Finite-strain thermo-viscoplasticity for case-hardening steels over a wide temperature range

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Finite-strain thermo-viscoplasticity for case-hardening steels over a wide temperature range. / Oppermann, Philip; Denzer, Ralf; Menzel, Andreas.

Proceedings in Applied Mathematics & Mechanics. Vol. 19 Wiley-VCH Verlag, 2019. s. e201900237 e201900237.

Forskningsoutput: Kapitel i bok/rapport/Conference proceedingKonferenspaper i proceeding

Harvard

Oppermann, P, Denzer, R & Menzel, A 2019, Finite-strain thermo-viscoplasticity for case-hardening steels over a wide temperature range. i Proceedings in Applied Mathematics & Mechanics. vol. 19, e201900237, Wiley-VCH Verlag, s. e201900237, Vienna, Österrike, 2019/02/18. https://doi.org/10.1002/pamm.201900237

APA

Oppermann, P., Denzer, R., & Menzel, A. (2019). Finite-strain thermo-viscoplasticity for case-hardening steels over a wide temperature range. I Proceedings in Applied Mathematics & Mechanics (Vol. 19, s. e201900237). [e201900237] Wiley-VCH Verlag. https://doi.org/10.1002/pamm.201900237

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MLA

Vancouver

Oppermann P, Denzer R, Menzel A. Finite-strain thermo-viscoplasticity for case-hardening steels over a wide temperature range. I Proceedings in Applied Mathematics & Mechanics. Vol. 19. Wiley-VCH Verlag. 2019. s. e201900237. e201900237 https://doi.org/10.1002/pamm.201900237

Author

Oppermann, Philip ; Denzer, Ralf ; Menzel, Andreas. / Finite-strain thermo-viscoplasticity for case-hardening steels over a wide temperature range. Proceedings in Applied Mathematics & Mechanics. Vol. 19 Wiley-VCH Verlag, 2019. s. e201900237

RIS

TY - GEN

T1 - Finite-strain thermo-viscoplasticity for case-hardening steels over a wide temperature range

AU - Oppermann, Philip

AU - Denzer, Ralf

AU - Menzel, Andreas

PY - 2019/11/18

Y1 - 2019/11/18

N2 - The aim of this work is the development of a thermodynamically consistent fully coupled finite-strain thermo-viscoplastic material model for metals. The model is based on a split of the free energy into a thermo-elastic, a thermo-plastic and a purely thermal part and covers nonlinear cold-work hardening and thermal softening. Nonlinear temperature dependent effects are accounted for the elastic moduli, the plastic hardening moduli, the thermal expansion, the heat capacity and the heat conductivity. Furthermore, strain rate-dependency of the current yield stress is realized using a temperature dependent nonlinear Perzyna-type viscoplastic model based on an associative flow rule. The model and its parameters are fitted against experimental data for case hardening steel 16MnCr5 (1.7131).

AB - The aim of this work is the development of a thermodynamically consistent fully coupled finite-strain thermo-viscoplastic material model for metals. The model is based on a split of the free energy into a thermo-elastic, a thermo-plastic and a purely thermal part and covers nonlinear cold-work hardening and thermal softening. Nonlinear temperature dependent effects are accounted for the elastic moduli, the plastic hardening moduli, the thermal expansion, the heat capacity and the heat conductivity. Furthermore, strain rate-dependency of the current yield stress is realized using a temperature dependent nonlinear Perzyna-type viscoplastic model based on an associative flow rule. The model and its parameters are fitted against experimental data for case hardening steel 16MnCr5 (1.7131).

KW - Thermoplasticity

KW - Material Model

KW - Thermomechanics

U2 - 10.1002/pamm.201900237

DO - 10.1002/pamm.201900237

M3 - Paper in conference proceeding

VL - 19

SP - e201900237

BT - Proceedings in Applied Mathematics & Mechanics

PB - Wiley-VCH Verlag

ER -