrication
is achieved, demonstrating robust bonding between the bead and substrate. The
developed models offer insights into optimizing DED process parameters to achieve
desired bead characteristics, advancing the precision and reliability of additive
manufacturing technology. Future work will focus on refining the regression models
to improve predictions, particularly for dilution, and further investigate non-linear
interactions between process variables.
article_number: '1353'
article_type: original
author:
- first_name: Deviprasad
full_name: Chalicheemalapalli Jayasankar, Deviprasad
id: '49504'
last_name: Chalicheemalapalli Jayasankar
orcid: https://orcid.org/ 0000-0002-3446-2444
- first_name: Stefan
full_name: Gnaase, Stefan
id: '25730'
last_name: Gnaase
- first_name: Dennis
full_name: Lehnert, Dennis
id: '90491'
last_name: Lehnert
- first_name: Artur
full_name: Walter, Artur
last_name: Walter
- first_name: Robin
full_name: Rohling, Robin
last_name: Rohling
- first_name: Thomas
full_name: Tröster, Thomas
id: '553'
last_name: Tröster
citation:
ama: 'Chalicheemalapalli Jayasankar D, Gnaase S, Lehnert D, Walter A, Rohling R,
Tröster T. Effect of Substrate Temperature on Bead Track Geometry of 316L in Directed
Energy Deposition: Investigation and Regression Modeling. Metals. 2024;14(12).
doi:10.3390/met14121353'
apa: 'Chalicheemalapalli Jayasankar, D., Gnaase, S., Lehnert, D., Walter, A., Rohling,
R., & Tröster, T. (2024). Effect of Substrate Temperature on Bead Track Geometry
of 316L in Directed Energy Deposition: Investigation and Regression Modeling.
Metals, 14(12), Article 1353. https://doi.org/10.3390/met14121353'
bibtex: '@article{Chalicheemalapalli Jayasankar_Gnaase_Lehnert_Walter_Rohling_Tröster_2024,
title={Effect of Substrate Temperature on Bead Track Geometry of 316L in Directed
Energy Deposition: Investigation and Regression Modeling}, volume={14}, DOI={10.3390/met14121353}, number={121353},
journal={Metals}, publisher={MDPI AG}, author={Chalicheemalapalli Jayasankar,
Deviprasad and Gnaase, Stefan and Lehnert, Dennis and Walter, Artur and Rohling,
Robin and Tröster, Thomas}, year={2024} }'
chicago: 'Chalicheemalapalli Jayasankar, Deviprasad, Stefan Gnaase, Dennis Lehnert,
Artur Walter, Robin Rohling, and Thomas Tröster. “Effect of Substrate Temperature
on Bead Track Geometry of 316L in Directed Energy Deposition: Investigation and
Regression Modeling.” Metals 14, no. 12 (2024). https://doi.org/10.3390/met14121353.'
ieee: 'D. Chalicheemalapalli Jayasankar, S. Gnaase, D. Lehnert, A. Walter, R. Rohling,
and T. Tröster, “Effect of Substrate Temperature on Bead Track Geometry of 316L
in Directed Energy Deposition: Investigation and Regression Modeling,” Metals,
vol. 14, no. 12, Art. no. 1353, 2024, doi: 10.3390/met14121353.'
mla: 'Chalicheemalapalli Jayasankar, Deviprasad, et al. “Effect of Substrate Temperature
on Bead Track Geometry of 316L in Directed Energy Deposition: Investigation and
Regression Modeling.” Metals, vol. 14, no. 12, 1353, MDPI AG, 2024, doi:10.3390/met14121353.'
short: D. Chalicheemalapalli Jayasankar, S. Gnaase, D. Lehnert, A. Walter, R. Rohling,
T. Tröster, Metals 14 (2024).
date_created: 2024-12-10T12:13:23Z
date_updated: 2026-03-20T08:44:28Z
ddc:
- '670'
department:
- _id: '321'
- _id: '149'
- _id: '9'
doi: 10.3390/met14121353
has_accepted_license: '1'
intvolume: ' 14'
issue: '12'
keyword:
- additive manufacturing
- direct energy deposition
- laser metal deposition
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.mdpi.com/2075-4701/14/12/1353
oa: '1'
publication: Metals
publication_identifier:
issn:
- 2075-4701
publication_status: published
publisher: MDPI AG
quality_controlled: '1'
status: public
title: 'Effect of Substrate Temperature on Bead Track Geometry of 316L in Directed
Energy Deposition: Investigation and Regression Modeling'
type: journal_article
user_id: '49504'
volume: 14
year: '2024'
...
---
_id: '56089'
abstract:
- lang: eng
text: Additive manufacturing (AM) technologies enable near-net-shape designs
and demand-oriented material usage, which significantly minimizes waste. This
points to a substantial opportunity for further optimization in material savings
and process design. The current study delves into the advancement of sustainable
manufacturing practices in the automotive industry, emphasizing the crucial role
of lightweight construction concepts and AM technologies in enhancing resource
efficiency and reducing greenhouse gas emissions. By exploring the integration
of novel AM techniques such as selective laser melting (SLM) and laser metal deposition
(LMD), the study aims to overcome existing limitations like slow build-up rates
and limited component resolution. The study’s core objective revolves around the
development and validation of a continuous process chain that synergizes different
AM routes. In the current study, the continuous process chain for DMG MORI Lasertec
65 3D’s LMD system and the DMG MORI Lasertec 30 3D’s was demonstrated using 316L
and 1.2709 steel materials. This integrated approach is designed to significantly
curtail process times and minimize component costs, thus suggesting an industry-oriented
process chain for future manufacturing paradigms. Additionally, the research investigates
the production and material behavior of components under varying manufacturing
processes, material combinations, and boundary layer materials. The culmination
of this study is the validation of the proposed process route through a technology
demonstrator, assessing its scalability and setting a benchmark for resource-efficient
manufacturing in the automotive sector.
