TY  - JOUR
U1  - Zeitschriftenartikel, wissenschaftlich - begutachtet (reviewed)
A1  - Metzger, Mario
A1  - Seifert, Thomas
T1  - On the exploitation of Armstrong-Frederik type nonlinear kinematic hardening in the numerical integration and finite-element implementation of pressure dependent plasticity models
JF  - Computational Mechanics
N2  - In this paper, an unconditionally stable algorithm for the numerical integration and finite-element implementation of a class of pressure dependent plasticity models with nonlinear isotropic and kinematic hardening is presented. Existing algorithms are improved in the sense that the number of equations to be solved iteratively is significantly reduced. This is achieved by exploitation of the structure of Armstrong-Frederik-type kinematic hardening laws. The consistent material tangent is derived analytically and compared to the numerically computed tangent in order to validate the implementation. The performance of the new algorithm is compared to an existing one that does not consider the possibility of reducing the number of unknowns to be iterated. The algorithm is used to implement a time and temperature dependent cast iron plasticity model, which is based on the pressure dependent Gurson model, in the finite-element program ABAQUS. The implementation is applied to compute stresses and strains in a large-scale finite-element model of a three cylinder engine block. This computation proofs the applicability of the algorithm in industrial practice that is of interest in applied sciences.
KW  - Plastizität
KW  - Druck
KW  - Finite-Elemente-Methode
KW  - Kinematik
Y1  - 2013
SN  - 0178-7675
SS  - 0178-7675
U6  - https://doi.org/10.1007/s00466-012-0828-1
DO  - https://doi.org/10.1007/s00466-012-0828-1
VL  - 52
IS  - 3
SP  - 515
EP  - 524
PB  - Springer
CY  - Berlin und Heidelberg
ER  -