---
_id: '65240'
author:
- first_name: Jonas Dirk Rudolf Helmut
  full_name: Petzke, Jonas Dirk Rudolf Helmut
  id: '57512'
  last_name: Petzke
- first_name: Leon
  full_name: Schmidt, Leon
  id: '63035'
  last_name: Schmidt
- first_name: Dennis
  full_name: Kleinschmidt, Dennis
  id: '40516'
  last_name: Kleinschmidt
- first_name: Florian
  full_name: Brüning, Florian
  id: '72920'
  last_name: Brüning
citation:
  ama: 'Petzke JDRH, Schmidt L, Kleinschmidt D, Brüning F. Experimental Analysis of
    the Mixing Behavior of Ethylene-Propylene-Diene Rubber (EPDM) in a Rubber Pin
    Extruder under Variation of Process Parameters and Mixing Elements. In: <i>International
    Rubber Conference (IRC) 2025, Bangkok, BITEC; e-Abstract Book</i>. ; 2025:150–151.'
  apa: Petzke, J. D. R. H., Schmidt, L., Kleinschmidt, D., &#38; Brüning, F. (2025).
    Experimental Analysis of the Mixing Behavior of Ethylene-Propylene-Diene Rubber
    (EPDM) in a Rubber Pin Extruder under Variation of Process Parameters and Mixing
    Elements. In <i>International Rubber Conference (IRC) 2025, Bangkok, BITEC; e-abstract
    book</i> (pp. 150–151).
  bibtex: '@inbook{Petzke_Schmidt_Kleinschmidt_Brüning_2025, title={Experimental Analysis
    of the Mixing Behavior of Ethylene-Propylene-Diene Rubber (EPDM) in a Rubber Pin
    Extruder under Variation of Process Parameters and Mixing Elements}, booktitle={International
    Rubber Conference (IRC) 2025, Bangkok, BITEC; e-abstract book}, author={Petzke,
    Jonas Dirk Rudolf Helmut and Schmidt, Leon and Kleinschmidt, Dennis and Brüning,
    Florian}, year={2025}, pages={150–151} }'
  chicago: Petzke, Jonas Dirk Rudolf Helmut, Leon Schmidt, Dennis Kleinschmidt, and
    Florian Brüning. “Experimental Analysis of the Mixing Behavior of Ethylene-Propylene-Diene
    Rubber (EPDM) in a Rubber Pin Extruder under Variation of Process Parameters and
    Mixing Elements.” In <i>International Rubber Conference (IRC) 2025, Bangkok, BITEC;
    e-Abstract Book</i>, 150–151, 2025.
  ieee: J. D. R. H. Petzke, L. Schmidt, D. Kleinschmidt, and F. Brüning, “Experimental
    Analysis of the Mixing Behavior of Ethylene-Propylene-Diene Rubber (EPDM) in a
    Rubber Pin Extruder under Variation of Process Parameters and Mixing Elements,”
    in <i>International Rubber Conference (IRC) 2025, Bangkok, BITEC; e-abstract book</i>,
    2025, pp. 150–151.
  mla: Petzke, Jonas Dirk Rudolf Helmut, et al. “Experimental Analysis of the Mixing
    Behavior of Ethylene-Propylene-Diene Rubber (EPDM) in a Rubber Pin Extruder under
    Variation of Process Parameters and Mixing Elements.” <i>International Rubber
    Conference (IRC) 2025, Bangkok, BITEC; e-Abstract Book</i>, 2025, pp. 150–151.
  short: 'J.D.R.H. Petzke, L. Schmidt, D. Kleinschmidt, F. Brüning, in: International
    Rubber Conference (IRC) 2025, Bangkok, BITEC; e-Abstract Book, 2025, pp. 150–151.'
date_created: 2026-03-30T13:58:30Z
date_updated: 2026-03-30T14:04:45Z
department:
- _id: '9'
- _id: '321'
- _id: '367'
keyword:
- distributives Mischen
- Extrusion
- Kautschuk
- Stiftextruder
language:
- iso: eng
page: 150–151
publication: International Rubber Conference (IRC) 2025, Bangkok, BITEC; e-abstract
  book
quality_controlled: '1'
status: public
title: Experimental Analysis of the Mixing Behavior of Ethylene-Propylene-Diene Rubber
  (EPDM) in a Rubber Pin Extruder under Variation of Process Parameters and Mixing
  Elements
type: book_chapter
user_id: '59363'
year: '2025'
...
---
_id: '65238'
author:
- first_name: Hogenrich
  full_name: Damanik, Hogenrich
  last_name: Damanik
- first_name: Arooj
  full_name: Fatima, Arooj
  last_name: Fatima
- first_name: Stefan
  full_name: Turek, Stefan
  last_name: Turek
- first_name: Jonas Dirk Rudolf Helmut
  full_name: Petzke, Jonas Dirk Rudolf Helmut
  id: '57512'
  last_name: Petzke
- first_name: Dennis
  full_name: Kleinschmidt, Dennis
  id: '40516'
  last_name: Kleinschmidt
- first_name: Florian
  full_name: Brüning, Florian
  id: '72920'
  last_name: Brüning
citation:
  ama: 'Damanik H, Fatima A, Turek S, Petzke JDRH, Kleinschmidt D, Brüning F. Numerical
    modeling of the non-isothermal viscoelastic flow behavior of rubber compounds
    based on the PHAN-THİEN-TANNER (PTT) model. In: <i>International Rubber Conference
    (IRC) 2025, Bangkok, BITEC; e-Abstract Book</i>. ; 2025:266–268.'
  apa: Damanik, H., Fatima, A., Turek, S., Petzke, J. D. R. H., Kleinschmidt, D.,
    &#38; Brüning, F. (2025). Numerical modeling of the non-isothermal viscoelastic
    flow behavior of rubber compounds based on the PHAN-THİEN-TANNER (PTT) model.
    In <i>International Rubber Conference (IRC) 2025, Bangkok, BITEC; e-abstract book</i>
    (pp. 266–268).
  bibtex: '@inbook{Damanik_Fatima_Turek_Petzke_Kleinschmidt_Brüning_2025, title={Numerical
    modeling of the non-isothermal viscoelastic flow behavior of rubber compounds
    based on the PHAN-THİEN-TANNER (PTT) model}, booktitle={International Rubber Conference
    (IRC) 2025, Bangkok, BITEC; e-abstract book}, author={Damanik, Hogenrich and Fatima,
    Arooj and Turek, Stefan and Petzke, Jonas Dirk Rudolf Helmut and Kleinschmidt,
    Dennis and Brüning, Florian}, year={2025}, pages={266–268} }'
  chicago: Damanik, Hogenrich, Arooj Fatima, Stefan Turek, Jonas Dirk Rudolf Helmut
    Petzke, Dennis Kleinschmidt, and Florian Brüning. “Numerical Modeling of the Non-Isothermal
    Viscoelastic Flow Behavior of Rubber Compounds Based on the PHAN-THİEN-TANNER
    (PTT) Model.” In <i>International Rubber Conference (IRC) 2025, Bangkok, BITEC;
    e-Abstract Book</i>, 266–268, 2025.
  ieee: H. Damanik, A. Fatima, S. Turek, J. D. R. H. Petzke, D. Kleinschmidt, and
    F. Brüning, “Numerical modeling of the non-isothermal viscoelastic flow behavior
    of rubber compounds based on the PHAN-THİEN-TANNER (PTT) model,” in <i>International
    Rubber Conference (IRC) 2025, Bangkok, BITEC; e-abstract book</i>, 2025, pp. 266–268.
  mla: Damanik, Hogenrich, et al. “Numerical Modeling of the Non-Isothermal Viscoelastic
    Flow Behavior of Rubber Compounds Based on the PHAN-THİEN-TANNER (PTT) Model.”
    <i>International Rubber Conference (IRC) 2025, Bangkok, BITEC; e-Abstract Book</i>,
    2025, pp. 266–268.
  short: 'H. Damanik, A. Fatima, S. Turek, J.D.R.H. Petzke, D. Kleinschmidt, F. Brüning,
    in: International Rubber Conference (IRC) 2025, Bangkok, BITEC; e-Abstract Book,
    2025, pp. 266–268.'
date_created: 2026-03-30T13:58:30Z
date_updated: 2026-03-30T14:02:19Z
department:
- _id: '9'
- _id: '321'
- _id: '367'
keyword:
- CFD simulation
- Materialmodellierung
- Phan-Thien-Tanner
- PTT
- Simulation
language:
- iso: eng
page: 266–268
publication: International Rubber Conference (IRC) 2025, Bangkok, BITEC; e-abstract
  book
quality_controlled: '1'
status: public
title: Numerical modeling of the non-isothermal viscoelastic flow behavior of rubber
  compounds based on the PHAN-THİEN-TANNER (PTT) model
type: book_chapter
user_id: '59363'
year: '2025'
...
