Development of the subroutine library 'UMMDp' for anisotropic yield functions commonly applicable to commercial FEM codes

10th International Conference and Workshop on Numerical Simulation of 3D Sheet Metal Forming Processes

Takizawa, Hideo^1 ; Kuwabara, Toshihiko^2 ; Oide, Kai^3 ; Yoshida, Junji^4

Mechanical Engineering Dept., Nippon Institute of Technology, 4-1 Gakuendai Miyashiro, Saitama

345-8501, Japan^1

Division of Advanced Mechanical Systems Engineering, Tokyo University of Agriculture and Technology, 2-24-26, Naka-cho, Koganei, Tokyo

184-8588, Japan^2

Mechanical Design and Analysis Co., 1-40-2, Fuda, Chofu, Tokyo

182-0024, Japan^3

Dept. of Civil and Environmental Engineering, University of Yamanashi, 4-3-11, Takeda, Yamanashi, Kofu

400-8511, Japan^4

关键词: Anisotropic yield functions;    Commercial finite element codes;    Material modeling;    Material models;    User subroutine;    Yield function;    Yield surface;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/734/3/032028/pdf
DOI  :  10.1088/1742-6596/734/3/032028

来源: IOP

【 摘 要 】

Numerous types of yield functions have been proposed to describe the shape of a realistic yield surface. Major commercial finite element codes include few anisotropic functions. Alternatively, the codes allow users to implement material models through user- subroutines. We develop the Unified Material Model Driver for Plasticity (UMMDp) subroutine library, which enables users to implement an arbitrary yield function easily. In this paper, the framework of the UMMDp is presented and its availabilities is shown through examples of sheet metal forming analyses.