论复合型脆断的周向应变因子准则

樊蔚勋

论复合型脆断的周向应变因子准则

樊蔚勋

南京航空学院

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出版历程
- 收稿日期: 1980-09-16
- 刊出日期: 1982-04-15

On the Circumferential Strain Factor Criterion of Mixed Mode Brittle Fracture

Fan Wei-xun

Nanjing Aeronautical Institute, Nanjing

摘要

摘要: 本文讨论了线弹性断裂力学的复合型断裂准则.推荐了周向应变因子准则.

Abstract: In this paper, the criteria of mixed mode brittle fracture are carefully examined. It has been shown that, the circumferential strain factor criterion is rational and safe.With the exception of opening mode, mixed mode plane strain fracture of comparatively ductile materials(metals), in general, does not follow the theory of linear elastic fracture mechanics.Like the stress intensity factor that which is concerned is playing an important role in pure opening mode crack problems. We believe that, in mixed mode crack problems, the circumferential strain factor will become a parameter to determine the rate of fatigue crack propagation per cycle, and of stress corrosion cracking per unit time.

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参考文献(13)

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