---
_id: '65239'
author:
- first_name: Jonas Dirk Rudolf Helmut
  full_name: Petzke, Jonas Dirk Rudolf Helmut
  id: '57512'
  last_name: Petzke
- first_name: Dennis
  full_name: Kleinschmidt, Dennis
  id: '40516'
  last_name: Kleinschmidt
- first_name: Florian
  full_name: Brüning, Florian
  id: '72920'
  last_name: Brüning
citation:
  ama: 'Petzke JDRH, Kleinschmidt D, Brüning F. Thermo-Chemical Devulcanization of
    Sulfur-cured Styrene-Butadiene Rubber (SBR) Using Diphenyldisulfide (DPDS). In:
    <i>International Rubber Conference (IRC) 2025, Bangkok, BITEC; e-Abstract Book</i>.
    ; 2025:185–186.'
  apa: Petzke, J. D. R. H., Kleinschmidt, D., &#38; Brüning, F. (2025). Thermo-Chemical
    Devulcanization of Sulfur-cured Styrene-Butadiene Rubber (SBR) Using Diphenyldisulfide
    (DPDS). In <i>International Rubber Conference (IRC) 2025, Bangkok, BITEC; e-abstract
    book</i> (pp. 185–186).
  bibtex: '@inbook{Petzke_Kleinschmidt_Brüning_2025, title={Thermo-Chemical Devulcanization
    of Sulfur-cured Styrene-Butadiene Rubber (SBR) Using Diphenyldisulfide (DPDS)},
    booktitle={International Rubber Conference (IRC) 2025, Bangkok, BITEC; e-abstract
    book}, author={Petzke, Jonas Dirk Rudolf Helmut and Kleinschmidt, Dennis and Brüning,
    Florian}, year={2025}, pages={185–186} }'
  chicago: Petzke, Jonas Dirk Rudolf Helmut, Dennis Kleinschmidt, and Florian Brüning.
    “Thermo-Chemical Devulcanization of Sulfur-Cured Styrene-Butadiene Rubber (SBR)
    Using Diphenyldisulfide (DPDS).” In <i>International Rubber Conference (IRC) 2025,
    Bangkok, BITEC; e-Abstract Book</i>, 185–186, 2025.
  ieee: J. D. R. H. Petzke, D. Kleinschmidt, and F. Brüning, “Thermo-Chemical Devulcanization
    of Sulfur-cured Styrene-Butadiene Rubber (SBR) Using Diphenyldisulfide (DPDS),”
    in <i>International Rubber Conference (IRC) 2025, Bangkok, BITEC; e-abstract book</i>,
    2025, pp. 185–186.
  mla: Petzke, Jonas Dirk Rudolf Helmut, et al. “Thermo-Chemical Devulcanization of
    Sulfur-Cured Styrene-Butadiene Rubber (SBR) Using Diphenyldisulfide (DPDS).” <i>International
    Rubber Conference (IRC) 2025, Bangkok, BITEC; e-Abstract Book</i>, 2025, pp. 185–186.
  short: 'J.D.R.H. Petzke, D. Kleinschmidt, F. Brüning, in: International Rubber Conference
    (IRC) 2025, Bangkok, BITEC; e-Abstract Book, 2025, pp. 185–186.'
date_created: 2026-03-30T13:58:30Z
date_updated: 2026-03-30T14:03:05Z
department:
- _id: '9'
- _id: '321'
- _id: '367'
keyword:
- Devulkanisation
- Kautschuk
- Recycling
language:
- iso: eng
page: 185–186
publication: International Rubber Conference (IRC) 2025, Bangkok, BITEC; e-abstract
  book
quality_controlled: '1'
status: public
title: Thermo-Chemical Devulcanization of Sulfur-cured Styrene-Butadiene Rubber (SBR)
  Using Diphenyldisulfide (DPDS)
type: book_chapter
user_id: '59363'
year: '2025'
...
---
_id: '65241'
author:
- first_name: Timm
  full_name: Rempel, Timm
  id: '63257'
  last_name: Rempel
- first_name: Florian
  full_name: Brüning, Florian
  id: '72920'
  last_name: Brüning
citation:
  ama: Rempel T, Brüning F. Investigations into the specific throughput stability
    of conical feed zones over the rotation speed during the direct processing of
    polypropylene regrind. <i>ANTEC</i>. Published online 2025.
  apa: Rempel, T., &#38; Brüning, F. (2025). Investigations into the specific throughput
    stability of conical feed zones over the rotation speed during the direct processing
    of polypropylene regrind. <i>ANTEC</i>.
  bibtex: '@article{Rempel_Brüning_2025, title={Investigations into the specific throughput
    stability of conical feed zones over the rotation speed during the direct processing
    of polypropylene regrind}, journal={ANTEC}, author={Rempel, Timm and Brüning,
    Florian}, year={2025} }'
  chicago: Rempel, Timm, and Florian Brüning. “Investigations into the Specific Throughput
    Stability of Conical Feed Zones over the Rotation Speed during the Direct Processing
    of Polypropylene Regrind.” <i>ANTEC</i>, 2025.
  ieee: T. Rempel and F. Brüning, “Investigations into the specific throughput stability
    of conical feed zones over the rotation speed during the direct processing of
    polypropylene regrind,” <i>ANTEC</i>, 2025.
  mla: Rempel, Timm, and Florian Brüning. “Investigations into the Specific Throughput
    Stability of Conical Feed Zones over the Rotation Speed during the Direct Processing
    of Polypropylene Regrind.” <i>ANTEC</i>, 2025.
  short: T. Rempel, F. Brüning, ANTEC (2025).
date_created: 2026-03-30T13:58:31Z
date_updated: 2026-03-30T14:03:45Z
department:
- _id: '9'
- _id: '321'
- _id: '367'
language:
- iso: eng
publication: ANTEC
status: public
title: Investigations into the specific throughput stability of conical feed zones
  over the rotation speed during the direct processing of polypropylene regrind
type: journal_article
user_id: '59363'
year: '2025'
...
---
_id: '65245'
author:
- first_name: Jonas Dirk Rudolf Helmut
  full_name: Petzke, Jonas Dirk Rudolf Helmut
  id: '57512'
  last_name: Petzke
citation:
  ama: 'Petzke JDRH. Devulcanization behavior of SBR-based GTR compounds. In: ; 2025.'
  apa: Petzke, J. D. R. H. (2025). <i>Devulcanization behavior of SBR-based GTR compounds</i>.
  bibtex: '@inproceedings{Petzke_2025, title={Devulcanization behavior of SBR-based
    GTR compounds}, author={Petzke, Jonas Dirk Rudolf Helmut}, year={2025} }'
  chicago: Petzke, Jonas Dirk Rudolf Helmut. “Devulcanization Behavior of SBR-Based
    GTR Compounds,” 2025.
  ieee: J. D. R. H. Petzke, “Devulcanization behavior of SBR-based GTR compounds,”
    2025.
  mla: Petzke, Jonas Dirk Rudolf Helmut. <i>Devulcanization Behavior of SBR-Based
    GTR Compounds</i>. 2025.
  short: 'J.D.R.H. Petzke, in: 2025.'
date_created: 2026-03-30T14:32:24Z
date_updated: 2026-03-30T14:32:32Z
department:
- _id: '9'
- _id: '321'
- _id: '367'
language:
- iso: eng
status: public
title: Devulcanization behavior of SBR-based GTR compounds
type: conference
user_id: '59363'
year: '2025'
...
---
_id: '50530'
abstract:
- lang: ger
  text: "Die Extrusion stellt das mengenmäßig dominante Verarbeitungsverfahren für
    thermoplastische Kunststoffe dar. Daher gibt es starke Bestrebungen in diesem
    Bereich hin zu einer höheren Wirtschaftlichkeit, welche beispielsweise durch höheren
    Massedurchsatz bei gleichbleibender Maschinengröße erreicht werden kann, oder
    aber auch im Hinblick auf eine Kreislaufwirtschaft die Bestrebung hin zu einer
    materialschonenden Verarbeitung. Beide Bestrebungen erfordern spezielle Schneckenkonzepte.
    Hierunter fallenWave- Schnecken, welche in beiden Bereichen ein vorteilhaftes
    Prozessverhalten aufzeigen sollen. Die Auslegung von Wave-Schnecken erfordert
    jedoch ein stärkeres Verständnis über das geometrieabhängige Prozessverhalten
    in der Extrusion. \r\nIm Rahmen der Dissertation werden zwei Themengebiete angegangen.
