---
_id: '63512'
abstract:
- lang: eng
text: "The state of the art shows that PBF-LB/M offers great potential for pressure-loaded
parts, with significant weight reductions and simultaneous optimization of flow
resistance. This study is aimed at applying existing calculation methods for pressure-loaded
parts to additively manufactured pipe structures, considering the two materials
EN AC-43000 (3.2381, AlSi10Mg) and AISI 316L (1.4404, X2CrNiMo17-12-2). For this
purpose, systematic tensile tests are carried out for both materials. In addition,
a statistical evaluation is performed to determine the design-relevant strength
characteristics with a survival probability Ps of 97.5 % for both materials in
the as-built and heat-treated condition.\r\nPipe specimens are manufactured, half
of which are heat treated, geometrically measured and then subjected to a burst
pressure test to experimentally determine the failure-critical internal pressure.
These results are compared with calculated burst pressures. The calculations are
based on the application-relevant methods identified in this study, considering
the strength values determined for the respective material condition. This comparison
is used to assess the suitability of the calculation methods for additively manufactured
pipe structures, based on the materials investigated."
article_number: '105753'
author:
- first_name: Thorsten
full_name: Koers, Thorsten
id: '38077'
last_name: Koers
- first_name: Balázs
full_name: Magyar, Balázs
id: '97759'
last_name: Magyar
- first_name: Christian
full_name: Bödger, Christian
id: '93904'
last_name: Bödger
- first_name: Thomas
full_name: Tröster, Thomas
id: '553'
last_name: Tröster
citation:
ama: Koers T, Magyar B, Bödger C, Tröster T. Analytical and experimental determination
of the failure-critical pressure of pipe structures manufactured by PBF-LB/M.
International Journal of Pressure Vessels and Piping. Published online
2026. doi:10.1016/j.ijpvp.2026.105753
apa: Koers, T., Magyar, B., Bödger, C., & Tröster, T. (2026). Analytical and
experimental determination of the failure-critical pressure of pipe structures
manufactured by PBF-LB/M. International Journal of Pressure Vessels and Piping,
Article 105753. https://doi.org/10.1016/j.ijpvp.2026.105753
bibtex: '@article{Koers_Magyar_Bödger_Tröster_2026, title={Analytical and experimental
determination of the failure-critical pressure of pipe structures manufactured
by PBF-LB/M}, DOI={10.1016/j.ijpvp.2026.105753},
number={105753}, journal={International Journal of Pressure Vessels and Piping},
publisher={Elsevier BV}, author={Koers, Thorsten and Magyar, Balázs and Bödger,
Christian and Tröster, Thomas}, year={2026} }'
chicago: Koers, Thorsten, Balázs Magyar, Christian Bödger, and Thomas Tröster. “Analytical
and Experimental Determination of the Failure-Critical Pressure of Pipe Structures
Manufactured by PBF-LB/M.” International Journal of Pressure Vessels and Piping,
2026. https://doi.org/10.1016/j.ijpvp.2026.105753.
ieee: 'T. Koers, B. Magyar, C. Bödger, and T. Tröster, “Analytical and experimental
determination of the failure-critical pressure of pipe structures manufactured
by PBF-LB/M,” International Journal of Pressure Vessels and Piping, Art.
no. 105753, 2026, doi: 10.1016/j.ijpvp.2026.105753.'
mla: Koers, Thorsten, et al. “Analytical and Experimental Determination of the Failure-Critical
Pressure of Pipe Structures Manufactured by PBF-LB/M.” International Journal
of Pressure Vessels and Piping, 105753, Elsevier BV, 2026, doi:10.1016/j.ijpvp.2026.105753.
short: T. Koers, B. Magyar, C. Bödger, T. Tröster, International Journal of Pressure
Vessels and Piping (2026).
date_created: 2026-01-07T08:39:04Z
date_updated: 2026-01-14T11:56:01Z
department:
- _id: '146'
- _id: '9'
- _id: '624'
- _id: '149'
- _id: '321'
doi: 10.1016/j.ijpvp.2026.105753
keyword:
- PBF-LB/M
- Pipe structures
- Strength assessment
- Burst pressure test
- Geometrical deviations
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1016/j.ijpvp.2026.105753
oa: '1'
publication: International Journal of Pressure Vessels and Piping
publication_identifier:
issn:
- 0308-0161
publication_status: published
publisher: Elsevier BV
quality_controlled: '1'
status: public
title: Analytical and experimental determination of the failure-critical pressure
of pipe structures manufactured by PBF-LB/M
type: journal_article
user_id: '97759'
year: '2026'
...
