韧性断裂裂纹尖端的物理特征和力学行为
doi: 10.6052/1000-0992-1989-3-J1989-040 cstr: 32046.14.1000-0992-1989-3-J1989-040
PHYSICAL CHARACTERISTICS AND MECHANICAL BEHAVIOUR AT CRACK TIP IN DUCTILE FRACTURE
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摘要: 本文综述了金属材料发生韧性断裂的裂尖钝化,孔洞成核和长大,孔洞-孔洞或孔洞-裂尖汇合导致裂纹扩展的物理特征,和描述这些特征的本构理论及物理模型。Abstract: The ductile fracture characterstics which include crack-tip blunting, and void initiation, growth and its coalescence with voids or blunted crack-tip and the constitutive theories and fracture models for the corresponding physical behaviour are reviewed in this paper.
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