    Das erste Thema ist die Herleitung einer Methode zur Charakterisierung des Abbauverhaltens
    von Thermoplasten sowie die Nutzung der Charakterisierung als Vorhersagemodell.
    Das zweite Thema behandelt die Auslegung von Wave-Schnecken basierend auf numerischen
    Simulationen samt Validierung anhand von sieben Energy-Transfer-Schnecken im Vergleich
    zu drei konventionellen Schnecken. Hierbei werden unter anderem der Materialabbau,
    die thermische und die stoffliche Homogenität betrachtet, um ein umfassendes Bild
    über das Prozessverhalten der Schnecken zu schaffen. Die vorgestellten Untersuchungen
    dienen schlussendlich zu einer Bestätigung des vorteilhaften Prozessverhaltens
    von Wave-Schnecken."
- lang: eng
  text: "The extrusion process is the dominant processing method for thermoplastics
    in terms of quantity. For this reason, there are strong efforts in this area towards
    greater economic efficiency, which can be achieved, for example, through higher
    mass throughput with the same machine size, or, with regard to a circular economy,
    towards material-preserving processing. Both endeavours require special screw
    concepts. These include wave screws, which should demonstrate advantageous process
    behaviour in both areas. However, the design of wave screws requires a better
    understanding of the geometry-dependent process behaviour in extrusion. \r\nTwo
    topics are addressed in the dissertation. The first topic is the derivation of
    a method to characterise the degradation behaviour of thermoplastics and the use
    of the characterisation as a predictive model. The second topic deals with the
    design of wave screws based on numerical simulations including validation using
    seven energy transfer screws in comparison to three conventional screws. Among
    other things, the material degradation, the thermal and the material homogeneity
    are considered in order to create a comprehensive picture of the process behaviour
    of the screws. The presented investigations ultimately serve to confirm the advantageous
    process behaviour of wave screws."
author:
- first_name: Christoph Wilhelm Theodor
  full_name: Schall, Christoph Wilhelm Theodor
  id: '44224'
  last_name: Schall
citation:
  ama: Schall CWT. <i>Materialschonende Verarbeitung von Thermoplasten auf Wave-Schnecken</i>.
    Vol Band 2/2024. Shaker Verlag; 2024.
  apa: 'Schall, C. W. T. (2024). <i>Materialschonende Verarbeitung von Thermoplasten
    auf Wave-Schnecken: Vol. Band 2/2024</i>. Shaker Verlag.'
  bibtex: '@book{Schall_2024, place={Düren}, series={Schriftenreihe Kunststofftechnik
    Paderborn}, title={Materialschonende Verarbeitung von Thermoplasten auf Wave-Schnecken},
    volume={Band 2/2024}, publisher={Shaker Verlag}, author={Schall, Christoph Wilhelm
    Theodor}, year={2024}, collection={Schriftenreihe Kunststofftechnik Paderborn}
    }'
  chicago: 'Schall, Christoph Wilhelm Theodor. <i>Materialschonende Verarbeitung von
    Thermoplasten auf Wave-Schnecken</i>. Vol. Band 2/2024. Schriftenreihe Kunststofftechnik
    Paderborn. Düren: Shaker Verlag, 2024.'
  ieee: 'C. W. T. Schall, <i>Materialschonende Verarbeitung von Thermoplasten auf
    Wave-Schnecken</i>, vol. Band 2/2024. Düren: Shaker Verlag, 2024.'
  mla: Schall, Christoph Wilhelm Theodor. <i>Materialschonende Verarbeitung von Thermoplasten
    auf Wave-Schnecken</i>. Shaker Verlag, 2024.
  short: C.W.T. Schall, Materialschonende Verarbeitung von Thermoplasten auf Wave-Schnecken,
    Shaker Verlag, Düren, 2024.
date_created: 2024-01-16T09:48:27Z
date_updated: 2024-01-16T09:49:07Z
department:
- _id: '148'
- _id: '321'
- _id: '9'
language:
- iso: ger
page: '224'
place: Düren
publication_identifier:
  isbn:
  - 978-3-8440-9334-6
publication_status: published
publisher: Shaker Verlag
series_title: Schriftenreihe Kunststofftechnik Paderborn
status: public
supervisor:
- first_name: Volker
  full_name: Schöppner, Volker
  id: '20530'
  last_name: Schöppner
title: Materialschonende Verarbeitung von Thermoplasten auf Wave-Schnecken
type: dissertation
user_id: '44224'
volume: Band 2/2024
year: '2024'
...
---
_id: '51732'
author:
- first_name: Maximilian
  full_name: Richters, Maximilian
  last_name: Richters
citation:
  ama: Richters M. <i>Herstellung und Charakterisierung von Wood-Plastic-Composites
    (WPC) mit einer Matrix aus thermoplastischen Polyurethanen zur Erzeugung einer
    Holz-WPC-Verbundstruktur </i>.; 2024.
  apa: Richters, M. (2024). <i>Herstellung und Charakterisierung von Wood-Plastic-Composites
    (WPC) mit einer Matrix aus thermoplastischen Polyurethanen zur Erzeugung einer
    Holz-WPC-Verbundstruktur </i>.
  bibtex: '@book{Richters_2024, title={Herstellung und Charakterisierung von Wood-Plastic-Composites
    (WPC) mit einer Matrix aus thermoplastischen Polyurethanen zur Erzeugung einer
    Holz-WPC-Verbundstruktur }, author={Richters, Maximilian}, year={2024} }'
  chicago: Richters, Maximilian. <i>Herstellung und Charakterisierung von Wood-Plastic-Composites
    (WPC) mit einer Matrix aus thermoplastischen Polyurethanen zur Erzeugung einer
    Holz-WPC-Verbundstruktur </i>, 2024.
  ieee: M. Richters, <i>Herstellung und Charakterisierung von Wood-Plastic-Composites
    (WPC) mit einer Matrix aus thermoplastischen Polyurethanen zur Erzeugung einer
    Holz-WPC-Verbundstruktur </i>. 2024.
  mla: Richters, Maximilian. <i>Herstellung und Charakterisierung von Wood-Plastic-Composites
    (WPC) mit einer Matrix aus thermoplastischen Polyurethanen zur Erzeugung einer
    Holz-WPC-Verbundstruktur </i>. 2024.
  short: M. Richters, Herstellung und Charakterisierung von Wood-Plastic-Composites
    (WPC) mit einer Matrix aus thermoplastischen Polyurethanen zur Erzeugung einer
    Holz-WPC-Verbundstruktur , 2024.
date_created: 2024-02-21T18:03:11Z
date_updated: 2024-02-21T18:09:39Z
department:
- _id: '147'
- _id: '9'
- _id: '321'
extern: '1'
language:
- iso: ger
publication_identifier:
  unknown:
  - 978-3-8440-9390-2
publication_status: published
status: public
title: 'Herstellung und Charakterisierung von Wood-Plastic-Composites (WPC) mit einer
  Matrix aus thermoplastischen Polyurethanen zur Erzeugung einer Holz-WPC-Verbundstruktur '
type: dissertation
user_id: '38221'
year: '2024'
...
---
_id: '52217'
abstract:
- lang: eng
  text: <jats:title>Abstract</jats:title><jats:p>Polycarbonate (PC) is an amorphous
    polymer that is an extremely robust material with a high tenacity, and thus suitable
    for a lightweight construction with glass‐like transparency. Due to these advantageous
    properties, PC is often used in industry for example in medical devices, automotive
    headlamps, sporting equipment, electronics, and a variety of other products. PC
    is often subjected to uniaxial and biaxial loading conditions. Therefore, reliable
    material models have to take into account the various resulting experimental effects.
    For those reasons, we investigate PC specimens under uniaxial and biaxial loading
    by using different stretch rates and loading scenarios. In addition to that, we
    propose methods for optical measurement of local stretches to obtain the approximated
    local true stress. In future work, the displacement fields and the resulting reaction
    forces will be used for parameter identification of constitutive equations.</jats:p>
author:
- first_name: Ayoub
  full_name: Hamdoun, Ayoub
  last_name: Hamdoun
- first_name: Rolf
  full_name: Mahnken, Rolf
  id: '335'
  last_name: Mahnken
citation:
  ama: Hamdoun A, Mahnken R. Experimental investigations of uniaxial and biaxial cold
    stretching within PC‐films and bars using optical measurements. <i>PAMM</i>. Published
    online 2024. doi:<a href="https://doi.org/10.1002/pamm.202300114">10.1002/pamm.202300114</a>
  apa: Hamdoun, A., &#38; Mahnken, R. (2024). Experimental investigations of uniaxial
    and biaxial cold stretching within PC‐films and bars using optical measurements.
