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Absorbed Energy of Single Hat Model By Tailored Blanked Steel
Published May 20, 1998 by Society of Automotive Engineers of Japan in Japan
Event: JSAE Spring Conference
For frontal or rear members of automotive body, the most suitable combinations of length and strength of materials were investigated. Crash tests of hat-shape column at 4 m/s were conducted for steel sheets with length both 100 mm and 200 mm, and tensile strength ranging from 290 to 590 MPa. Dynamic tensile strength increases with increasing static one but the ratio of dynamic tensile strength to static one decreases. Tensile strength remarkably affects crash energy absorption of column. It was clarified that tailored blank technology brought reducing weight and assembly cost.