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1·The typical quantitative models on the crack closure are introduced and commented as well.

此外，还就疲劳裂纹闭合现象的几种有代表性的定量模型做了介绍和评论。

2·The crack closure is dynamically measured by means of interferometric strain-displacement gauge(ISDG).

用激光干涉应变-位移测量仪（ISDG）进行了裂纹闭合点的高精度动态测量。

3·Compressive residual stress increases the crack closure effect at the notch and may lead to a non-pr...

残余压应力使缺口处裂纹闭合力增大甚至可出现非扩展裂纹。

4·The fatigue crack closure and fatigue crack growth rate in the high strain region of SCT specimen are studied.

本文研究了SCT试样高应变区的疲劳裂纹闭合效应和疲劳裂纹扩展速率。

5·The results turn out to be that the short cracks exhibit severe crack deflection and week crack closure effect.

试验和分析结果表明，短裂纹扩展的偏折强烈，裂纹闭合效应较小。

6·Compressive residual stress increases the crack closure effect at the notch and may lead to a non-propagating crack.

残余压应力使缺口处裂纹闭合力增大甚至可出现非扩展裂纹。

7·The simulating results have indicated that: the crack closure effect is obviously influenced by the fatigue crack length.

在建立裂纹扩展模型的时候，要考虑到裂纹长度对裂纹闭合效应的影响。

8·Having excluded the effect of welding residual tresses on crack closure, fatigue crack growth rates of the welded join...

在排除焊接残余应力导致的裂纹闭合效应后，焊缝及热影响区疲劳裂纹扩展速率与基材相当。

9·The high fatigue properties were found to be related with higher crack closure stress, rough fracture surface and tortuousity of crack path.

较高的疲劳性能与裂纹尖端闭合应力、断口表面粗糙度以及裂纹扩展路径弯折程度有关。

10·The strain energy release rate of the crack propagation was calculated by using virtual crack closure technique, and fatigue life was forecasted.

采用虚拟裂纹闭合技术计算裂纹扩展的应变能释放率，并对裂纹扩展寿命进行计算。