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摘要：
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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 ,为汽车外覆盖件的钢种替代提供了依据
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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
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基金项目：
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作者简介：
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参考文献：
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1 李东升,周贤宾双曲扁壳覆盖件抗凹性的定量评估机械工程学报,34(1):69～74
2 姚贵生采用烘烤硬化钢板改善汽车车身外表零件的抗凹陷性能.宝钢技术,2000,(4):1～7
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