---
_id: '48095'
abstract:
- lang: eng
text: Fused deposition modeling (FDM) is an additive manufacturing process that
can be used to manufacture three-dimensional thermoplastic components layer by
layer. One disadvantage of FDM is the shrinkage of the components during the manufacturing
process. The filament is molten in the nozzle, deposited layer by layer, and cools
down again. During solidification, the filament shrinks inhomogeneously in the
x/y/z direction, which leads to distortion of the component geometries. Particularly
with higher nominal lengths and complex local geometries, there is a need for
optimization with regard to dimensional accuracy. The aim of this paper is to
counteract this on the software side with global as well as local shrinkage factors.
The expected shrinkage within a layer is predicted with an in-house developed
software. The geometric accuracy of the model is verified by experimental investigations
on cylindrical test specimens. In these, the so-called clover effect occurs as
a result of the shrinkage. The circular shape of the deposited layer is deformed
by the distortion in the x–y plane comparable to a clover. Finally, the results
are validated by analyzing a demonstrator in the form of a bracket.
author:
- first_name: Thorsten
full_name: Koers, Thorsten
id: '38077'
last_name: Koers
- first_name: Balázs
full_name: Magyar, Balázs
id: '97759'
last_name: Magyar
citation:
ama: 'Koers T, Magyar B. Compensation of the Shrinkage Behavior Occurring in Cylindrical
Components in the FDM Process. In: Lamanna G, Opran C, eds. Macromolecular
Symposia. Vol 411. Wiley; 2023. doi:https://doi.org/10.1002/masy.202200185'
apa: Koers, T., & Magyar, B. (2023). Compensation of the Shrinkage Behavior
Occurring in Cylindrical Components in the FDM Process. In G. Lamanna & C.
Opran (Eds.), Macromolecular Symposia (Vol. 411, Issue 1). Wiley. https://doi.org/10.1002/masy.202200185
bibtex: '@inproceedings{Koers_Magyar_2023, title={Compensation of the Shrinkage
Behavior Occurring in Cylindrical Components in the FDM Process}, volume={411},
DOI={https://doi.org/10.1002/masy.202200185},
number={1}, booktitle={Macromolecular Symposia}, publisher={Wiley}, author={Koers,
Thorsten and Magyar, Balázs}, editor={Lamanna, Giuseppe and Opran, Constantin},
year={2023} }'
chicago: Koers, Thorsten, and Balázs Magyar. “Compensation of the Shrinkage Behavior
Occurring in Cylindrical Components in the FDM Process.” In Macromolecular
Symposia, edited by Giuseppe Lamanna and Constantin Opran, Vol. 411. Wiley,
2023. https://doi.org/10.1002/masy.202200185.
ieee: 'T. Koers and B. Magyar, “Compensation of the Shrinkage Behavior Occurring
in Cylindrical Components in the FDM Process,” in Macromolecular Symposia,
Bucharest, Romania, 2023, vol. 411, no. 1, doi: https://doi.org/10.1002/masy.202200185.'
mla: Koers, Thorsten, and Balázs Magyar. “Compensation of the Shrinkage Behavior
Occurring in Cylindrical Components in the FDM Process.” Macromolecular Symposia,
edited by Giuseppe Lamanna and Constantin Opran, vol. 411, no. 1, Wiley, 2023,
doi:https://doi.org/10.1002/masy.202200185.
short: 'T. Koers, B. Magyar, in: G. Lamanna, C. Opran (Eds.), Macromolecular Symposia,
Wiley, 2023.'
conference:
end_date: 2022-11-26
location: Bucharest, Romania
name: Conference on Design and Technologies for Polymeric and Composites Products
‐ POLCOM 2022
start_date: 2022-11-23
date_created: 2023-10-16T12:48:42Z
date_updated: 2023-11-17T11:36:15Z
department:
- _id: '146'
- _id: '219'
- _id: '9'
doi: https://doi.org/10.1002/masy.202200185
editor:
- first_name: Giuseppe
full_name: Lamanna, Giuseppe
last_name: Lamanna
- first_name: Constantin
full_name: Opran, Constantin
last_name: Opran
intvolume: ' 411'
issue: '1'
language:
- iso: eng
publication: Macromolecular Symposia
publisher: Wiley
quality_controlled: '1'
status: public
title: Compensation of the Shrinkage Behavior Occurring in Cylindrical Components
in the FDM Process
type: conference
user_id: '38077'
volume: 411
year: '2023'
...