article_number: '772'
article_type: original
author:
- first_name: Deviprasad
full_name: Chalicheemalapalli Jayasankar, Deviprasad
id: '49504'
last_name: Chalicheemalapalli Jayasankar
orcid: https://orcid.org/ 0000-0002-3446-2444
- first_name: Stefan
full_name: Gnaase, Stefan
id: '25730'
last_name: Gnaase
- first_name: Maximilian Alexander
full_name: Kaiser, Maximilian Alexander
id: '72351'
last_name: Kaiser
orcid: 0009-0008-1333-3396
- first_name: Dennis
full_name: Lehnert, Dennis
id: '90491'
last_name: Lehnert
- first_name: Thomas
full_name: Tröster, Thomas
id: '553'
last_name: Tröster
citation:
ama: 'Chalicheemalapalli Jayasankar D, Gnaase S, Kaiser MA, Lehnert D, Tröster T.
Advancements in Hybrid Additive Manufacturing: Integrating SLM and LMD for High-Performance
Applications. Metals. 2024;14(7). doi:10.3390/met14070772'
apa: 'Chalicheemalapalli Jayasankar, D., Gnaase, S., Kaiser, M. A., Lehnert, D.,
& Tröster, T. (2024). Advancements in Hybrid Additive Manufacturing: Integrating
SLM and LMD for High-Performance Applications. Metals, 14(7), Article
772. https://doi.org/10.3390/met14070772'
bibtex: '@article{Chalicheemalapalli Jayasankar_Gnaase_Kaiser_Lehnert_Tröster_2024,
title={Advancements in Hybrid Additive Manufacturing: Integrating SLM and LMD
for High-Performance Applications}, volume={14}, DOI={10.3390/met14070772},
number={7772}, journal={Metals}, publisher={MDPI AG}, author={Chalicheemalapalli
Jayasankar, Deviprasad and Gnaase, Stefan and Kaiser, Maximilian Alexander and
Lehnert, Dennis and Tröster, Thomas}, year={2024} }'
chicago: 'Chalicheemalapalli Jayasankar, Deviprasad, Stefan Gnaase, Maximilian Alexander
Kaiser, Dennis Lehnert, and Thomas Tröster. “Advancements in Hybrid Additive Manufacturing:
Integrating SLM and LMD for High-Performance Applications.” Metals 14,
no. 7 (2024). https://doi.org/10.3390/met14070772.'
ieee: 'D. Chalicheemalapalli Jayasankar, S. Gnaase, M. A. Kaiser, D. Lehnert, and
T. Tröster, “Advancements in Hybrid Additive Manufacturing: Integrating SLM and
LMD for High-Performance Applications,” Metals, vol. 14, no. 7, Art. no.
772, 2024, doi: 10.3390/met14070772.'
mla: 'Chalicheemalapalli Jayasankar, Deviprasad, et al. “Advancements in Hybrid
Additive Manufacturing: Integrating SLM and LMD for High-Performance Applications.”
Metals, vol. 14, no. 7, 772, MDPI AG, 2024, doi:10.3390/met14070772.'
short: D. Chalicheemalapalli Jayasankar, S. Gnaase, M.A. Kaiser, D. Lehnert, T.
Tröster, Metals 14 (2024).
date_created: 2024-09-10T10:19:32Z
date_updated: 2026-03-20T08:44:23Z
department:
- _id: '9'
- _id: '321'
- _id: '149'
doi: 10.3390/met14070772
intvolume: ' 14'
issue: '7'
keyword:
- additive manufacturing (AM)
- selective laser melting (SLM)
- laser metal deposition (LMD)
- hybrid manufacturing
- process optimization
- 316L
- '1.2709'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.mdpi.com/2075-4701/14/7/772
oa: '1'
publication: Metals
publication_identifier:
issn:
- 2075-4701
publication_status: published
publisher: MDPI AG
quality_controlled: '1'
status: public
title: 'Advancements in Hybrid Additive Manufacturing: Integrating SLM and LMD for
High-Performance Applications'
type: journal_article
user_id: '49504'
volume: 14
year: '2024'
...
---
_id: '55743'
abstract:
- lang: eng
text: The use of hybrid materials as a combination of fibre-reinforced plastic (FRP)
and metal is of great interest in order to meet the increasing demands for sustainability,
efficiency, and emission reduction based on the principle of lightweight design.
These two components can therefore be joined using the intrinsic joining technique,
which is formed by curing the matrix of the FRP component. In this study, for
the hybrid joint, unidirectionally pre-impregnated semi-finished products (prepregs)
with duromer matrix resin and micro-alloyed HC340LA steel were used. In order
to conduct a detailed investigation, the damage mechanisms of intrinsically produced
fibre metal laminates (FMLs), a new clamping device, and a novel pressing tool
were designed and put into operation. The prepregs were prestressed by applying
a preloading force using a specially designed prestressing frame. Hybrid specimens
were then produced and subjected to nanoindentation and a shear tensile test.
