汽车钢板抗凹性试验方法及其应用

Testing method of the autosheet's dent resistance and its application

通过对汽车钢板抗凹性试验方法的研究 ,表明基于一定预变形下的胀形件载荷 -挠度曲线而提出的抗凹性指标。局部凹陷抗力、抗凹刚度和起伏载荷 ,反映了胀形件抵抗变形、保持形状的能力。同时测定的不同强度钢板抗凹性试验结果 。

The study on the testing method of the autosheet's dent resistance shows that such dent resistance indexes as denting resistance, sinking stiffness and oil canning load indicate the prestrained parts' capability to resist the dent and maintain the shape. These indexes are derived from the prestrained parts' load displacement curve. Meanwhile the testing result of the autosheet's dent resistance of various strength provides the basis for the substitution of the steel of automobile outer panel