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.
LibreCat
| DOI
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.
LibreCat
| DOI
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.
LibreCat
| DOI
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.
LibreCat
| DOI
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.
LibreCat
| DOI
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.
LibreCat
| DOI
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.
LibreCat
| DOI
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.
LibreCat
| DOI
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.
LibreCat
| DOI
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.
LibreCat
| DOI
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.
LibreCat
| DOI
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.
LibreCat
| DOI
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.
LibreCat
| DOI
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.
LibreCat
| DOI
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.
LibreCat
| DOI
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.
LibreCat
| DOI
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.
LibreCat
| DOI
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.
LibreCat
| DOI
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.
LibreCat
| DOI
2012 | Journal Article | LibreCat-ID: 62788
R. Ostwald, T. Bartel, and A. Menzel, “Simulation of phase‐transformations based on numerical minimization of intersecting Gibbs energy potentials,” PAMM, vol. 12, no. 1, pp. 277–278, 2012, doi: 10.1002/pamm.201210129.
LibreCat
| DOI
2012 | Journal Article | LibreCat-ID: 62787
R. Ostwald, T. Bartel, and A. Menzel, “Phase-transformations interacting with plasticity – A micro-sphere model applied to TRIP steel,” Computational Materials Science, vol. 64, pp. 12–16, 2012, doi: 10.1016/j.commatsci.2012.05.015.
LibreCat
| DOI
2011 | Journal Article | LibreCat-ID: 62790
R. Ostwald, T. Bartel, and A. Menzel, “Interaction of phase‐transformations and plasticity – a multi‐phase micro‐sphere approach,” PAMM, vol. 11, no. 1, pp. 417–418, 2011, doi: 10.1002/pamm.201110200.
LibreCat
| DOI
2011 | Journal Article | LibreCat-ID: 62789
D. Biermann et al., “Experimental and Computational Investigation of Machining Processes for Functionally Graded Materials,” Procedia Engineering, vol. 19, pp. 22–27, 2011, doi: 10.1016/j.proeng.2011.11.074.
LibreCat
| DOI
2010 | Journal Article | LibreCat-ID: 62791
R. Ostwald, T. Bartel, and A. Menzel, “A computational micro‐sphere model applied to the simulation of phase‐transformations,” ZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, vol. 90, no. 7–8, pp. 605–622, 2010, doi: 10.1002/zamm.200900390.
LibreCat
| DOI
2010 | Journal Article | LibreCat-ID: 62792
R. Ostwald, T. Bartel, and A. Menzel, “A micro‐sphere approach applied to the modelling of phase‐transformations,” PAMM, vol. 10, no. 1, pp. 315–316, 2010, doi: 10.1002/pamm.201010150.
LibreCat
| DOI
2009 | Journal Article | LibreCat-ID: 62793
J. Unger, R. Ostwald, and B. Svendsen, “Thermodynamic multifield modeling of electromagnetic metal forming,” International Journal of Material Forming, vol. 2, no. S1, pp. 907–910, 2009, doi: 10.1007/s12289-009-0486-9.
LibreCat
| DOI
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.
LibreCat
| DOI
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.
LibreCat
| DOI
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.
LibreCat
| DOI
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.
LibreCat
| DOI
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.
LibreCat
| DOI
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.
LibreCat
| DOI
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.
LibreCat
| DOI
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.
LibreCat
| DOI
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.
LibreCat
| DOI
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.
LibreCat
| DOI
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.
LibreCat
| DOI
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.
LibreCat
| DOI
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.
LibreCat
| DOI
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.
LibreCat
| DOI
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.
LibreCat
| DOI
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.
LibreCat
| DOI
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.
LibreCat
| DOI
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.
LibreCat
| DOI
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.
LibreCat
| DOI
2012 | Journal Article | LibreCat-ID: 62788
R. Ostwald, T. Bartel, and A. Menzel, “Simulation of phase‐transformations based on numerical minimization of intersecting Gibbs energy potentials,” PAMM, vol. 12, no. 1, pp. 277–278, 2012, doi: 10.1002/pamm.201210129.
LibreCat
| DOI
2012 | Journal Article | LibreCat-ID: 62787
R. Ostwald, T. Bartel, and A. Menzel, “Phase-transformations interacting with plasticity – A micro-sphere model applied to TRIP steel,” Computational Materials Science, vol. 64, pp. 12–16, 2012, doi: 10.1016/j.commatsci.2012.05.015.
LibreCat
| DOI
2011 | Journal Article | LibreCat-ID: 62790
R. Ostwald, T. Bartel, and A. Menzel, “Interaction of phase‐transformations and plasticity – a multi‐phase micro‐sphere approach,” PAMM, vol. 11, no. 1, pp. 417–418, 2011, doi: 10.1002/pamm.201110200.
LibreCat
| DOI
2011 | Journal Article | LibreCat-ID: 62789
D. Biermann et al., “Experimental and Computational Investigation of Machining Processes for Functionally Graded Materials,” Procedia Engineering, vol. 19, pp. 22–27, 2011, doi: 10.1016/j.proeng.2011.11.074.
LibreCat
| DOI
2010 | Journal Article | LibreCat-ID: 62791
R. Ostwald, T. Bartel, and A. Menzel, “A computational micro‐sphere model applied to the simulation of phase‐transformations,” ZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, vol. 90, no. 7–8, pp. 605–622, 2010, doi: 10.1002/zamm.200900390.
LibreCat
| DOI
2010 | Journal Article | LibreCat-ID: 62792
R. Ostwald, T. Bartel, and A. Menzel, “A micro‐sphere approach applied to the modelling of phase‐transformations,” PAMM, vol. 10, no. 1, pp. 315–316, 2010, doi: 10.1002/pamm.201010150.
LibreCat
| DOI
2009 | Journal Article | LibreCat-ID: 62793
J. Unger, R. Ostwald, and B. Svendsen, “Thermodynamic multifield modeling of electromagnetic metal forming,” International Journal of Material Forming, vol. 2, no. S1, pp. 907–910, 2009, doi: 10.1007/s12289-009-0486-9.
LibreCat
| DOI