In particular, the effect of the residual stress state by varying the defined
prestressing force on the damage mechanisms was studied. The results showed that
no fracture patterns occurred in the interface of the specimens without preloading
as a result of curing at 120 °C, whereas specimens with preloading failed at the
boundary layer in the tensile range. Nevertheless, all specimens cured at 160
°C failed at the boundary layer in the tensile range. Furthermore, it was proven
that the force and displacement of the preloaded specimens were promisingly higher
than those of the unpreloaded specimens.
article_number: '316'
article_type: original
author:
- first_name: Hayrettin
full_name: Irmak, Hayrettin
id: '75657'
last_name: Irmak
orcid: https://orcid.org/0009-0009-6267-2957
- first_name: Steffen Rainer
full_name: Tinkloh, Steffen Rainer
id: '72722'
last_name: Tinkloh
- first_name: Thorsten
full_name: Marten, Thorsten
id: '338'
last_name: Marten
orcid: 0009-0001-6433-7839
- first_name: Thomas
full_name: Tröster, Thomas
id: '553'
last_name: Tröster
citation:
ama: Irmak H, Tinkloh SR, Marten T, Tröster T. Development of a Tool Concept for
Prestressed Fibre Metal Laminates and Their Effect on Interface Failure. Journal
of Composites Science. 2024;8(8). doi:10.3390/jcs8080316
apa: Irmak, H., Tinkloh, S. R., Marten, T., & Tröster, T. (2024). Development
of a Tool Concept for Prestressed Fibre Metal Laminates and Their Effect on Interface
Failure. Journal of Composites Science, 8(8), Article 316. https://doi.org/10.3390/jcs8080316
bibtex: '@article{Irmak_Tinkloh_Marten_Tröster_2024, title={Development of a Tool
Concept for Prestressed Fibre Metal Laminates and Their Effect on Interface Failure},
volume={8}, DOI={10.3390/jcs8080316},
number={8316}, journal={Journal of Composites Science}, publisher={MDPI AG}, author={Irmak,
Hayrettin and Tinkloh, Steffen Rainer and Marten, Thorsten and Tröster, Thomas},
year={2024} }'
chicago: Irmak, Hayrettin, Steffen Rainer Tinkloh, Thorsten Marten, and Thomas Tröster.
“Development of a Tool Concept for Prestressed Fibre Metal Laminates and Their
Effect on Interface Failure.” Journal of Composites Science 8, no. 8 (2024).
https://doi.org/10.3390/jcs8080316.
ieee: 'H. Irmak, S. R. Tinkloh, T. Marten, and T. Tröster, “Development of a Tool
Concept for Prestressed Fibre Metal Laminates and Their Effect on Interface Failure,”
Journal of Composites Science, vol. 8, no. 8, Art. no. 316, 2024, doi:
10.3390/jcs8080316.'
mla: Irmak, Hayrettin, et al. “Development of a Tool Concept for Prestressed Fibre
Metal Laminates and Their Effect on Interface Failure.” Journal of Composites
Science, vol. 8, no. 8, 316, MDPI AG, 2024, doi:10.3390/jcs8080316.
short: H. Irmak, S.R. Tinkloh, T. Marten, T. Tröster, Journal of Composites Science
8 (2024).
date_created: 2024-08-23T06:47:27Z
date_updated: 2026-03-23T10:31:09Z
department:
- _id: '9'
- _id: '321'
- _id: '149'
doi: 10.3390/jcs8080316
intvolume: ' 8'
issue: '8'
keyword:
- CFRP
- prestressing
- fibre metal laminate
- interface
- prepreg
- shear tensile test
language:
- iso: eng
publication: Journal of Composites Science
publication_identifier:
issn:
- 2504-477X
publication_status: published
publisher: MDPI AG
quality_controlled: '1'
status: public
title: Development of a Tool Concept for Prestressed Fibre Metal Laminates and Their
Effect on Interface Failure
type: journal_article
user_id: '338'
volume: 8
year: '2024'
...
---
_id: '48643'
author:
- first_name: Emine Fulya
full_name: Akbulut Irmak, Emine Fulya
id: '72008'
last_name: Akbulut Irmak
orcid: 0000-0002-1338-810X
- first_name: Hendrik
full_name: Hanses, Hendrik
id: '64527'
last_name: Hanses
- first_name: Ilona
full_name: Horwath, Ilona
id: '68836'
last_name: Horwath
- first_name: Thomas
full_name: Tröster, Thomas
id: '553'
last_name: Tröster
citation:
ama: 'Akbulut Irmak EF, Hanses H, Horwath I, Tröster T. Case Study III: Challenges
of lightweight design, vehicles, and rescuers. In: Climate Protection, Resource
Efficiency, and Sustainable Engineering. transcript Verlag; 2023. doi:10.14361/9783839463772-006'
apa: 'Akbulut Irmak, E. F., Hanses, H., Horwath, I., & Tröster, T. (2023). Case
Study III: Challenges of lightweight design, vehicles, and rescuers. In Climate
Protection, Resource Efficiency, and Sustainable Engineering. transcript Verlag.
https://doi.org/10.14361/9783839463772-006'
bibtex: '@inbook{Akbulut Irmak_Hanses_Horwath_Tröster_2023, place={Bielefeld, Germany},
title={Case Study III: Challenges of lightweight design, vehicles, and rescuers},
DOI={10.14361/9783839463772-006},
booktitle={Climate Protection, Resource Efficiency, and Sustainable Engineering},
publisher={transcript Verlag}, author={Akbulut Irmak, Emine Fulya and Hanses,
Hendrik and Horwath, Ilona and Tröster, Thomas}, year={2023} }'
chicago: 'Akbulut Irmak, Emine Fulya, Hendrik Hanses, Ilona Horwath, and Thomas
Tröster. “Case Study III: Challenges of Lightweight Design, Vehicles, and Rescuers.”