    <i>PAMM</i>. <a href="https://doi.org/10.1002/pamm.202300114">https://doi.org/10.1002/pamm.202300114</a>
  bibtex: '@article{Hamdoun_Mahnken_2024, title={Experimental investigations of uniaxial
    and biaxial cold stretching within PC‐films and bars using optical measurements},
    DOI={<a href="https://doi.org/10.1002/pamm.202300114">10.1002/pamm.202300114</a>},
    journal={PAMM}, publisher={Wiley}, author={Hamdoun, Ayoub and Mahnken, Rolf},
    year={2024} }'
  chicago: Hamdoun, Ayoub, and Rolf Mahnken. “Experimental Investigations of Uniaxial
    and Biaxial Cold Stretching within PC‐films and Bars Using Optical Measurements.”
    <i>PAMM</i>, 2024. <a href="https://doi.org/10.1002/pamm.202300114">https://doi.org/10.1002/pamm.202300114</a>.
  ieee: 'A. Hamdoun and R. Mahnken, “Experimental investigations of uniaxial and biaxial
    cold stretching within PC‐films and bars using optical measurements,” <i>PAMM</i>,
    2024, doi: <a href="https://doi.org/10.1002/pamm.202300114">10.1002/pamm.202300114</a>.'
  mla: Hamdoun, Ayoub, and Rolf Mahnken. “Experimental Investigations of Uniaxial
    and Biaxial Cold Stretching within PC‐films and Bars Using Optical Measurements.”
    <i>PAMM</i>, Wiley, 2024, doi:<a href="https://doi.org/10.1002/pamm.202300114">10.1002/pamm.202300114</a>.
  short: A. Hamdoun, R. Mahnken, PAMM (2024).
date_created: 2024-02-29T13:53:13Z
date_updated: 2024-02-29T13:58:38Z
department:
- _id: '9'
- _id: '154'
- _id: '321'
doi: 10.1002/pamm.202300114
keyword:
- Electrical and Electronic Engineering
- Atomic and Molecular Physics
- and Optics
language:
- iso: eng
publication: PAMM
publication_identifier:
  issn:
  - 1617-7061
  - 1617-7061
publication_status: published
publisher: Wiley
quality_controlled: '1'
status: public
title: Experimental investigations of uniaxial and biaxial cold stretching within
  PC‐films and bars using optical measurements
type: journal_article
user_id: '335'
year: '2024'
...
---
_id: '52218'
article_number: '112642'
author:
- first_name: Peter
  full_name: Lenz, Peter
  last_name: Lenz
- first_name: Rolf
  full_name: Mahnken, Rolf
  id: '335'
  last_name: Mahnken
citation:
  ama: Lenz P, Mahnken R. Multiscale simulation of polymer curing of composites combined
    mean-field homogenisation methods at large strains. <i>International Journal of
    Solids and Structures</i>. 2024;290. doi:<a href="https://doi.org/10.1016/j.ijsolstr.2023.112642">10.1016/j.ijsolstr.2023.112642</a>
  apa: Lenz, P., &#38; Mahnken, R. (2024). Multiscale simulation of polymer curing
    of composites combined mean-field homogenisation methods at large strains. <i>International
    Journal of Solids and Structures</i>, <i>290</i>, Article 112642. <a href="https://doi.org/10.1016/j.ijsolstr.2023.112642">https://doi.org/10.1016/j.ijsolstr.2023.112642</a>
  bibtex: '@article{Lenz_Mahnken_2024, title={Multiscale simulation of polymer curing
    of composites combined mean-field homogenisation methods at large strains}, volume={290},
    DOI={<a href="https://doi.org/10.1016/j.ijsolstr.2023.112642">10.1016/j.ijsolstr.2023.112642</a>},
    number={112642}, journal={International Journal of Solids and Structures}, publisher={Elsevier
    BV}, author={Lenz, Peter and Mahnken, Rolf}, year={2024} }'
  chicago: Lenz, Peter, and Rolf Mahnken. “Multiscale Simulation of Polymer Curing
    of Composites Combined Mean-Field Homogenisation Methods at Large Strains.” <i>International
    Journal of Solids and Structures</i> 290 (2024). <a href="https://doi.org/10.1016/j.ijsolstr.2023.112642">https://doi.org/10.1016/j.ijsolstr.2023.112642</a>.
  ieee: 'P. Lenz and R. Mahnken, “Multiscale simulation of polymer curing of composites
    combined mean-field homogenisation methods at large strains,” <i>International
    Journal of Solids and Structures</i>, vol. 290, Art. no. 112642, 2024, doi: <a
    href="https://doi.org/10.1016/j.ijsolstr.2023.112642">10.1016/j.ijsolstr.2023.112642</a>.'
  mla: Lenz, Peter, and Rolf Mahnken. “Multiscale Simulation of Polymer Curing of
    Composites Combined Mean-Field Homogenisation Methods at Large Strains.” <i>International
    Journal of Solids and Structures</i>, vol. 290, 112642, Elsevier BV, 2024, doi:<a
    href="https://doi.org/10.1016/j.ijsolstr.2023.112642">10.1016/j.ijsolstr.2023.112642</a>.
  short: P. Lenz, R. Mahnken, International Journal of Solids and Structures 290 (2024).
date_created: 2024-02-29T13:57:56Z
date_updated: 2024-02-29T13:58:14Z
department:
- _id: '9'
- _id: '154'
- _id: '321'
doi: 10.1016/j.ijsolstr.2023.112642
intvolume: '       290'
keyword:
- Applied Mathematics
- Mechanical Engineering
- Mechanics of Materials
- Condensed Matter Physics
- General Materials Science
- Modeling and Simulation
language:
- iso: eng
publication: International Journal of Solids and Structures
publication_identifier:
  issn:
  - 0020-7683
publication_status: published
publisher: Elsevier BV
quality_controlled: '1'
status: public
title: Multiscale simulation of polymer curing of composites combined mean-field homogenisation
  methods at large strains
type: journal_article
user_id: '335'
volume: 290
year: '2024'
...
---
_id: '52404'
author:
- first_name: Felix
  full_name: Flachmann, Felix
  id: '38212'
  last_name: Flachmann
  orcid: 0000-0002-7651-7028
citation:
  ama: Flachmann F. <i>Untersuchung des Füllverhaltens holzfaserverstärkter Kunststoffe
    (WPC) mit hohen Füllstoffgehalten</i>. Vol Band 4. Shaker Verlag; 2024.
  apa: 'Flachmann, F. (2024). <i>Untersuchung des Füllverhaltens holzfaserverstärkter
    Kunststoffe (WPC) mit hohen Füllstoffgehalten: Vol. Band 4</i>. Shaker Verlag.'
  bibtex: '@book{Flachmann_2024, place={Düren}, series={Schriftenreihe Kunststofftechnik
    Paderborn}, title={Untersuchung des Füllverhaltens holzfaserverstärkter Kunststoffe
    (WPC) mit hohen Füllstoffgehalten}, volume={Band 4}, publisher={Shaker Verlag},
    author={Flachmann, Felix}, year={2024}, collection={Schriftenreihe Kunststofftechnik
    Paderborn} }'
  chicago: 'Flachmann, Felix. <i>Untersuchung des Füllverhaltens holzfaserverstärkter
    Kunststoffe (WPC) mit hohen Füllstoffgehalten</i>. Vol. Band 4. Schriftenreihe
    Kunststofftechnik Paderborn. Düren: Shaker Verlag, 2024.'
  ieee: 'F. Flachmann, <i>Untersuchung des Füllverhaltens holzfaserverstärkter Kunststoffe
    (WPC) mit hohen Füllstoffgehalten</i>, vol. Band 4. Düren: Shaker Verlag, 2024.'
  mla: Flachmann, Felix. <i>Untersuchung des Füllverhaltens holzfaserverstärkter Kunststoffe
    (WPC) mit hohen Füllstoffgehalten</i>. Shaker Verlag, 2024.
  short: F. Flachmann, Untersuchung des Füllverhaltens holzfaserverstärkter Kunststoffe
    (WPC) mit hohen Füllstoffgehalten, Shaker Verlag, Düren, 2024.
date_created: 2024-03-08T14:25:29Z
date_updated: 2024-03-08T14:27:50Z
department:
- _id: '321'
- _id: '9'
- _id: '367'
- _id: '147'
extern: '1'
language:
- iso: ger
page: '140'
place: Düren
publication_identifier:
  isbn:
  - 978-3-8440-9432-9
publication_status: published
publisher: Shaker Verlag
series_title: Schriftenreihe Kunststofftechnik Paderborn
status: public
supervisor:
- first_name: Elmar
  full_name: Moritzer, Elmar
  id: '20531'
  last_name: Moritzer
title: Untersuchung des Füllverhaltens holzfaserverstärkter Kunststoffe (WPC) mit
  hohen Füllstoffgehalten
type: dissertation
user_id: '38212'
volume: Band 4
year: '2024'
...