---
_id: '47084'
abstract:
- lang: eng
text: "Fused Deposition Modeling (FDM) is an additive manufacturing process to produce\r\ncomplex
thermoplastic geometries layer by layer. The filament is melted in a nozzle, iteratively\r\ndeposited,
and then cools down. Due to the solidification process, the deposited filament
strands\r\ndeviate from their intended position due to shrinkage, resulting in
significant geometric deviations\r\nin the final part. In terms of dimensional
accuracy, there is a need for optimization, especially for\r\nlocal curved geometries
in relation to the global part with higher nominal dimensions. The aim of\r\nthis
study is to investigate the size and shape deviations for cylindrical FDM elements
and to\r\ncompensate the expected deformations by using an in-house software with
adaptive scaling factors\r\nin the x-y plane. Previous studies mainly focus on
simple, non-curved objects, this study also\r\nconsiders the influence of curvature
and global as well as local deviations on the final part."
author:
- first_name: Thorsten
full_name: Koers, Thorsten
id: '38077'
last_name: Koers
- first_name: Balázs
full_name: Magyar, Balázs
id: '97759'
last_name: Magyar
citation:
ama: 'Koers T, Magyar B. Determination and Compensation of the Shrinkage Behavior
of Cylindrical Elements in the FDM Process. In: Beaman J, ed. Proceedings of
the 34th Annual International Solid Freeform Fabrication Symposium 2023. Vol
34. ; 2023. doi:https://doi.org/10.26153/tsw/50920'
apa: Koers, T., & Magyar, B. (2023). Determination and Compensation of the Shrinkage
Behavior of Cylindrical Elements in the FDM Process. In J. Beaman (Ed.), Proceedings
of the 34th Annual International Solid Freeform Fabrication Symposium 2023
(Vol. 34). https://doi.org/10.26153/tsw/50920
bibtex: '@inproceedings{Koers_Magyar_2023, title={Determination and Compensation
of the Shrinkage Behavior of Cylindrical Elements in the FDM Process}, volume={34},
DOI={https://doi.org/10.26153/tsw/50920},
booktitle={Proceedings of the 34th Annual International Solid Freeform Fabrication
Symposium 2023}, author={Koers, Thorsten and Magyar, Balázs}, editor={Beaman,
Joseph}, year={2023} }'
chicago: Koers, Thorsten, and Balázs Magyar. “Determination and Compensation of
the Shrinkage Behavior of Cylindrical Elements in the FDM Process.” In Proceedings
of the 34th Annual International Solid Freeform Fabrication Symposium 2023,
edited by Joseph Beaman, Vol. 34, 2023. https://doi.org/10.26153/tsw/50920.
ieee: 'T. Koers and B. Magyar, “Determination and Compensation of the Shrinkage
Behavior of Cylindrical Elements in the FDM Process,” in Proceedings of the
34th Annual International Solid Freeform Fabrication Symposium 2023, Austin,
Texas, USA, 2023, vol. 34, doi: https://doi.org/10.26153/tsw/50920.'
mla: Koers, Thorsten, and Balázs Magyar. “Determination and Compensation of the
Shrinkage Behavior of Cylindrical Elements in the FDM Process.” Proceedings
of the 34th Annual International Solid Freeform Fabrication Symposium 2023,
edited by Joseph Beaman, vol. 34, 2023, doi:https://doi.org/10.26153/tsw/50920.
short: 'T. Koers, B. Magyar, in: J. Beaman (Ed.), Proceedings of the 34th Annual
International Solid Freeform Fabrication Symposium 2023, 2023.'
conference:
end_date: 2023-08-16
location: Austin, Texas, USA
name: 34th Annual International Solid Freeform Fabrication Symposium (SFF Symp 2023)
start_date: 2023-08-14
date_created: 2023-09-15T12:55:03Z
date_updated: 2026-03-19T08:28:08Z
department:
- _id: '146'
- _id: '219'
- _id: '624'
- _id: '9'
doi: https://doi.org/10.26153/tsw/50920
editor:
- first_name: Joseph
full_name: Beaman, Joseph
last_name: Beaman
intvolume: ' 34'
language:
- iso: eng
main_file_link:
- url: https://utw10945.utweb.utexas.edu/sites/default/files/2023/004%20DeterminationandCompensationoftheShrinkageBehaviorofCylindricalElementsintheFDMProcess.pdf
publication: Proceedings of the 34th Annual International Solid Freeform Fabrication
Symposium 2023
quality_controlled: '1'
status: public
title: Determination and Compensation of the Shrinkage Behavior of Cylindrical Elements
in the FDM Process
type: conference
user_id: '38077'
volume: 34
year: '2023'
...