In Climate Protection, Resource Efficiency, and Sustainable Engineering.
Bielefeld, Germany: transcript Verlag, 2023. https://doi.org/10.14361/9783839463772-006.'
ieee: 'E. F. Akbulut Irmak, H. Hanses, I. Horwath, and T. Tröster, “Case Study III:
Challenges of lightweight design, vehicles, and rescuers,” in Climate Protection,
Resource Efficiency, and Sustainable Engineering, Bielefeld, Germany: transcript
Verlag, 2023.'
mla: 'Akbulut Irmak, Emine Fulya, et al. “Case Study III: Challenges of Lightweight
Design, Vehicles, and Rescuers.” Climate Protection, Resource Efficiency, and
Sustainable Engineering, transcript Verlag, 2023, doi:10.14361/9783839463772-006.'
short: 'E.F. Akbulut Irmak, H. Hanses, I. Horwath, T. Tröster, in: Climate Protection,
Resource Efficiency, and Sustainable Engineering, transcript Verlag, Bielefeld,
Germany, 2023.'
date_created: 2023-11-07T11:07:19Z
date_updated: 2023-11-07T11:14:22Z
department:
- _id: '9'
- _id: '321'
- _id: '149'
doi: 10.14361/9783839463772-006
language:
- iso: eng
place: Bielefeld, Germany
publication: Climate Protection, Resource Efficiency, and Sustainable Engineering
publication_identifier:
isbn:
- '9783837663778'
- '9783839463772'
issn:
- 2703-1543
- 2703-1551
publication_status: published
publisher: transcript Verlag
status: public
title: 'Case Study III: Challenges of lightweight design, vehicles, and rescuers'
type: book_chapter
user_id: '72008'
year: '2023'
...
---
_id: '49155'
abstract:
- lang: ger
text: Hybride Bauteile, welche aus Werkstoffen mit hohen spezifischen Festigkeiten
bestehen, können zu einem signifikanten Leichtbau im Automobil beitragen. Diese
Arbeit erforscht die hybride Kombination von pressgehärtetem Stahl und kohlenstofffaserverstärktem
Kunststoff. Ausgehend von einer Analyse bestehender Karosseriestrukturen erfolgt
ein Konzept für eine hybride B-Säule. Das Potential zur Gewichtsreduzierung durch
das hybride Bauteilkonzept wurde dabei zu 57 % identifiziert, welches jedoch nur
bei Sicherstellung einer intakten Grenzfläche erreicht wird. Zur Erlangung der
Grenzflächenfestigkeit bei charakteristischen Belastungsprofilen wurde ein Verfahren
zur Einbringung makroskopischer Formschlusselemente im Presshärteprozess entwickelt.
Durch diese Formschlusselemente wird eine Steigerung der Scherfestigkeit der hybriden
Komponenten von über 300 % erreicht. Die gewonnenen Erkenntnisse werden abschließend
zur Auslegung einer hybriden B-Säule angewendet.
- lang: eng
text: Hybrid components consisting of materials with high specific strengths can
contribute to significant automotive lightweight design. This thesis investigates
the hybrid combination of press-hardened steel and carbon fiber-reinforced plastics.
Based on a potential analysis of existing body-in-white structures, a concept
for a hybrid B-pillar is developed. The potential for weight reduction through
the hybrid component concept was identified to be 57 %, which is only achieved
if an intact interface is ensured. To achieve interface strength under characteristic
load profiles, a method was developed for creating macroscopic form closures in
the press hardening process. These form closures achieve an increase in the shear
strength of the hybrid components of over 300 %. Finally, the knowledge gained
is applied to the design of a hybrid B-pillar.
author:
- first_name: Marcel
full_name: Triebus, Marcel
id: '66036'
last_name: Triebus
citation:
ama: Triebus M. Belastungsgerechte Auslegung Automobiler Leichtbaustrukturen
Aus Pressgehärtetem Stahl Und Kohlenstofffaserverstärktem Kunststoff.; 2023.
doi:10.17619/UNIPB/1-1719
apa: Triebus, M. (2023). Belastungsgerechte Auslegung automobiler Leichtbaustrukturen
aus pressgehärtetem Stahl und kohlenstofffaserverstärktem Kunststoff. https://doi.org/10.17619/UNIPB/1-1719
bibtex: '@book{Triebus_2023, title={Belastungsgerechte Auslegung automobiler Leichtbaustrukturen
aus pressgehärtetem Stahl und kohlenstofffaserverstärktem Kunststoff}, DOI={10.17619/UNIPB/1-1719}, author={Triebus,
Marcel}, year={2023} }'
chicago: Triebus, Marcel. Belastungsgerechte Auslegung Automobiler Leichtbaustrukturen
Aus Pressgehärtetem Stahl Und Kohlenstofffaserverstärktem Kunststoff, 2023.
https://doi.org/10.17619/UNIPB/1-1719.
ieee: M. Triebus, Belastungsgerechte Auslegung automobiler Leichtbaustrukturen
aus pressgehärtetem Stahl und kohlenstofffaserverstärktem Kunststoff. 2023.
