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Thermo-micro-mechanical simulation of bulk metal forming processes [article]

S. Amir H. Motaman, Konstantin Schacht, Christian Haase, Ulrich Prahl
2019 arXiv   pre-print

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2018 pre-print
arXiv:1810.11670v1 fatcat:mf62tg7jxzhkbnenb6tfufo3yi
The newly proposed microstructural constitutive model for polycrystal viscoplasticity in cold and warm regimes (Motaman and Prahl, 2019), is implemented as a microstructural solver via user-defined material subroutine in a finite element (FE) software. Addition of the microstructural solver to the default thermal and mechanical solvers of a standard FE package enabled coupled thermo-micro-mechanical or thermal-microstructural-mechanical (TMM) simulation of cold and warm bulk metal forming
more » ... ses. The microstructural solver, which incrementally calculates the evolution of microstructural state variables (MSVs) and their correlation to the thermal and mechanical variables, is implemented based on the constitutive theory of isotropic hypoelasto-viscoplastic (HEVP) finite (large) strain/deformation. The numerical integration and algorithmic procedure of the FE implementation are explained in detail. Then, the viability of this approach is shown for (TMM-) FE simulation of an industrial multistep warm forging.
arXiv:1810.11670v2 fatcat:jiitoeg5bndvpm345d2unwo5pe
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S. Amir H. Motaman, Konstantin Schacht, Christian Haase, Ulrich Prahl. "Thermo-micro-mechanical simulation of bulk metal forming processes." arXiv (2019)