---
_id: '48790'
abstract:
- lang: eng
text: To ensure uniform documentation of support structure information, a concept
is presented that enables a standardized depiction of support structures in technical
drawings based on ISO 128-3. To this end, requirements for a uniform depiction
are defined and a procedure for drawing entry is presented. The drawing entry
should contain all production-relevant support structure information. The standardized
documentation of support structure information in technical drawings is intended
to ensure a simple, clear and safe exchange of information between business units
or different companies along the value chain. As a result a possible drawing entry
of support structures was developed. To distinguish between different support
structure types, a standardized depiction of geometrical information in a specification
field is shown. The specification field gives a detailed description of the support
structure type, the geometry as well as the connection to the part and the building
platform. Also uncommon support types like lattice structures or CAD based support
structures can be implemented. To ensure the usability the depictio is editable
and extendable.
author:
- first_name: Stefan
full_name: Lammers, Stefan
id: '13835'
last_name: Lammers
- first_name: Thorsten
full_name: Koers, Thorsten
id: '38077'
last_name: Koers
- first_name: Balázs
full_name: Magyar, Balázs
id: '97759'
last_name: Magyar
- first_name: Detmar
full_name: Zimmer, Detmar
id: '604'
last_name: Zimmer
- first_name: Tobias
full_name: Lieneke, Tobias
id: '13956'
last_name: Lieneke
citation:
ama: 'Lammers S, Koers T, Magyar B, Zimmer D, Lieneke T. Depiction of support structures
in technical drawings. In: Beaman J, ed. Proceedings of the 34th Annual International
Solid Freeform Fabrication Symposium 2023. Vol 34. ; 2023. doi:https://doi.org/10.26153/tsw/50982'
apa: Lammers, S., Koers, T., Magyar, B., Zimmer, D., & Lieneke, T. (2023). Depiction
of support structures in technical drawings. In J. Beaman (Ed.), Proceedings
of the 34th Annual International Solid Freeform Fabrication Symposium 2023
(Vol. 34). https://doi.org/10.26153/tsw/50982
bibtex: '@inproceedings{Lammers_Koers_Magyar_Zimmer_Lieneke_2023, title={Depiction
of support structures in technical drawings}, volume={34}, DOI={https://doi.org/10.26153/tsw/50982},
booktitle={Proceedings of the 34th Annual International Solid Freeform Fabrication
Symposium 2023}, author={Lammers, Stefan and Koers, Thorsten and Magyar, Balázs
and Zimmer, Detmar and Lieneke, Tobias}, editor={Beaman, Joseph}, year={2023}
}'
chicago: Lammers, Stefan, Thorsten Koers, Balázs Magyar, Detmar Zimmer, and Tobias
Lieneke. “Depiction of Support Structures in Technical Drawings.” In Proceedings
of the 34th Annual International Solid Freeform Fabrication Symposium 2023,
edited by Joseph Beaman, Vol. 34, 2023. https://doi.org/10.26153/tsw/50982.
ieee: 'S. Lammers, T. Koers, B. Magyar, D. Zimmer, and T. Lieneke, “Depiction of
support structures in technical drawings,” in Proceedings of the 34th Annual
International Solid Freeform Fabrication Symposium 2023, Austin, Texas, USA,
2023, vol. 34, doi: https://doi.org/10.26153/tsw/50982.'
mla: Lammers, Stefan, et al. “Depiction of Support Structures in Technical Drawings.”