mla: Triebus, Marcel. Belastungsgerechte Auslegung Automobiler Leichtbaustrukturen
Aus Pressgehärtetem Stahl Und Kohlenstofffaserverstärktem Kunststoff. 2023,
doi:10.17619/UNIPB/1-1719.
short: M. Triebus, Belastungsgerechte Auslegung Automobiler Leichtbaustrukturen
Aus Pressgehärtetem Stahl Und Kohlenstofffaserverstärktem Kunststoff, 2023.
date_created: 2023-11-23T11:35:44Z
date_updated: 2023-11-23T11:50:35Z
department:
- _id: '321'
- _id: '9'
- _id: '149'
doi: 10.17619/UNIPB/1-1719
language:
- iso: eng
status: public
title: Belastungsgerechte Auslegung automobiler Leichtbaustrukturen aus pressgehärtetem
Stahl und kohlenstofffaserverstärktem Kunststoff
type: dissertation
user_id: '66036'
year: '2023'
...
---
_id: '48586'
author:
- first_name: Julian
full_name: Lückenkötter, Julian
id: '45543'
last_name: Lückenkötter
- first_name: Simon
full_name: Aydin, Simon
last_name: Aydin
- first_name: Thorsten
full_name: Marten, Thorsten
id: '338'
last_name: Marten
- first_name: Thomas
full_name: Tröster, Thomas
id: '553'
last_name: Tröster
citation:
ama: 'Lückenkötter J, Aydin S, Marten T, Tröster T. Analysis and Optimization of
Joint Formation in Hybrid Compression Molding. In: ; 2023.'
apa: Lückenkötter, J., Aydin, S., Marten, T., & Tröster, T. (2023). Analysis
and Optimization of Joint Formation in Hybrid Compression Molding. 23nd International
Conference on Composite Materials (ICCM23 2023), Belfast.
bibtex: '@inproceedings{Lückenkötter_Aydin_Marten_Tröster_2023, title={Analysis
and Optimization of Joint Formation in Hybrid Compression Molding}, author={Lückenkötter,
Julian and Aydin, Simon and Marten, Thorsten and Tröster, Thomas}, year={2023}
}'
chicago: Lückenkötter, Julian, Simon Aydin, Thorsten Marten, and Thomas Tröster.
“Analysis and Optimization of Joint Formation in Hybrid Compression Molding,”
2023.
ieee: J. Lückenkötter, S. Aydin, T. Marten, and T. Tröster, “Analysis and Optimization
of Joint Formation in Hybrid Compression Molding,” presented at the 23nd International
Conference on Composite Materials (ICCM23 2023), Belfast, 2023.
mla: Lückenkötter, Julian, et al. Analysis and Optimization of Joint Formation
in Hybrid Compression Molding. 2023.
short: 'J. Lückenkötter, S. Aydin, T. Marten, T. Tröster, in: 2023.'
conference:
end_date: 2023-08-04
location: Belfast
name: 23nd International Conference on Composite Materials (ICCM23 2023)
start_date: 2023-07-31
date_created: 2023-11-02T08:29:45Z
date_updated: 2023-11-02T08:30:43Z
department:
- _id: '321'
- _id: '9'
- _id: '149'
language:
- iso: eng
status: public
title: Analysis and Optimization of Joint Formation in Hybrid Compression Molding
type: conference
user_id: '45543'
year: '2023'
...
---
_id: '50448'
abstract:
- lang: ger
text: Hybridstrukturen bieten bei Anwendungen mit Biegebeanspruchung ein großes
Leichtbaupotenzial, erfordern jedoch komplexe und zum Teil mehrschrittige Fertigungsverfahren.
In dieser Arbeit wird ein Verfahren entwickelt, das auf Basis des Fließpressprozesses
biegebelastbare Hybridbalken in einem Schritt herstellt. Dazu wird ein Versuchsträger
entwickelt, der die Komplexität von Realbauteilen abbildet und für zerstörende
sowie zerstörungsfreie Charakterisierungsmethoden geeignet ist. Der Versuchsträger
besteht aus einer funktionalisierten Kernstruktur aus Glasfasermattenverstärktem
Polypropylen und äußeren Metallgurten aus Stahl- und Aluminiumlegierungen, die
mit einem Haftvermittlerfilm versehen sind. Anhand des Versuchsträgers wird ein
Fließpresswerkzeug und eine instrumentierte Fertigungsanlage entwickelt, mit der
die Hybridstrukturen prototypisch hergestellt werden. Zur Prozessoptimierung wird
die Verbindung mechanisch und optisch auf Probenebene analysiert. Weiterhin erfolgen
Bauteiluntersuchungen anhand von Dreipunktbiegetests, mit denen das strukturelle
Verhalten der Hybridbalken charakterisiert wird. Es wird festgestellt, dass sich
mit dem einstufigen Fließpressverfahren sehr gute Verbundfestigkeiten erzielen
lassen. Die Temperatur- und Druckführung weisen dabei einen großen Einfluss auf
das Ergebnis auf. Anhand der Bauteiluntersuchungen wird bestätigt, dass mit dem
entwickelten Verfahren Hybridbalken in nur einem Schritt gefertigt werden können,
die vergleichbare mechanische Eigenschaften zu Hybridstrukturkonzepten aus mehrschrittigen
Fertigungsverfahren aufweisen.
