車体衝突時の鋼板エッジ破断簡易評価手法の開発(第2報)

概要

論文の詳細を見る
In the vehicle collisions, fractures can be occurred from the edge of steel sheet parts. And it is known that the fracture limit on the edge of steel sheet is much affected by the edge processing conditions. In this report, 3 points bending tests and their FEM simulations of hat channel specimens with hole which modeled for B-pillar were conducted. As the results, the fracture elongation of the hat channels can be predicted by correlation equation studied by the small tensile specimen with hole in the first report. And the effects of crash speed on the fracture limit were also studied.