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27 Publications
2025 | Journal Article | LibreCat-ID: 61138
Y. Zhan, I. Caylak, R. Ostwald, E. Barth, and E. Uhlmann, “Damage-incorporated four-step mean-field method for simulating CFRP machining: a novel algorithmic approach,” Multiscale and Multidisciplinary Modeling, Experiments and Design, vol. 8, no. 10, Art. no. 434, 2025, doi: 10.1007/s41939-025-01026-4.
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2024 | Journal Article | LibreCat-ID: 58309
R. Najafi Koopas, S. Rezaei, N. Rauter, R. Ostwald, and R. Lammering, “Comparative Analysis of Phase-Field and Intrinsic Cohesive Zone Models for Fracture Simulations in Multiphase Materials with Interfaces: Investigation of the Influence of the Microstructure on the Fracture Properties,” Applied Sciences, vol. 15, no. 1, Art. no. 160, 2024, doi: 10.3390/app15010160.
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2024 | Journal Article | LibreCat-ID: 62767
R. Najafi Koopas, S. Rezaei, N. Rauter, R. Ostwald, and R. Lammering, “Introducing a microstructure-embedded autoencoder approach for reconstructing high-resolution solution field data from a reduced parametric space,” Computational Mechanics, vol. 75, no. 4, pp. 1377–1406, 2024, doi: 10.1007/s00466-024-02568-z.
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2024 | Journal Article | LibreCat-ID: 62769
R. Najafi Koopas, S. Rezaei, N. Rauter, R. Ostwald, and R. Lammering, “Comparative Analysis of Phase-Field and Intrinsic Cohesive Zone Models for Fracture Simulations in Multiphase Materials with Interfaces: Investigation of the Influence of the Microstructure on the Fracture Properties,” Applied Sciences, vol. 15, no. 1, Art. no. 160, 2024, doi: 10.3390/app15010160.
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2024 | Journal Article | LibreCat-ID: 62770
J. Gerlach et al., “Enhancing damage prediction in bulk metal forming through machine learning-assisted parameter identification,” Archive of Applied Mechanics, vol. 94, no. 8, pp. 2217–2242, 2024, doi: 10.1007/s00419-024-02634-1.
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2024 | Journal Article | LibreCat-ID: 62768
R. Najafi Koopas, S. Rezaei, N. Rauter, R. Ostwald, and R. Lammering, “A spatiotemporal deep learning framework for prediction of crack dynamics in heterogeneous solids: Efficient mapping of concrete microstructures to its fracture properties,” Engineering Fracture Mechanics, vol. 314, Art. no. 110675, 2024, doi: 10.1016/j.engfracmech.2024.110675.
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2022 | Journal Article | LibreCat-ID: 62771
R. Schulte, C. Karca, R. Ostwald, and A. Menzel, “Machine learning-assisted parameter identification for constitutive models based on concatenated loading path sequences,” European Journal of Mechanics - A/Solids, vol. 98, Art. no. 104854, 2022, doi: 10.1016/j.euromechsol.2022.104854.
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2021 | Journal Article | LibreCat-ID: 62773
R. Schulte, R. Ostwald, and A. Menzel, “A computational framework for gradient‐enhanced damage – implementation and applications,” PAMM, vol. 20, no. 1, Art. no. e202000215, 2021, doi: 10.1002/pamm.202000215.
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2021 | Journal Article | LibreCat-ID: 62772
A. Schowtjak, R. Schulte, T. Clausmeyer, R. Ostwald, A. E. Tekkaya, and A. Menzel, “ADAPT — A Diversely Applicable Parameter Identification Tool: Overview and full-field application examples,” International Journal of Mechanical Sciences, vol. 213, Art. no. 106840, 2021, doi: 10.1016/j.ijmecsci.2021.106840.
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2020 | Journal Article | LibreCat-ID: 62777
R. Schulte, R. Ostwald, and A. Menzel, “Gradient-Enhanced Modelling of Damage for Rate-Dependent Material Behaviour—A Parameter Identification Framework,” Materials, vol. 13, no. 14, Art. no. 3156, 2020, doi: 10.3390/ma13143156.
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2020 | Journal Article | LibreCat-ID: 62778
K. Langenfeld et al., “Influence of anisotropic damage evolution on cold forging,” Production Engineering, vol. 14, no. 1, pp. 115–121, 2020, doi: 10.1007/s11740-019-00942-y.
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2020 | Journal Article | LibreCat-ID: 62776
T. Clausmeyer et al., “Prediction of Ductile Damage in the Process Chain of Caliber Rolling and Forward Rod Extrusion,” Procedia Manufacturing, vol. 47, pp. 649–655, 2020, doi: 10.1016/j.promfg.2020.04.201.
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2019 | Journal Article | LibreCat-ID: 62775
A. Schowtjak et al., “Prediction and analysis of damage evolution during caliber rolling and subsequent cold forward extrusion,” Production Engineering, vol. 14, no. 1, pp. 33–41, 2019, doi: 10.1007/s11740-019-00935-x.
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2019 | Journal Article | LibreCat-ID: 62779
R. Ostwald, E. Kuhl, and A. Menzel, “On the implementation of finite deformation gradient-enhanced damage models,” Computational Mechanics, vol. 64, no. 3, pp. 847–877, 2019, doi: 10.1007/s00466-019-01684-5.
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2017 | Conference Paper | LibreCat-ID: 62781
R. Ostwald, T. Bartel, and A. Menzel, “A THERMODYNAMICALLY CONSISTENT FINITE STRAIN MICRO-SPHERE FRAMEWORK FOR PHASE-TRANSFORMATION,” 2017, doi: 10.7712/100016.1945.10899.
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2016 | Journal Article | LibreCat-ID: 62782
R. Ostwald, T. Bartel, and A. Menzel, “Extending a finite strain hyperelastic micro‐sphere framework towards phase transformations,” PAMM, vol. 16, no. 1, pp. 381–382, 2016, doi: 10.1002/pamm.201610179.
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2015 | Journal Article | LibreCat-ID: 62783
R. Ostwald, T. Bartel, and A. Menzel, “An energy-barrier-based computational micro-sphere model for phase-transformations interacting with plasticity,” Computer Methods in Applied Mechanics and Engineering, vol. 293, pp. 232–265, 2015, doi: 10.1016/j.cma.2015.04.008.
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2014 | Journal Article | LibreCat-ID: 62785
R. Ostwald, T. Bartel, and A. Menzel, “A Gibbs‐energy‐barrier‐based computational micro‐sphere model for the simulation of martensitic phase‐transformations,” International Journal for Numerical Methods in Engineering, vol. 97, no. 12, pp. 851–877, 2014, doi: 10.1002/nme.4601.
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2014 | Journal Article | LibreCat-ID: 62786
R. Ostwald, M. Tiffe, T. Bartel, A. Zabel, A. Menzel, and D. Biermann, “Towards the multi-scale simulation of martensitic phase-transformations: An efficient post-processing approach applied to turning processes,” Journal of Materials Processing Technology, vol. 214, no. 8, pp. 1516–1523, 2014, doi: 10.1016/j.jmatprotec.2014.02.022.
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