- lang: eng
text: Hybrid structures provide a high potential for lightweight design in applications
with bending loads, but require complex and sometimes multi-step manufacturing
processes. In this work, a process is developed that produces hybrid beams with
high bending strength in one step based on the compression moulding process. For
this purpose, a prototype beam is developed that represents the complexity of
real components and is suitable for destructive as well as non-destructive characterisation
methods. The prototype beam consists of a functionalised core structure made of
glass mat reinforced polypropylene and outer metal belts made of steel and aluminium
alloys, which are coated with an adhesive film. A moulding tool and an instrumented
production line are developed, with which the hybrid structures are prototypically
manufactured. For process optimisation, the joint is analysed mechanically and
optically at sample level. Furthermore, component investigations are carried out
using three-point bending tests to characterise the structural behaviour of the
hybrid beams. It is found that very good joint strengths can be achieved with
the one-step compression moulding process. The temperature and pressure control
have a major influence on the result. Based on the component tests, it is confirmed
that the developed manufacturing process can be used to produce hybrid beams in
just one step that have comparable mechanical properties to hybrid structure concepts
from multi-step manufacturing processes.
author:
- first_name: Tim
full_name: Stallmeister, Tim
id: '45538'
last_name: Stallmeister
citation:
ama: Stallmeister T. Verfahrensentwicklung Zur Einstufigen Herstellung von Biegebelastbaren
Hybridstrukturen Im Fließpressprozess.; 2023. doi:10.17619/UNIPB/1-1670
apa: Stallmeister, T. (2023). Verfahrensentwicklung zur einstufigen Herstellung
von biegebelastbaren Hybridstrukturen im Fließpressprozess. https://doi.org/10.17619/UNIPB/1-1670
bibtex: '@book{Stallmeister_2023, title={Verfahrensentwicklung zur einstufigen Herstellung
von biegebelastbaren Hybridstrukturen im Fließpressprozess}, DOI={10.17619/UNIPB/1-1670},
author={Stallmeister, Tim}, year={2023} }'
chicago: Stallmeister, Tim. Verfahrensentwicklung Zur Einstufigen Herstellung
von Biegebelastbaren Hybridstrukturen Im Fließpressprozess, 2023. https://doi.org/10.17619/UNIPB/1-1670.
ieee: T. Stallmeister, Verfahrensentwicklung zur einstufigen Herstellung von
biegebelastbaren Hybridstrukturen im Fließpressprozess. 2023.
mla: Stallmeister, Tim. Verfahrensentwicklung Zur Einstufigen Herstellung von
Biegebelastbaren Hybridstrukturen Im Fließpressprozess. 2023, doi:10.17619/UNIPB/1-1670.
short: T. Stallmeister, Verfahrensentwicklung Zur Einstufigen Herstellung von Biegebelastbaren
Hybridstrukturen Im Fließpressprozess, 2023.
date_created: 2024-01-11T09:12:01Z
date_updated: 2024-01-11T09:12:17Z
department:
- _id: '9'
- _id: '321'
- _id: '149'
doi: 10.17619/UNIPB/1-1670
language:
- iso: eng
status: public
supervisor:
- first_name: Thomas
full_name: Tröster, Thomas
id: '553'
last_name: Tröster
title: Verfahrensentwicklung zur einstufigen Herstellung von biegebelastbaren Hybridstrukturen
im Fließpressprozess
type: dissertation
user_id: '45543'
year: '2023'
...
---
_id: '48335'
author:
- first_name: Lukas
full_name: Knorr, Lukas
id: '90391'
last_name: Knorr
- first_name: André
full_name: Jungeilges, André
id: '45189'
last_name: Jungeilges
- first_name: Florian
full_name: Pfeifer, Florian
id: '22717'
last_name: Pfeifer
- first_name: Sascha Christian
full_name: Burmeister, Sascha Christian
id: '32685'
last_name: Burmeister
orcid: 0000-0001-6679-0453
- first_name: Henning
full_name: Meschede, Henning
id: '86954'
last_name: Meschede
orcid: 0000-0002-1538-089X
citation:
ama: Knorr L, Jungeilges A, Pfeifer F, Burmeister SC, Meschede H. Regenerative
Energien für einen effizienten Betrieb von Presshärtelinien. 4. Aachener Ofenbau-
und Thermoprozess-Kolloquium; 2023.
apa: Knorr, L., Jungeilges, A., Pfeifer, F., Burmeister, S. C., & Meschede,
H. (2023). Regenerative Energien für einen effizienten Betrieb von Presshärtelinien.
4. Aachener Ofenbau- und Thermoprozess-Kolloquium.
bibtex: '@book{Knorr_Jungeilges_Pfeifer_Burmeister_Meschede_2023, place={Aachen},
title={Regenerative Energien für einen effizienten Betrieb von Presshärtelinien},
publisher={4. Aachener Ofenbau- und Thermoprozess-Kolloquium}, author={Knorr,
Lukas and Jungeilges, André and Pfeifer, Florian and Burmeister, Sascha Christian
and Meschede, Henning}, year={2023} }'
chicago: 'Knorr, Lukas, André Jungeilges, Florian Pfeifer, Sascha Christian Burmeister,
and Henning Meschede. Regenerative Energien für einen effizienten Betrieb von
Presshärtelinien. Aachen: 4. Aachener Ofenbau- und Thermoprozess-Kolloquium,
2023.'