---
_id: '52576'
author:
- first_name: Maximilian
  full_name: Frank, Maximilian
  last_name: Frank
citation:
  ama: Frank M. <i>Simulationsgestützte Bestimmung und Optimierung der Mischgüte in
    der Einschneckenextrusion</i>. Vol 2024,5. Shaker Verlag; 2024.
  apa: 'Frank, M. (2024). <i>Simulationsgestützte Bestimmung und Optimierung der Mischgüte
    in der Einschneckenextrusion: Vol. 2024,5</i>. Shaker Verlag.'
  bibtex: '@book{Frank_2024, series={Schriftenreihe Kunststofftechnik Paderborn},
    title={Simulationsgestützte Bestimmung und Optimierung der Mischgüte in der Einschneckenextrusion},
    volume={2024,5}, publisher={Shaker Verlag}, author={Frank, Maximilian}, year={2024},
    collection={Schriftenreihe Kunststofftechnik Paderborn} }'
  chicago: Frank, Maximilian. <i>Simulationsgestützte Bestimmung und Optimierung der
    Mischgüte in der Einschneckenextrusion</i>. Vol. 2024,5. Schriftenreihe Kunststofftechnik
    Paderborn. Shaker Verlag, 2024.
  ieee: M. Frank, <i>Simulationsgestützte Bestimmung und Optimierung der Mischgüte
    in der Einschneckenextrusion</i>, vol. 2024,5. Shaker Verlag, 2024.
  mla: Frank, Maximilian. <i>Simulationsgestützte Bestimmung und Optimierung der Mischgüte
    in der Einschneckenextrusion</i>. Shaker Verlag, 2024.
  short: M. Frank, Simulationsgestützte Bestimmung und Optimierung der Mischgüte in
    der Einschneckenextrusion, Shaker Verlag, 2024.
date_created: 2024-03-14T11:51:35Z
date_updated: 2024-03-14T11:51:40Z
department:
- _id: '9'
- _id: '367'
- _id: '321'
extern: '1'
language:
- iso: ger
page: '234'
publication_identifier:
  isbn:
  - 978-3-8440-9444-2
publisher: Shaker Verlag
series_title: Schriftenreihe Kunststofftechnik Paderborn
status: public
title: Simulationsgestützte Bestimmung und Optimierung der Mischgüte in der Einschneckenextrusion
type: dissertation
user_id: '44116'
volume: 2024,5
year: '2024'
...
---
_id: '52233'
abstract:
- lang: eng
  text: ELDIRK methods are defined to have an <jats:italic>Explicit Last</jats:italic>
    stage in the general Butcher array of <jats:italic>Diagonal Implicit Runge-Kutta</jats:italic>
    methods, with the consequence, that no additional system of equations must be
    solved, compared to the embedded RK method. Two general formulations for second-
    and third-order ELDIRK methods have been obtained recently in Mahnken [21] with
    specific schemes,  e.g. for the embedded implicit Euler method, the embedded trapezoidal-rule
    and the embedded Ellsiepen method. In the first part of this paper, we investigate
    some general stability characteristics of ELDIRK methods, and it will be shown
    that the above specific RK schemes are not A-stable. Therefore, in the second
    part, the above-mentioned general formulations are used for further stability
    investigations, with the aim to construct new second- and third-order ELDIRK methods
    which simultaneously are A-stable. Two numerical examples are concerned with the
    curing for a thermosetting material and phase-field RVE modeling for crystallinity
    and orientation. The numerical results confirm the theoretical results on convergence
    order and stability.
author:
- first_name: Rolf
  full_name: Mahnken, Rolf
  id: '335'
  last_name: Mahnken
- first_name: Hendrik
  full_name: Westermann, Hendrik
  id: '60816'
  last_name: Westermann
  orcid: 0000-0002-5034-9708
citation:
  ama: Mahnken R, Westermann H. Construction of A-stable explicit last-stage diagonal
    implicit Runge–Kutta (ELDIRK) methods. <i>Computational Mechanics</i>. Published
    online 2024. doi:<a href="https://doi.org/10.1007/s00466-024-02442-y">10.1007/s00466-024-02442-y</a>
  apa: Mahnken, R., &#38; Westermann, H. (2024). Construction of A-stable explicit
    last-stage diagonal implicit Runge–Kutta (ELDIRK) methods. <i>Computational Mechanics</i>.
    <a href="https://doi.org/10.1007/s00466-024-02442-y">https://doi.org/10.1007/s00466-024-02442-y</a>
  bibtex: '@article{Mahnken_Westermann_2024, title={Construction of A-stable explicit
    last-stage diagonal implicit Runge–Kutta (ELDIRK) methods}, DOI={<a href="https://doi.org/10.1007/s00466-024-02442-y">10.1007/s00466-024-02442-y</a>},
    journal={Computational Mechanics}, publisher={Springer Science and Business Media
    LLC}, author={Mahnken, Rolf and Westermann, Hendrik}, year={2024} }'
  chicago: Mahnken, Rolf, and Hendrik Westermann. “Construction of A-Stable Explicit
    Last-Stage Diagonal Implicit Runge–Kutta (ELDIRK) Methods.” <i>Computational Mechanics</i>,
    2024. <a href="https://doi.org/10.1007/s00466-024-02442-y">https://doi.org/10.1007/s00466-024-02442-y</a>.
  ieee: 'R. Mahnken and H. Westermann, “Construction of A-stable explicit last-stage
    diagonal implicit Runge–Kutta (ELDIRK) methods,” <i>Computational Mechanics</i>,
    2024, doi: <a href="https://doi.org/10.1007/s00466-024-02442-y">10.1007/s00466-024-02442-y</a>.'
  mla: Mahnken, Rolf, and Hendrik Westermann. “Construction of A-Stable Explicit Last-Stage
    Diagonal Implicit Runge–Kutta (ELDIRK) Methods.” <i>Computational Mechanics</i>,
    Springer Science and Business Media LLC, 2024, doi:<a href="https://doi.org/10.1007/s00466-024-02442-y">10.1007/s00466-024-02442-y</a>.
  short: R. Mahnken, H. Westermann, Computational Mechanics (2024).
date_created: 2024-03-03T13:23:28Z
date_updated: 2024-03-19T12:14:07Z
department:
- _id: '154'
- _id: '321'
doi: 10.1007/s00466-024-02442-y
keyword:
- Applied Mathematics
- Computational Mathematics
- Computational Theory and Mathematics
- Mechanical Engineering
- Ocean Engineering
- Computational Mechanics
language:
- iso: eng
publication: Computational Mechanics
publication_identifier:
  issn:
  - 0178-7675
  - 1432-0924
publication_status: published
publisher: Springer Science and Business Media LLC
quality_controlled: '1'
status: public
title: Construction of A-stable explicit last-stage diagonal implicit Runge–Kutta
  (ELDIRK) methods
type: journal_article
user_id: '335'
year: '2024'
...