Proceedings of the 34th Annual International Solid Freeform Fabrication Symposium
2023, edited by Joseph Beaman, vol. 34, 2023, doi:https://doi.org/10.26153/tsw/50982.
short: 'S. Lammers, T. Koers, B. Magyar, D. Zimmer, T. Lieneke, in: J. Beaman (Ed.),
Proceedings of the 34th Annual International Solid Freeform Fabrication Symposium
2023, 2023.'
conference:
end_date: 2023-08-16
location: Austin, Texas, USA
name: 34th Annual International Solid Freeform Fabrication Symposium (SFF Symp 2023)
start_date: 2023-08-14
date_created: 2023-11-13T09:17:35Z
date_updated: 2026-03-19T08:26:25Z
department:
- _id: '146'
- _id: '219'
- _id: '624'
- _id: '9'
doi: https://doi.org/10.26153/tsw/50982
editor:
- first_name: Joseph
full_name: Beaman, Joseph
last_name: Beaman
intvolume: ' 34'
language:
- iso: eng
main_file_link:
- url: https://utw10945.utweb.utexas.edu/sites/default/files/2023/053%20DepictionofSupportStructuresinTechnicalDrawings.pdf
publication: Proceedings of the 34th Annual International Solid Freeform Fabrication
Symposium 2023
quality_controlled: '1'
status: public
title: Depiction of support structures in technical drawings
type: conference
user_id: '38077'
volume: 34
year: '2023'
...
---
_id: '22495'
author:
- first_name: Detmar
full_name: Zimmer, Detmar
id: '604'
last_name: Zimmer
- first_name: Thorsten
full_name: Koers, Thorsten
id: '38077'
last_name: Koers
- first_name: Tobias
full_name: Bührmann, Tobias
id: '51794'
last_name: Bührmann
citation:
ama: 'Zimmer D, Koers T, Bührmann T. Zukunftstechnologie und moderne Antriebe kombiniert:
AM in modularen Antriebssystemen. Newsletter der Wissenschaftlichen Gesellschaft
für Produktentwicklung. 2021;1:9-10.'
apa: 'Zimmer, D., Koers, T., & Bührmann, T. (2021). Zukunftstechnologie und
moderne Antriebe kombiniert: AM in modularen Antriebssystemen. Newsletter Der
Wissenschaftlichen Gesellschaft Für Produktentwicklung, 1, 9–10.'
bibtex: '@article{Zimmer_Koers_Bührmann_2021, title={Zukunftstechnologie und moderne
Antriebe kombiniert: AM in modularen Antriebssystemen}, volume={1}, journal={Newsletter
der Wissenschaftlichen Gesellschaft für Produktentwicklung}, publisher={Wissenschaftliche
Gesellschaft für Produktentwicklung WiGeP}, author={Zimmer, Detmar and Koers,
Thorsten and Bührmann, Tobias}, year={2021}, pages={9–10} }'
chicago: 'Zimmer, Detmar, Thorsten Koers, and Tobias Bührmann. “Zukunftstechnologie
Und Moderne Antriebe Kombiniert: AM in Modularen Antriebssystemen.” Newsletter
Der Wissenschaftlichen Gesellschaft Für Produktentwicklung 1 (2021): 9–10.'
ieee: 'D. Zimmer, T. Koers, and T. Bührmann, “Zukunftstechnologie und moderne Antriebe
kombiniert: AM in modularen Antriebssystemen,” Newsletter der Wissenschaftlichen
Gesellschaft für Produktentwicklung, vol. 1, pp. 9–10, 2021.'
mla: 'Zimmer, Detmar, et al. “Zukunftstechnologie Und Moderne Antriebe Kombiniert:
AM in Modularen Antriebssystemen.” Newsletter Der Wissenschaftlichen Gesellschaft
Für Produktentwicklung, vol. 1, Wissenschaftliche Gesellschaft für Produktentwicklung
WiGeP, 2021, pp. 9–10.'
short: D. Zimmer, T. Koers, T. Bührmann, Newsletter Der Wissenschaftlichen Gesellschaft
Für Produktentwicklung 1 (2021) 9–10.
date_created: 2021-06-21T13:11:14Z
date_updated: 2022-01-06T06:55:34Z
department:
- _id: '9'
- _id: '146'
- _id: '219'
- _id: '624'
intvolume: ' 1'
language:
- iso: eng
main_file_link:
- url: 'http://www.wigep.de/fileadmin/download/wigep/WiGeP_News_1_2021.pdf '
page: 9-10
publication: Newsletter der Wissenschaftlichen Gesellschaft für Produktentwicklung
publication_identifier:
isbn:
- 1613-5504
publisher: Wissenschaftliche Gesellschaft für Produktentwicklung WiGeP
status: public
title: 'Zukunftstechnologie und moderne Antriebe kombiniert: AM in modularen Antriebssystemen'
type: journal_article
user_id: '38077'
volume: 1
year: '2021'
...