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27 Publications
2025 | Journal Article | LibreCat-ID: 61138
Zhan, Y., Caylak, I., Ostwald, R., Barth, E., & Uhlmann, E. (2025). Damage-incorporated four-step mean-field method for simulating CFRP machining: a novel algorithmic approach. Multiscale and Multidisciplinary Modeling, Experiments and Design, 8(10), Article 434. https://doi.org/10.1007/s41939-025-01026-4
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2024 | Journal Article | LibreCat-ID: 58309
Najafi Koopas, R., Rezaei, S., Rauter, N., Ostwald, R., & Lammering, R. (2024). 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, 15(1), Article 160. https://doi.org/10.3390/app15010160
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2024 | Journal Article | LibreCat-ID: 62767
Najafi Koopas, R., Rezaei, S., Rauter, N., Ostwald, R., & Lammering, R. (2024). Introducing a microstructure-embedded autoencoder approach for reconstructing high-resolution solution field data from a reduced parametric space. Computational Mechanics, 75(4), 1377–1406. https://doi.org/10.1007/s00466-024-02568-z
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2024 | Journal Article | LibreCat-ID: 62769
Najafi Koopas, R., Rezaei, S., Rauter, N., Ostwald, R., & Lammering, R. (2024). 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, 15(1), Article 160. https://doi.org/10.3390/app15010160
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2024 | Journal Article | LibreCat-ID: 62770
Gerlach, J., Schulte, R., Schowtjak, A., Clausmeyer, T., Ostwald, R., Tekkaya, A. E., & Menzel, A. (2024). Enhancing damage prediction in bulk metal forming through machine learning-assisted parameter identification. Archive of Applied Mechanics, 94(8), 2217–2242. https://doi.org/10.1007/s00419-024-02634-1
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2024 | Journal Article | LibreCat-ID: 62768
Najafi Koopas, R., Rezaei, S., Rauter, N., Ostwald, R., & Lammering, R. (2024). 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, 314, Article 110675. https://doi.org/10.1016/j.engfracmech.2024.110675
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2022 | Journal Article | LibreCat-ID: 62771
Schulte, R., Karca, C., Ostwald, R., & Menzel, A. (2022). Machine learning-assisted parameter identification for constitutive models based on concatenated loading path sequences. European Journal of Mechanics - A/Solids, 98, Article 104854. https://doi.org/10.1016/j.euromechsol.2022.104854
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2021 | Journal Article | LibreCat-ID: 62773
Schulte, R., Ostwald, R., & Menzel, A. (2021). A computational framework for gradient‐enhanced damage – implementation and applications. PAMM, 20(1), Article e202000215. https://doi.org/10.1002/pamm.202000215
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2021 | Journal Article | LibreCat-ID: 62772
Schowtjak, A., Schulte, R., Clausmeyer, T., Ostwald, R., Tekkaya, A. E., & Menzel, A. (2021). ADAPT — A Diversely Applicable Parameter Identification Tool: Overview and full-field application examples. International Journal of Mechanical Sciences, 213, Article 106840. https://doi.org/10.1016/j.ijmecsci.2021.106840
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2020 | Journal Article | LibreCat-ID: 62777
Schulte, R., Ostwald, R., & Menzel, A. (2020). Gradient-Enhanced Modelling of Damage for Rate-Dependent Material Behaviour—A Parameter Identification Framework. Materials, 13(14), Article 3156. https://doi.org/10.3390/ma13143156
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2020 | Journal Article | LibreCat-ID: 62778
Langenfeld, K., Schowtjak, A., Schulte, R., Hering, O., Möhring, K., Clausmeyer, T., Ostwald, R., Walther, F., Tekkaya, A. E., & Mosler, J. (2020). Influence of anisotropic damage evolution on cold forging. Production Engineering, 14(1), 115–121. https://doi.org/10.1007/s11740-019-00942-y
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2020 | Journal Article | LibreCat-ID: 62776
Clausmeyer, T., Schowtjak, A., Wang, S., Gitschel, R., Hering, O., Pavliuchenko, P., Lohmar, J., Ostwald, R., Hirt, G., & Tekkaya, A. E. (2020). Prediction of Ductile Damage in the Process Chain of Caliber Rolling and Forward Rod Extrusion. Procedia Manufacturing, 47, 649–655. https://doi.org/10.1016/j.promfg.2020.04.201
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2019 | Journal Article | LibreCat-ID: 62775
Schowtjak, A., Wang, S., Hering, O., Clausmeyer, T., Lohmar, J., Schulte, R., Ostwald, R., Hirt, G., & Tekkaya, A. E. (2019). Prediction and analysis of damage evolution during caliber rolling and subsequent cold forward extrusion. Production Engineering, 14(1), 33–41. https://doi.org/10.1007/s11740-019-00935-x
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2019 | Journal Article | LibreCat-ID: 62779
Ostwald, R., Kuhl, E., & Menzel, A. (2019). On the implementation of finite deformation gradient-enhanced damage models. Computational Mechanics, 64(3), 847–877. https://doi.org/10.1007/s00466-019-01684-5
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2017 | Conference Paper | LibreCat-ID: 62781
Ostwald, R., Bartel, T., & Menzel, A. (2017). A THERMODYNAMICALLY CONSISTENT FINITE STRAIN MICRO-SPHERE FRAMEWORK FOR PHASE-TRANSFORMATION. Proceedings of the VII European Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS Congress 2016). https://doi.org/10.7712/100016.1945.10899
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2016 | Journal Article | LibreCat-ID: 62782
Ostwald, R., Bartel, T., & Menzel, A. (2016). Extending a finite strain hyperelastic micro‐sphere framework towards phase transformations. PAMM, 16(1), 381–382. https://doi.org/10.1002/pamm.201610179
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2015 | Dissertation | LibreCat-ID: 62784
Ostwald, R. (2015). Modelling and simulation of phase transformations in elasto-plastic polycrystals. LibreCat University. https://doi.org/10.17877/DE290R-155
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2015 | Journal Article | LibreCat-ID: 62783
Ostwald, R., Bartel, T., & Menzel, A. (2015). An energy-barrier-based computational micro-sphere model for phase-transformations interacting with plasticity. Computer Methods in Applied Mechanics and Engineering, 293, 232–265. https://doi.org/10.1016/j.cma.2015.04.008
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2014 | Journal Article | LibreCat-ID: 62785
Ostwald, R., Bartel, T., & Menzel, A. (2014). A Gibbs‐energy‐barrier‐based computational micro‐sphere model for the simulation of martensitic phase‐transformations. International Journal for Numerical Methods in Engineering, 97(12), 851–877. https://doi.org/10.1002/nme.4601
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2014 | Journal Article | LibreCat-ID: 62786
Ostwald, R., Tiffe, M., Bartel, T., Zabel, A., Menzel, A., & Biermann, D. (2014). Towards the multi-scale simulation of martensitic phase-transformations: An efficient post-processing approach applied to turning processes. Journal of Materials Processing Technology, 214(8), 1516–1523. https://doi.org/10.1016/j.jmatprotec.2014.02.022
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