---
_id: '62078'
abstract:
- lang: eng
  text: 'Fiber reinforced plastics (FRP) exhibit strongly non-linear deformation behavior.
    To capture this in simulations, intricate models with a variety of parameters
    are typically used. The identification of values for such parameters is highly
    challenging and requires in depth understanding of the model itself. Machine learning
    (ML) is a promising approach for alleviating this challenge by directly predicting
    parameters based on experimental results. So far, this works mostly for purely
    artificial data. In this work, two approaches to generalize to experimental data
    are investigated: a sequential approach, leveraging understanding of the constitutive
    model and a direct, purely data driven approach. This is exemplary carried out
    for a highly non-linear strain rate dependent constitutive model for the shear
    behavior of FRP.The sequential model is found to work better on both artificial
    and experimental data. It is capable of extracting well suited parameters from
    the artificial data under realistic conditions. For the experimental data, the
    model performance depends on the composition of the experimental curves, varying
    between excellently suiting and reasonable predictions. Taking the expert knowledge
    into account for ML-model training led to far better results than the purely data
    driven approach. Robustifying the model predictions on experimental data promises
    further improvement. '
author:
- first_name: Johannes
  full_name: Gerritzen, Johannes
  id: '105344'
  last_name: Gerritzen
  orcid: 0000-0002-0169-8602
- first_name: Andreas
  full_name: Hornig, Andreas
  last_name: Hornig
- first_name: Peter
  full_name: Winkler, Peter
  last_name: Winkler
- first_name: Maik
  full_name: Gude, Maik
  last_name: Gude
citation:
  ama: 'Gerritzen J, Hornig A, Winkler P, Gude M. Direct parameter identification
    for highly nonlinear strain rate dependent constitutive models using machine learning.
    In: <i>ECCM21 - Proceedings of the 21st European Conference on Composite Materials</i>.
    Vol 3. European Society for Composite Materials (ESCM); 2024:1252–1259. doi:<a
    href="https://doi.org/10.60691/yj56-np80">10.60691/yj56-np80</a>'
  apa: Gerritzen, J., Hornig, A., Winkler, P., &#38; Gude, M. (2024). Direct parameter
    identification for highly nonlinear strain rate dependent constitutive models
    using machine learning. <i>ECCM21 - Proceedings of the 21st European Conference
    on Composite Materials</i>, <i>3</i>, 1252–1259. <a href="https://doi.org/10.60691/yj56-np80">https://doi.org/10.60691/yj56-np80</a>
  bibtex: '@inproceedings{Gerritzen_Hornig_Winkler_Gude_2024, title={Direct parameter
    identification for highly nonlinear strain rate dependent constitutive models
    using machine learning}, volume={3}, DOI={<a href="https://doi.org/10.60691/yj56-np80">10.60691/yj56-np80</a>},
    booktitle={ECCM21 - Proceedings of the 21st European Conference on Composite Materials},
    publisher={European Society for Composite Materials (ESCM)}, author={Gerritzen,
    Johannes and Hornig, Andreas and Winkler, Peter and Gude, Maik}, year={2024},
    pages={1252–1259} }'
  chicago: Gerritzen, Johannes, Andreas Hornig, Peter Winkler, and Maik Gude. “Direct
    Parameter Identification for Highly Nonlinear Strain Rate Dependent Constitutive
    Models Using Machine Learning.” In <i>ECCM21 - Proceedings of the 21st European
    Conference on Composite Materials</i>, 3:1252–1259. European Society for Composite
    Materials (ESCM), 2024. <a href="https://doi.org/10.60691/yj56-np80">https://doi.org/10.60691/yj56-np80</a>.
  ieee: 'J. Gerritzen, A. Hornig, P. Winkler, and M. Gude, “Direct parameter identification
    for highly nonlinear strain rate dependent constitutive models using machine learning,”
    in <i>ECCM21 - Proceedings of the 21st European Conference on Composite Materials</i>,
    2024, vol. 3, pp. 1252–1259, doi: <a href="https://doi.org/10.60691/yj56-np80">10.60691/yj56-np80</a>.'
  mla: Gerritzen, Johannes, et al. “Direct Parameter Identification for Highly Nonlinear
    Strain Rate Dependent Constitutive Models Using Machine Learning.” <i>ECCM21 -
    Proceedings of the 21st European Conference on Composite Materials</i>, vol. 3,
    European Society for Composite Materials (ESCM), 2024, pp. 1252–1259, doi:<a href="https://doi.org/10.60691/yj56-np80">10.60691/yj56-np80</a>.
  short: 'J. Gerritzen, A. Hornig, P. Winkler, M. Gude, in: ECCM21 - Proceedings of
    the 21st European Conference on Composite Materials, European Society for Composite
    Materials (ESCM), 2024, pp. 1252–1259.'
date_created: 2025-11-04T12:47:06Z
date_updated: 2026-02-27T06:46:21Z
doi: 10.60691/yj56-np80
intvolume: '         3'
keyword:
- Direct parameter identification
- Machine learning
- Convolutional neural networks
- Strain rate dependency
- Fiber reinforced plastics
- woven composites
- segmentation
- synthetic training data
- x-ray computed tomography
language:
- iso: eng
page: 1252–1259
project:
- _id: '130'
  name: 'TRR 285:  Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen
    Prozessketten'
- _id: '137'
  name: TRR 285 - Subproject A03
- _id: '131'
  name: TRR 285 - Project Area A
publication: ECCM21 - Proceedings of the 21st European Conference on Composite Materials
publication_identifier:
  isbn:
  - 978-2-912985-01-9
publisher: European Society for Composite Materials (ESCM)
status: public
title: Direct parameter identification for highly nonlinear strain rate dependent
  constitutive models using machine learning
type: conference
user_id: '105344'
volume: 3
year: '2024'
...