---
_id: '52738'
abstract:
- lang: eng
  text: <jats:p>Through tailoring the geometry and design of biomaterials, additive
    manufacturing is revolutionizing the production of metallic patient-specific implants,
    e.g., the Ti-6Al-7Nb alloy. Unfortunately, studies investigating this alloy showed
    that additively produced samples exhibit anisotropic microstructures. This anisotropy
    compromises the mechanical properties and complicates the loading state in the
    implant. Moreover, the minimum requirements as specified per designated standards
    such as ISO 5832-11 are not met. The remedy to this problem is performing a conventional
    heat treatment. As this route requires energy, infrastructure, labor, and expertise,
    which in turn mean time and money, many of the additive manufacturing benefits
    are negated. Thus, the goal of this work was to achieve better isotropy by applying
    only adapted additive manufacturing process parameters, specifically focusing
    on the build orientations. In this work, samples orientated in 90°, 45°, and 0°
    directions relative to the building platform were manufactured and tested. These
    tests included mechanical (tensile and fatigue tests) as well as microstructural
    analyses (SEM and EBSD). Subsequently, the results of these tests such as fractography
    were correlated with the acquired mechanical properties. These showed that 90°-aligned
    samples performed best under fatigue load and that all requirements specified
    by the standard regarding monotonic load were met.</jats:p>
article_number: '117'
author:
- first_name: Dennis
  full_name: Milaege, Dennis
  id: '35461'
  last_name: Milaege
- first_name: Niklas
  full_name: Eschemann, Niklas
  last_name: Eschemann
- first_name: Kay-Peter
  full_name: Hoyer, Kay-Peter
  id: '48411'
  last_name: Hoyer
- first_name: Mirko
  full_name: Schaper, Mirko
  id: '43720'
  last_name: Schaper
citation:
  ama: Milaege D, Eschemann N, Hoyer K-P, Schaper M. Anisotropic Mechanical and Microstructural
    Properties of a Ti-6Al-7Nb Alloy for Biomedical Applications Manufactured via
    Laser Powder Bed Fusion. <i>Crystals</i>. 2024;14(2). doi:<a href="https://doi.org/10.3390/cryst14020117">10.3390/cryst14020117</a>
  apa: Milaege, D., Eschemann, N., Hoyer, K.-P., &#38; Schaper, M. (2024). Anisotropic
    Mechanical and Microstructural Properties of a Ti-6Al-7Nb Alloy for Biomedical
    Applications Manufactured via Laser Powder Bed Fusion. <i>Crystals</i>, <i>14</i>(2),
    Article 117. <a href="https://doi.org/10.3390/cryst14020117">https://doi.org/10.3390/cryst14020117</a>
  bibtex: '@article{Milaege_Eschemann_Hoyer_Schaper_2024, title={Anisotropic Mechanical
    and Microstructural Properties of a Ti-6Al-7Nb Alloy for Biomedical Applications
    Manufactured via Laser Powder Bed Fusion}, volume={14}, DOI={<a href="https://doi.org/10.3390/cryst14020117">10.3390/cryst14020117</a>},
    number={2117}, journal={Crystals}, publisher={MDPI AG}, author={Milaege, Dennis
    and Eschemann, Niklas and Hoyer, Kay-Peter and Schaper, Mirko}, year={2024} }'
  chicago: Milaege, Dennis, Niklas Eschemann, Kay-Peter Hoyer, and Mirko Schaper.
    “Anisotropic Mechanical and Microstructural Properties of a Ti-6Al-7Nb Alloy for
    Biomedical Applications Manufactured via Laser Powder Bed Fusion.” <i>Crystals</i>
    14, no. 2 (2024). <a href="https://doi.org/10.3390/cryst14020117">https://doi.org/10.3390/cryst14020117</a>.
  ieee: 'D. Milaege, N. Eschemann, K.-P. Hoyer, and M. Schaper, “Anisotropic Mechanical
    and Microstructural Properties of a Ti-6Al-7Nb Alloy for Biomedical Applications
    Manufactured via Laser Powder Bed Fusion,” <i>Crystals</i>, vol. 14, no. 2, Art.
    no. 117, 2024, doi: <a href="https://doi.org/10.3390/cryst14020117">10.3390/cryst14020117</a>.'
  mla: Milaege, Dennis, et al. “Anisotropic Mechanical and Microstructural Properties
    of a Ti-6Al-7Nb Alloy for Biomedical Applications Manufactured via Laser Powder
    Bed Fusion.” <i>Crystals</i>, vol. 14, no. 2, 117, MDPI AG, 2024, doi:<a href="https://doi.org/10.3390/cryst14020117">10.3390/cryst14020117</a>.
  short: D. Milaege, N. Eschemann, K.-P. Hoyer, M. Schaper, Crystals 14 (2024).
date_created: 2024-03-22T13:46:37Z
date_updated: 2024-03-22T14:22:36Z
department:
- _id: '158'
- _id: '321'
doi: 10.3390/cryst14020117
intvolume: '        14'
issue: '2'
keyword:
- Inorganic Chemistry
- Condensed Matter Physics
- General Materials Science
- General Chemical Engineering
language:
- iso: eng
publication: Crystals
publication_identifier:
  issn:
  - 2073-4352
publication_status: published
publisher: MDPI AG
quality_controlled: '1'
status: public
title: Anisotropic Mechanical and Microstructural Properties of a Ti-6Al-7Nb Alloy
  for Biomedical Applications Manufactured via Laser Powder Bed Fusion
type: journal_article
user_id: '35461'
volume: 14
year: '2024'
...
---
_id: '53132'
author:
- first_name: Maximilian
  full_name: Richters, Maximilian
  id: '38221'
  last_name: Richters
citation:
  ama: Richters M. <i>Herstellung Und Charakterisierung von Wood-Plastic-Composites
    (WPC) Mit Einer Matrix Aus Thermoplastischen Polyurethanen Zur Erzeugung Einer
    Holz-WPC-Verbundstruktur </i>.; 2024. doi:<a href="https://doi.org/978-3-8440-9390-2">978-3-8440-9390-2</a>
  apa: Richters, M. (2024). <i>Herstellung und Charakterisierung von Wood-Plastic-Composites
    (WPC) mit einer Matrix aus thermoplastischen Polyurethanen zur Erzeugung einer
    Holz-WPC-Verbundstruktur </i>. <a href="https://doi.org/978-3-8440-9390-2">https://doi.org/978-3-8440-9390-2</a>
  bibtex: '@book{Richters_2024, title={Herstellung und Charakterisierung von Wood-Plastic-Composites
    (WPC) mit einer Matrix aus thermoplastischen Polyurethanen zur Erzeugung einer
    Holz-WPC-Verbundstruktur }, DOI={<a href="https://doi.org/978-3-8440-9390-2">978-3-8440-9390-2</a>},
    author={Richters, Maximilian}, year={2024} }'
  chicago: Richters, Maximilian. <i>Herstellung Und Charakterisierung von Wood-Plastic-Composites
    (WPC) Mit Einer Matrix Aus Thermoplastischen Polyurethanen Zur Erzeugung Einer
    Holz-WPC-Verbundstruktur </i>, 2024. <a href="https://doi.org/978-3-8440-9390-2">https://doi.org/978-3-8440-9390-2</a>.
  ieee: M. Richters, <i>Herstellung und Charakterisierung von Wood-Plastic-Composites
    (WPC) mit einer Matrix aus thermoplastischen Polyurethanen zur Erzeugung einer
    Holz-WPC-Verbundstruktur </i>. 2024.
  mla: Richters, Maximilian. <i>Herstellung Und Charakterisierung von Wood-Plastic-Composites
    (WPC) Mit Einer Matrix Aus Thermoplastischen Polyurethanen Zur Erzeugung Einer
    Holz-WPC-Verbundstruktur </i>. 2024, doi:<a href="https://doi.org/978-3-8440-9390-2">978-3-8440-9390-2</a>.
  short: M. Richters, Herstellung Und Charakterisierung von Wood-Plastic-Composites
    (WPC) Mit Einer Matrix Aus Thermoplastischen Polyurethanen Zur Erzeugung Einer
    Holz-WPC-Verbundstruktur , 2024.
date_created: 2024-04-02T12:40:06Z
date_updated: 2024-04-02T12:43:05Z
department:
- _id: '9'
- _id: '367'
- _id: '321'
doi: 978-3-8440-9390-2
language:
- iso: eng
status: public
title: 'Herstellung und Charakterisierung von Wood-Plastic-Composites (WPC) mit einer
  Matrix aus thermoplastischen Polyurethanen zur Erzeugung einer Holz-WPC-Verbundstruktur '
type: dissertation
user_id: '44116'
year: '2024'
...
