TY - JOUR PY - 2021// TI - Axial crash fracture of 980 mpa high strength steel sheets JO - Transactions of Society of Automotive Engineers of Japan A1 - Sakaidani, Tomohiro A1 - Sato, Kentaro A1 - Tamai, Yoshikiyo A1 - Komine, Shinsuke A1 - Nakagaito, Tatsuya A1 - Urabe, Toshiaki SP - 197 EP - 202 VL - 52 IS - 1 N2 - In order to apply high tensile strength steels to the energy absorbing parts, the problem is the destabilization of the energy absorbing property due to the fracture in crash deformation. In this research, orthogonally reverse bending (ORB) fracture test is proposed to evaluate fracture behavior in axial crash deformation with consideration of press forming process. Axial crash tests and ORB fracture tests are curried out for various materials of 980 MPa class, including Dual Phase and Transformation-induced plasticity steels to clarify the mechanism of crash behavior. The experimental results shows that the ORB fracture test is able to simulate the axial crash fracture of press formed parts.

Language: ja

LA - ja SN - 0287-8321 UR - http://dx.doi.org/10.11351/jsaeronbun.52.197 ID - ref1 ER -