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摘要: 从理论上推导了材料中空洞分布函数，阐明两种材料，Fe和Ta样品，受不同飞片速度冲击后，其空洞分布的相似性。从文献[5]中又发现，脆性材料的裂纹分布也具有同样的相似性，这说明理论分布函数可能具有普遍性。最后提出了这种性质的广阔应用前景。Abstract: The voids distribution function in ductile metal is derived theoretically in this paper, and verifications of the Fe and Ta recovered samples are made under dynamic loading. Their voids distribution is on the same curve, but the scales of voids number are different. This demonstrates their similarity. On the other band, from Ref. [5], the results of brittle material under static loading, also appear the same property. Thus, the author concludes that it is possible that all materials may have the same similarity. Finally, the prospects of using this property are discussed.
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Key words:
- dynamical fracture /
- material damage /
- similarity
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Curran D R, Seaman L, Shockey D A. Physics Reports, 1987, 147(5-6): 253. Johnson J N, Addessio F L. J Appl Phys, 1988, 64(12): 6699. 白以龙, 柯孚久, 夏蒙棼. 力学学报, 1991, 23(3): 276. Grady D E, Kipp M E. J Appl Phys, 1985, 56(3): 1210-1222. Carpinteri A, Yang G P. Theoretical and Applied Fracture Mechanics, 1996, 25: 73-81. -
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