---
_id: '53134'
author:
- first_name: Andre
  full_name: Hirsch, Andre
  id: '27599'
  last_name: Hirsch
citation:
  ama: Hirsch A. <i>Ein Beitrag Zur Erarbeitung von Fertigungsrichtlinien Für Das
    Kunststoff Freiformen </i>.; 2024. doi:<a href="https://doi.org/978-3-8440-9409-1">978-3-8440-9409-1</a>
  apa: Hirsch, A. (2024). <i>Ein Beitrag zur Erarbeitung von Fertigungsrichtlinien
    für das Kunststoff Freiformen </i>. <a href="https://doi.org/978-3-8440-9409-1">https://doi.org/978-3-8440-9409-1</a>
  bibtex: '@book{Hirsch_2024, title={Ein Beitrag zur Erarbeitung von Fertigungsrichtlinien
    für das Kunststoff Freiformen }, DOI={<a href="https://doi.org/978-3-8440-9409-1">978-3-8440-9409-1</a>},
    author={Hirsch, Andre}, year={2024} }'
  chicago: Hirsch, Andre. <i>Ein Beitrag Zur Erarbeitung von Fertigungsrichtlinien
    Für Das Kunststoff Freiformen </i>, 2024. <a href="https://doi.org/978-3-8440-9409-1">https://doi.org/978-3-8440-9409-1</a>.
  ieee: A. Hirsch, <i>Ein Beitrag zur Erarbeitung von Fertigungsrichtlinien für das
    Kunststoff Freiformen </i>. 2024.
  mla: Hirsch, Andre. <i>Ein Beitrag Zur Erarbeitung von Fertigungsrichtlinien Für
    Das Kunststoff Freiformen </i>. 2024, doi:<a href="https://doi.org/978-3-8440-9409-1">978-3-8440-9409-1</a>.
  short: A. Hirsch, Ein Beitrag Zur Erarbeitung von Fertigungsrichtlinien Für Das
    Kunststoff Freiformen , 2024.
date_created: 2024-04-02T12:42:11Z
date_updated: 2024-04-02T12:42:13Z
department:
- _id: '9'
- _id: '367'
- _id: '321'
doi: 978-3-8440-9409-1
language:
- iso: eng
status: public
title: 'Ein Beitrag zur Erarbeitung von Fertigungsrichtlinien für das Kunststoff Freiformen '
type: dissertation
user_id: '44116'
year: '2024'
...
---
_id: '53133'
author:
- first_name: Christoph Wilhelm Theodor
  full_name: Schall, Christoph Wilhelm Theodor
  id: '44224'
  last_name: Schall
citation:
  ama: Schall CWT. <i>Materialschonende Verarbeitung von Thermoplasten Auf Wave-Schnecken</i>.;
    2024. doi:<a href="https://doi.org/978-3-8440-9354-4">978-3-8440-9354-4</a>
  apa: Schall, C. W. T. (2024). <i>Materialschonende Verarbeitung von Thermoplasten
    auf Wave-Schnecken</i>. <a href="https://doi.org/978-3-8440-9354-4">https://doi.org/978-3-8440-9354-4</a>
  bibtex: '@book{Schall_2024, title={Materialschonende Verarbeitung von Thermoplasten
    auf Wave-Schnecken}, DOI={<a href="https://doi.org/978-3-8440-9354-4">978-3-8440-9354-4</a>},
    author={Schall, Christoph Wilhelm Theodor}, year={2024} }'
  chicago: Schall, Christoph Wilhelm Theodor. <i>Materialschonende Verarbeitung von
    Thermoplasten Auf Wave-Schnecken</i>, 2024. <a href="https://doi.org/978-3-8440-9354-4">https://doi.org/978-3-8440-9354-4</a>.
  ieee: C. W. T. Schall, <i>Materialschonende Verarbeitung von Thermoplasten auf Wave-Schnecken</i>.
    2024.
  mla: Schall, Christoph Wilhelm Theodor. <i>Materialschonende Verarbeitung von Thermoplasten
    Auf Wave-Schnecken</i>. 2024, doi:<a href="https://doi.org/978-3-8440-9354-4">978-3-8440-9354-4</a>.
  short: C.W.T. Schall, Materialschonende Verarbeitung von Thermoplasten Auf Wave-Schnecken,
    2024.
date_created: 2024-04-02T12:41:05Z
date_updated: 2024-04-02T12:42:36Z
department:
- _id: '9'
- _id: '367'
- _id: '321'
doi: 978-3-8440-9354-4
language:
- iso: eng
status: public
title: Materialschonende Verarbeitung von Thermoplasten auf Wave-Schnecken
type: dissertation
user_id: '44116'
year: '2024'
...
---
_id: '53135'
author:
- first_name: Michael
  full_name: Schadomsky, Michael
  last_name: Schadomsky
citation:
  ama: Schadomsky M. <i>Experimentelle Und Simulative Analyse Der Mischwirkung in
    Einschneckenextrudern</i>.; 2024. doi:<a href="https://doi.org/978-3-8440-9334-6">978-3-8440-9334-6</a>
  apa: Schadomsky, M. (2024). <i>Experimentelle und simulative Analyse der Mischwirkung
    in Einschneckenextrudern</i>. <a href="https://doi.org/978-3-8440-9334-6">https://doi.org/978-3-8440-9334-6</a>
  bibtex: '@book{Schadomsky_2024, title={Experimentelle und simulative Analyse der
    Mischwirkung in Einschneckenextrudern}, DOI={<a href="https://doi.org/978-3-8440-9334-6">978-3-8440-9334-6</a>},
    author={Schadomsky, Michael}, year={2024} }'
  chicago: Schadomsky, Michael. <i>Experimentelle Und Simulative Analyse Der Mischwirkung
    in Einschneckenextrudern</i>, 2024. <a href="https://doi.org/978-3-8440-9334-6">https://doi.org/978-3-8440-9334-6</a>.
  ieee: M. Schadomsky, <i>Experimentelle und simulative Analyse der Mischwirkung in
    Einschneckenextrudern</i>. 2024.
  mla: Schadomsky, Michael. <i>Experimentelle Und Simulative Analyse Der Mischwirkung
    in Einschneckenextrudern</i>. 2024, doi:<a href="https://doi.org/978-3-8440-9334-6">978-3-8440-9334-6</a>.
  short: M. Schadomsky, Experimentelle Und Simulative Analyse Der Mischwirkung in
    Einschneckenextrudern, 2024.
date_created: 2024-04-02T12:44:30Z
date_updated: 2024-04-02T12:44:35Z
department:
- _id: '9'
- _id: '367'
- _id: '321'
doi: 978-3-8440-9334-6
language:
- iso: eng
status: public
title: Experimentelle und simulative Analyse der Mischwirkung in Einschneckenextrudern
type: dissertation
user_id: '44116'
year: '2024'
...
---
_id: '53529'
abstract:
- lang: eng
  text: The Fused Filament Fabrication (FFF) process is increasingly used for the
    manufacturing of individualized and complex structures, which continuously results
    in new requirements regarding the material properties. A characteristic material
    property for polymers is the low thermal conductivity. However, for specific applications,
    such as additively manufactured injection molding tool inserts, increased thermal
    conductivity is advantageous. In this study, the influence of fillers of different
    types, shapes and sizes on the resulting thermal conductivity of compounds is
    investigated. The aim is to analyze the effects of the fillers, considering the
    FFF-typical strand structure. The first step is to characterize the fillers in
    terms of shape and size. Based on this, the resulting thermal conductivity of
    specimens manufactured in the FFF process for different build orientations is
    specifically examined and compared to injection molding. This ensures that the
    process- and material-related anisotropy of the specimens is considered in the
    analysis. For the evaluation, a methodology is developed to be applied in Laser
    Flash Analysis (LFA), which allows the results to be evaluated despite the characteristic
    FFF surface structure. For the final visualization of the influence of the particle
    size on the particle orientation, Scanning Electron Microscopy (SEM) images of
    the relevant polymer compounds are made. The investigations provide a data basis
    regarding the influence of the particle type, shape and size on the thermal conductivity
    as well as for the requirement-oriented selection of fillers for processing thermally
    conductive polymer compounds in the FFF process.
author:
- first_name: Elmar
  full_name: Moritzer, Elmar
  id: '20531'
  last_name: Moritzer
- first_name: Christian Lennart
  full_name: Elsner, Christian Lennart
  id: '70729'
  last_name: Elsner
citation:
  ama: 'Moritzer E, Elsner CL. Evaluation of the Influence of Particle Type, Shape
    and Size on the Thermal Conductivity of Filled Polymers in the Fused Filament
    Fabrication Process. In: ; 2024.'
  apa: Moritzer, E., &#38; Elsner, C. L. (2024). <i>Evaluation of the Influence of
    Particle Type, Shape and Size on the Thermal Conductivity of Filled Polymers in
    the Fused Filament Fabrication Process</i>. Annual Technical Conference of the
    Society of Plastics Engineers (ANTEC 2024), St. Louis.
  bibtex: '@inproceedings{Moritzer_Elsner_2024, title={Evaluation of the Influence
    of Particle Type, Shape and Size on the Thermal Conductivity of Filled Polymers
    in the Fused Filament Fabrication Process}, author={Moritzer, Elmar and Elsner,
    Christian Lennart}, year={2024} }'
  chicago: Moritzer, Elmar, and Christian Lennart Elsner. “Evaluation of the Influence
    of Particle Type, Shape and Size on the Thermal Conductivity of Filled Polymers
    in the Fused Filament Fabrication Process,” 2024.