ieee: 'L. Knorr, A. Jungeilges, F. Pfeifer, S. C. Burmeister, and H. Meschede, Regenerative
Energien für einen effizienten Betrieb von Presshärtelinien. Aachen: 4. Aachener
Ofenbau- und Thermoprozess-Kolloquium, 2023.'
mla: Knorr, Lukas, et al. Regenerative Energien für einen effizienten Betrieb
von Presshärtelinien. 4. Aachener Ofenbau- und Thermoprozess-Kolloquium, 2023.
short: L. Knorr, A. Jungeilges, F. Pfeifer, S.C. Burmeister, H. Meschede, Regenerative
Energien für einen effizienten Betrieb von Presshärtelinien, 4. Aachener Ofenbau-
und Thermoprozess-Kolloquium, Aachen, 2023.
date_created: 2023-10-19T10:34:14Z
date_updated: 2024-01-11T09:05:19Z
department:
- _id: '644'
- _id: '149'
- _id: '277'
- _id: '321'
language:
- iso: ger
place: Aachen
publisher: 4. Aachener Ofenbau- und Thermoprozess-Kolloquium
status: public
title: Regenerative Energien für einen effizienten Betrieb von Presshärtelinien
type: misc
user_id: '45189'
year: '2023'
...
---
_id: '49106'
author:
- first_name: André
full_name: Jungeilges, André
id: '45189'
last_name: Jungeilges
citation:
ama: Jungeilges A. Possibilities of Sustainable Heating Methods for Press Hardening
Processes. Car Body Parts - Automotive Circle Conference; 2023.
apa: Jungeilges, A. (2023). Possibilities of Sustainable Heating Methods for
Press Hardening Processes. Car Body Parts - Automotive Circle Conference.
bibtex: '@book{Jungeilges_2023, place={Bad Nauheim}, title={Possibilities of Sustainable
Heating Methods for Press Hardening Processes}, publisher={Car Body Parts - Automotive
Circle Conference}, author={Jungeilges, André}, year={2023} }'
chicago: 'Jungeilges, André. Possibilities of Sustainable Heating Methods for
Press Hardening Processes. Bad Nauheim: Car Body Parts - Automotive Circle
Conference, 2023.'
ieee: 'A. Jungeilges, Possibilities of Sustainable Heating Methods for Press
Hardening Processes. Bad Nauheim: Car Body Parts - Automotive Circle Conference,
2023.'
mla: Jungeilges, André. Possibilities of Sustainable Heating Methods for Press
Hardening Processes. Car Body Parts - Automotive Circle Conference, 2023.
short: A. Jungeilges, Possibilities of Sustainable Heating Methods for Press Hardening
Processes, Car Body Parts - Automotive Circle Conference, Bad Nauheim, 2023.
date_created: 2023-11-21T14:27:25Z
date_updated: 2024-01-11T09:04:30Z
department:
- _id: '149'
- _id: '321'
language:
- iso: eng
place: Bad Nauheim
publisher: Car Body Parts - Automotive Circle Conference
status: public
title: Possibilities of Sustainable Heating Methods for Press Hardening Processes
type: misc
user_id: '45189'
year: '2023'
...
---
_id: '50449'
abstract:
- lang: eng
text: The importance of fiber-reinforced plastics for lightweight construction applications
is steadily increasing due to their outstanding weight-specific property values.
However, a decisive disadvantage of these composite materials has so far been
the high material and process costs, which is why fiber-reinforced plastics are
almost exclusively used in small to medium-sized series. Optimization of manufacturing
methods is of great importance to reduce the production cost. In this study, two
concepts are proposed that can optimize vacuum assisted light resin transfer molding
(VA-LRTM) further, leading to a possibility of fully automatic process. Conventional
VA-LRTM methods are used to produce complex fiber-reinforced plastics (FRP) and
hybrid components. Traditional molds used to produce components via VA-LRTM are
sealed using polymer materials to prevent the leakage of matrix system. The seals
undergo tremendous amounts of thermal, chemical, and mechanical loadings. Thus,
sealings must be replaced in short intervals. In the current study, a concept
where sealing is achieved by accelerating the curing of matrix system itself with
the help of heating elements and catalysts resulting in a self-sealing approach
is proposed. Another concern is mold surface contamination during component production.
To address this, a modified automatic cleaning technique based on ultrasonic cleaning
was proposed which can be integrated into the production line with minimum modification.
Both the proposed concepts were validated and optimized using experiments, simulations,
and analytical approaches by producing metal-FRP hybrid shafts.
author:
- first_name: Deviprasad
full_name: Chalicheemalapalli Jayasankar, Deviprasad
id: '49504'
last_name: Chalicheemalapalli Jayasankar
orcid: https://orcid.org/ 0000-0002-3446-2444
citation:
ama: Chalicheemalapalli Jayasankar D. Advances In RTM Manufacturing Of Metal-FRP
Hybrids By Self-Sealing And In-Mold Cleaning Techniques.; 2023.
apa: Chalicheemalapalli Jayasankar, D. (2023). Advances In RTM Manufacturing
Of Metal-FRP Hybrids By Self-Sealing And In-Mold Cleaning Techniques.
bibtex: '@book{Chalicheemalapalli Jayasankar_2023, title={Advances In RTM Manufacturing
Of Metal-FRP Hybrids By Self-Sealing And In-Mold Cleaning Techniques}, author={Chalicheemalapalli
Jayasankar, Deviprasad}, year={2023} }'
chicago: Chalicheemalapalli Jayasankar, Deviprasad. Advances In RTM Manufacturing
Of Metal-FRP Hybrids By Self-Sealing And In-Mold Cleaning Techniques, 2023.
