On Simulation of Edge Stretchability of an 800MPa Advanced High Strength Steel

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

Pathak, Nikky^1 ; Butcher, Cliff^1 ; Worswick, Michael^1

University of Waterloo, Canada^1

关键词: Advanced high strength steel;    Edge conditions;    Finite element simulations;    Fracture characterization;    Fracture strain;    Hole expansions;    Tensile specimens;    Tension tests;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/734/3/032121/pdf
DOI  :  10.1088/1742-6596/734/3/032121

来源: IOP

【 摘 要 】

In the present work, the edge stretchability of advanced high strength steel (AHSS) was investigated experimentally and numerically using both a hole expansion test and a tensile specimen with a central hole. The experimental fracture strains obtained using the hole expansion and hole tension test in both reamed and sheared edge conditions were in very good agreement, suggesting the tests are equivalent for fracture characterization. Isotropic finite-element simulations of both tests were performed to compare the stress-state near the hole edge.