  ieee: E. Moritzer and C. L. Elsner, “Evaluation of the Influence of Particle Type,
    Shape and Size on the Thermal Conductivity of Filled Polymers in the Fused Filament
    Fabrication Process,” presented at the Annual Technical Conference of the Society
    of Plastics Engineers (ANTEC 2024), St. Louis, 2024.
  mla: Moritzer, Elmar, and Christian Lennart Elsner. <i>Evaluation of the Influence
    of Particle Type, Shape and Size on the Thermal Conductivity of Filled Polymers
    in the Fused Filament Fabrication Process</i>. 2024.
  short: 'E. Moritzer, C.L. Elsner, in: 2024.'
conference:
  end_date: 2024-03-07
  location: St. Louis
  name: Annual Technical Conference of the Society of Plastics Engineers (ANTEC 2024)
  start_date: 2024-03-04
date_created: 2024-04-16T07:25:06Z
date_updated: 2024-04-16T07:29:22Z
department:
- _id: '624'
- _id: '367'
- _id: '321'
- _id: '9'
language:
- iso: eng
status: public
title: Evaluation of the Influence of Particle Type, Shape and Size on the Thermal
  Conductivity of Filled Polymers in the Fused Filament Fabrication Process
type: conference
user_id: '70729'
year: '2024'
...
---
_id: '55093'
author:
- first_name: Lisa
  full_name: Tölle, Lisa
  id: '82465'
  last_name: Tölle
citation:
  ama: Tölle L. <i>Ein Beitrag zur Steuerung der Faserstaubentwicklung faserverstärkter
    Kunststoffe beim mechanischen Recycling </i>. Shaker Verlag; 2024.
  apa: Tölle, L. (2024). <i>Ein Beitrag zur Steuerung der Faserstaubentwicklung faserverstärkter
    Kunststoffe beim mechanischen Recycling </i>. Shaker Verlag.
  bibtex: '@book{Tölle_2024, title={Ein Beitrag zur Steuerung der Faserstaubentwicklung
    faserverstärkter Kunststoffe beim mechanischen Recycling }, publisher={Shaker
    Verlag}, author={Tölle, Lisa}, year={2024} }'
  chicago: Tölle, Lisa. <i>Ein Beitrag zur Steuerung der Faserstaubentwicklung faserverstärkter
    Kunststoffe beim mechanischen Recycling </i>. Shaker Verlag, 2024.
  ieee: L. Tölle, <i>Ein Beitrag zur Steuerung der Faserstaubentwicklung faserverstärkter
    Kunststoffe beim mechanischen Recycling </i>. Shaker Verlag, 2024.
  mla: Tölle, Lisa. <i>Ein Beitrag zur Steuerung der Faserstaubentwicklung faserverstärkter
    Kunststoffe beim mechanischen Recycling </i>. Shaker Verlag, 2024.
  short: L. Tölle, Ein Beitrag zur Steuerung der Faserstaubentwicklung faserverstärkter
    Kunststoffe beim mechanischen Recycling , Shaker Verlag, 2024.
date_created: 2024-07-05T13:30:05Z
date_updated: 2024-07-05T13:30:47Z
department:
- _id: '147'
- _id: '321'
extern: '1'
language:
- iso: ger
publication_identifier:
  isbn:
  - 978-3-8440-9546-3
publisher: Shaker Verlag
status: public
supervisor:
- first_name: Elmar
  full_name: Moritzer, Elmar
  id: '20531'
  last_name: Moritzer
title: 'Ein Beitrag zur Steuerung der Faserstaubentwicklung faserverstärkter Kunststoffe
  beim mechanischen Recycling '
type: dissertation
user_id: '82465'
year: '2024'
...
---
_id: '56212'
abstract:
- lang: eng
  text: <jats:title>Abstract</jats:title><jats:p>To increase the quality of computational
    results for heterogeneous materials like fiber‐reinforced composites with Prandtl–Reuss‐type
    material laws, goal‐oriented measures of the adaptive finite element method coupled
    to model adaptivity is established. The former is an adaptive mesh refinement
    on the macroscale, which allows to control the spatial discretization errors.
    The latter is an efficient combination of a numerically low cost nonuniform transformation
    field analysis (NTFA) and numerically high cost full‐field elasto‐plastic homogenization
    methods on the microscale. The present contribution deals with the application
    of the concept of downwind and upwind approximations to a goal‐oriented a posteriori
    error estimator based on duality techniques by means of reduced order homogenization
    schemes like NTFA, and with accuracy and numerical efficiency of the proposed
    goal‐oriented adaptive framework. NTFA consists of an offline phase and an online
    phase. During the offline phase, some relevant information of the micro system
    under consideration is precomputed allowing a reduced set of equations to be solved
    in the online phase. Thus, NTFA leads to a quite efficient homogenization method
    but less accurate compared to the full‐field homogenization method which is characterized
    with a high computational demand for accounting nonlinear microstructural mechanisms.
    Due to nonlinearities and time‐dependency of plasticity, the estimation of error
    transport and error generation are obtained with a backward‐in‐time dual method
    despite a high demand on memory capacity. In this contribution, the dual problem
    is solved with a forward‐in‐time dual method that allows estimating the full error
    during the resolution of the primal problem without the need for extra memory
    capacity. Several numerical examples illustrate the effectiveness of the proposed
    adaptive approach based on downwind and upwind approximations.</jats:p>
author:
- first_name: Arnold
  full_name: Tchomgue Simeu, Arnold
  id: '83075'
  last_name: Tchomgue Simeu
- first_name: Rolf
  full_name: Mahnken, Rolf
  last_name: Mahnken
citation:
  ama: Tchomgue Simeu A, Mahnken R. Mesh‐ and model adaptivity for NTFA and full‐field
    elasto‐plastic homogenization based on downwind and upwind approximations. <i>PAMM</i>.
    Published online 2024. doi:<a href="https://doi.org/10.1002/pamm.202400074">10.1002/pamm.202400074</a>
  apa: Tchomgue Simeu, A., &#38; Mahnken, R. (2024). Mesh‐ and model adaptivity for
    NTFA and full‐field elasto‐plastic homogenization based on downwind and upwind
    approximations. <i>PAMM</i>. <a href="https://doi.org/10.1002/pamm.202400074">https://doi.org/10.1002/pamm.202400074</a>
  bibtex: '@article{Tchomgue Simeu_Mahnken_2024, title={Mesh‐ and model adaptivity
    for NTFA and full‐field elasto‐plastic homogenization based on downwind and upwind
    approximations}, DOI={<a href="https://doi.org/10.1002/pamm.202400074">10.1002/pamm.202400074</a>},
    journal={PAMM}, publisher={Wiley}, author={Tchomgue Simeu, Arnold and Mahnken,
    Rolf}, year={2024} }'
  chicago: Tchomgue Simeu, Arnold, and Rolf Mahnken. “Mesh‐ and Model Adaptivity for
    NTFA and Full‐field Elasto‐plastic Homogenization Based on Downwind and Upwind
    Approximations.” <i>PAMM</i>, 2024. <a href="https://doi.org/10.1002/pamm.202400074">https://doi.org/10.1002/pamm.202400074</a>.
  ieee: 'A. Tchomgue Simeu and R. Mahnken, “Mesh‐ and model adaptivity for NTFA and
    full‐field elasto‐plastic homogenization based on downwind and upwind approximations,”
    <i>PAMM</i>, 2024, doi: <a href="https://doi.org/10.1002/pamm.202400074">10.1002/pamm.202400074</a>.'
  mla: Tchomgue Simeu, Arnold, and Rolf Mahnken. “Mesh‐ and Model Adaptivity for NTFA
    and Full‐field Elasto‐plastic Homogenization Based on Downwind and Upwind Approximations.”
    <i>PAMM</i>, Wiley, 2024, doi:<a href="https://doi.org/10.1002/pamm.202400074">10.1002/pamm.202400074</a>.
  short: A. Tchomgue Simeu, R. Mahnken, PAMM (2024).
date_created: 2024-09-23T11:23:21Z
date_updated: 2024-09-23T11:26:52Z
department:
- _id: '9'
- _id: '154'
- _id: '321'
doi: 10.1002/pamm.202400074
language:
- iso: eng
publication: PAMM
publication_identifier:
  issn:
  - 1617-7061
  - 1617-7061
publication_status: published
publisher: Wiley
quality_controlled: '1'
status: public
title: Mesh‐ and model adaptivity for NTFA and full‐field elasto‐plastic homogenization
  based on downwind and upwind approximations
type: journal_article
user_id: '85414'
year: '2024'
...