TY - GEN
T1 - Finite element analysis of high tensile strength steel sheet by using complex step derivative approximations
AU - Uemori, Takeshi
AU - Miyake, Hiroshi
AU - Naka, Tetsuo
AU - Takiguchi, Michihiro
AU - Yoshida, Fusahito
PY - 2015
Y1 - 2015
N2 - The framework for the complex step derivative approximations (hereafter CDSA) to calculate the consistent tangent moduli is studied. The present methods is one of the most effective methods to implement any material constitutive equations to the commercial finite element codes and does not suffer from calculation conditions and errors. In order to confirm the efficiency of CDSA, we developed the user subroutine code based on the CDSA using associative J2 flow rules with general nonlinear isotropic hardening rules that is commonly and widely utilized in commercial finite element codes. In this study, the user material subroutine 'Hypela2' of MSC.Marc (ver.2013.0.0) was utilized. The finite element calculation result by the proposal method shows a good agreement with the corresponding result by the MSC.Marc default setting. Also we apply the Yoshida-Uemori back stress model to the CDSA and evaluate this new technique to predict the deformation behavior of high tensile strength steel sheet.
AB - The framework for the complex step derivative approximations (hereafter CDSA) to calculate the consistent tangent moduli is studied. The present methods is one of the most effective methods to implement any material constitutive equations to the commercial finite element codes and does not suffer from calculation conditions and errors. In order to confirm the efficiency of CDSA, we developed the user subroutine code based on the CDSA using associative J2 flow rules with general nonlinear isotropic hardening rules that is commonly and widely utilized in commercial finite element codes. In this study, the user material subroutine 'Hypela2' of MSC.Marc (ver.2013.0.0) was utilized. The finite element calculation result by the proposal method shows a good agreement with the corresponding result by the MSC.Marc default setting. Also we apply the Yoshida-Uemori back stress model to the CDSA and evaluate this new technique to predict the deformation behavior of high tensile strength steel sheet.
KW - Complex Step Derivative Approximations
KW - Finite Element Analysis
KW - High Tensile Strength Steel Sheet
UR - http://www.scopus.com/inward/record.url?scp=84907069087&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84907069087&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/KEM.626.187
DO - 10.4028/www.scientific.net/KEM.626.187
M3 - Conference contribution
AN - SCOPUS:84907069087
SN - 9783038352266
VL - 626
T3 - Key Engineering Materials
SP - 187
EP - 192
BT - Key Engineering Materials
PB - Trans Tech Publications Ltd
T2 - 12th Asia-Pacific Conference on Engineering Plasticity and Its Application, AEPA 2014
Y2 - 1 September 2014 through 5 September 2014
ER -