---
_id: '52816'
abstract:
- lang: eng
  text: "Manufacturing companies face the challenge of reaching required quality standards.
    Using\r\noptical sensors and deep learning might help. However, training deep
    learning algorithms\r\nrequire large amounts of visual training data. Using domain
    randomization to generate synthetic\r\nimage data can alleviate this bottleneck.
    This paper presents the application of synthetic\r\nimage training data for optical
    quality inspections using visual sensor technology. The results\r\nshow synthetically
    generated training data are appropriate for visual quality inspections."
author:
- first_name: Iris
  full_name: Gräßler, Iris
  id: '47565'
  last_name: Gräßler
  orcid: 0000-0001-5765-971X
- first_name: Michael
  full_name: Hieb, Michael
  id: '72252'
  last_name: Hieb
citation:
  ama: 'Gräßler I, Hieb M. Creating Synthetic Training Datasets for Inspection in
    Machine Vision Quality Gates in Manufacturing. In: <i>Lectures</i>. AMA Service
    GmbH, Von-Münchhausen-Str. 49, 31515 Wunstorf, Germany; 2023:253-524. doi:<a href="https://doi.org/10.5162/smsi2023/d7.4">10.5162/smsi2023/d7.4</a>'
  apa: Gräßler, I., &#38; Hieb, M. (2023). Creating Synthetic Training Datasets for
    Inspection in Machine Vision Quality Gates in Manufacturing. <i>Lectures</i>,
    253–524. <a href="https://doi.org/10.5162/smsi2023/d7.4">https://doi.org/10.5162/smsi2023/d7.4</a>
  bibtex: '@inproceedings{Gräßler_Hieb_2023, title={Creating Synthetic Training Datasets
    for Inspection in Machine Vision Quality Gates in Manufacturing}, DOI={<a href="https://doi.org/10.5162/smsi2023/d7.4">10.5162/smsi2023/d7.4</a>},
    booktitle={Lectures}, publisher={AMA Service GmbH, Von-Münchhausen-Str. 49, 31515
    Wunstorf, Germany}, author={Gräßler, Iris and Hieb, Michael}, year={2023}, pages={253–524}
    }'
  chicago: Gräßler, Iris, and Michael Hieb. “Creating Synthetic Training Datasets
    for Inspection in Machine Vision Quality Gates in Manufacturing.” In <i>Lectures</i>,
    253–524. AMA Service GmbH, Von-Münchhausen-Str. 49, 31515 Wunstorf, Germany, 2023.
    <a href="https://doi.org/10.5162/smsi2023/d7.4">https://doi.org/10.5162/smsi2023/d7.4</a>.
  ieee: 'I. Gräßler and M. Hieb, “Creating Synthetic Training Datasets for Inspection
    in Machine Vision Quality Gates in Manufacturing,” in <i>Lectures</i>, Nuremberg,
    2023, pp. 253–524, doi: <a href="https://doi.org/10.5162/smsi2023/d7.4">10.5162/smsi2023/d7.4</a>.'
  mla: Gräßler, Iris, and Michael Hieb. “Creating Synthetic Training Datasets for
    Inspection in Machine Vision Quality Gates in Manufacturing.” <i>Lectures</i>,
    AMA Service GmbH, Von-Münchhausen-Str. 49, 31515 Wunstorf, Germany, 2023, pp.
    253–524, doi:<a href="https://doi.org/10.5162/smsi2023/d7.4">10.5162/smsi2023/d7.4</a>.
  short: 'I. Gräßler, M. Hieb, in: Lectures, AMA Service GmbH, Von-Münchhausen-Str.
    49, 31515 Wunstorf, Germany, 2023, pp. 253–524.'
conference:
  end_date: 2023-05-11
  location: Nuremberg
  name: SMSI 2023. Sensor and Measurement Science International
  start_date: 2023-05-08
date_created: 2024-03-25T10:16:24Z
date_updated: 2024-03-25T11:05:53Z
department:
- _id: '152'
doi: 10.5162/smsi2023/d7.4
keyword:
- synthetic training data
- machine vision quality gates
- deep learning
- automated inspection and quality control
- production control
language:
- iso: eng
page: 253-524
publication: Lectures
publication_status: published
publisher: AMA Service GmbH, Von-Münchhausen-Str. 49, 31515 Wunstorf, Germany
quality_controlled: '1'
status: public
title: Creating Synthetic Training Datasets for Inspection in Machine Vision Quality
  Gates in Manufacturing
type: conference
user_id: '5905'
year: '2023'
...