ieee: D. Chalicheemalapalli Jayasankar, Advances In RTM Manufacturing Of Metal-FRP
Hybrids By Self-Sealing And In-Mold Cleaning Techniques. 2023.
mla: Chalicheemalapalli Jayasankar, Deviprasad. Advances In RTM Manufacturing
Of Metal-FRP Hybrids By Self-Sealing And In-Mold Cleaning Techniques. 2023.
short: D. Chalicheemalapalli Jayasankar, Advances In RTM Manufacturing Of Metal-FRP
Hybrids By Self-Sealing And In-Mold Cleaning Techniques, 2023.
date_created: 2024-01-11T09:28:04Z
date_updated: 2024-03-26T09:18:31Z
ddc:
- '670'
department:
- _id: '9'
- _id: '149'
- _id: '321'
file:
- access_level: closed
content_type: application/pdf
creator: dcj
date_created: 2024-01-11T09:24:01Z
date_updated: 2024-01-11T09:24:01Z
file_id: '50451'
file_name: 01_Dissertation_CJDP_7065653_V1.pdf
file_size: 7694237
relation: main_file
success: 1
file_date_updated: 2024-01-11T09:24:01Z
has_accepted_license: '1'
keyword:
- fiber-reinforced plastics
- resin transfer molding
- composites
language:
- iso: eng
status: public
supervisor:
- first_name: Thomas
full_name: Tröster, Thomas
last_name: Tröster
- first_name: Wolfgang
full_name: Bremser, Wolfgang
last_name: Bremser
title: Advances In RTM Manufacturing Of Metal-FRP Hybrids By Self-Sealing And In-Mold
Cleaning Techniques
type: dissertation
user_id: '49504'
year: '2023'
...
---
_id: '45831'
author:
- first_name: Deviprasad
full_name: Chalicheemalapalli Jayasankar, Deviprasad
id: '49504'
last_name: Chalicheemalapalli Jayasankar
orcid: https://orcid.org/ 0000-0002-3446-2444
- first_name: Tim
full_name: Stallmeister, Tim
id: '45538'
last_name: Stallmeister
- first_name: Julian
full_name: Lückenkötter, Julian
id: '45543'
last_name: Lückenkötter
- first_name: Thomas
full_name: Tröster, Thomas
id: '553'
last_name: Tröster
citation:
ama: 'Chalicheemalapalli Jayasankar D, Stallmeister T, Lückenkötter J, Tröster T.
In-Mold Assembly of Hybrid GMT-Steel Brake Pedals by Compression Molding. In:
; 2023.'
apa: Chalicheemalapalli Jayasankar, D., Stallmeister, T., Lückenkötter, J., &
Tröster, T. (2023). In-Mold Assembly of Hybrid GMT-Steel Brake Pedals by Compression
Molding. 5th International Conference on Light Materials - Science and Technology
LightMAT 2023, Trondheim, Norway .
bibtex: '@inproceedings{Chalicheemalapalli Jayasankar_Stallmeister_Lückenkötter_Tröster_2023,
title={In-Mold Assembly of Hybrid GMT-Steel Brake Pedals by Compression Molding},
author={Chalicheemalapalli Jayasankar, Deviprasad and Stallmeister, Tim and Lückenkötter,
Julian and Tröster, Thomas}, year={2023} }'
chicago: Chalicheemalapalli Jayasankar, Deviprasad, Tim Stallmeister, Julian Lückenkötter,
and Thomas Tröster. “In-Mold Assembly of Hybrid GMT-Steel Brake Pedals by Compression
Molding,” 2023.
ieee: D. Chalicheemalapalli Jayasankar, T. Stallmeister, J. Lückenkötter, and T.
Tröster, “In-Mold Assembly of Hybrid GMT-Steel Brake Pedals by Compression Molding,”
presented at the 5th International Conference on Light Materials - Science and
Technology LightMAT 2023, Trondheim, Norway , 2023.
mla: Chalicheemalapalli Jayasankar, Deviprasad, et al. In-Mold Assembly of Hybrid
GMT-Steel Brake Pedals by Compression Molding. 2023.
short: 'D. Chalicheemalapalli Jayasankar, T. Stallmeister, J. Lückenkötter, T. Tröster,
in: 2023.'
conference:
end_date: 2023-06-23
location: 'Trondheim, Norway '
name: 5th International Conference on Light Materials - Science and Technology LightMAT
2023
start_date: 2023-06-21
date_created: 2023-07-03T08:23:15Z
date_updated: 2024-03-26T09:19:44Z
ddc:
- '620'
department:
- _id: '9'
- _id: '321'
- _id: '149'
file:
- access_level: closed
content_type: application/pdf
creator: dcj
date_created: 2023-07-03T08:15:04Z
date_updated: 2023-07-03T08:15:04Z
file_id: '45832'
file_name: LightMAT-2023_Extended Abstract.pdf
file_size: 359467
relation: main_file
success: 1
file_date_updated: 2023-07-03T08:15:04Z
has_accepted_license: '1'
keyword:
- Compression Molding
- Glass Mat Thermoplastics
- Hybrid Brake Pedal
language:
- iso: eng
status: public
title: In-Mold Assembly of Hybrid GMT-Steel Brake Pedals by Compression Molding
type: conference_abstract
user_id: '49504'
year: '2023'
...