作为一个特殊情况，还给出了无穷小热粘弹性断裂力学的基本方程组。

Asa special case, the governing equations for infinitesimal thermoviscoelastic fracture mechanics are given.

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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。

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.

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采用这里得到的结果，可以很方便地立刻将线弹性断裂力学的某些结果推广到粘弹裂纹体的情形。

Using the results obtained here, we can generalize conveniently and immediately some results of the linear elastic mechanics of fracture to the cases of viscoelastic cracked bodies.

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