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lidongze

金虫 (小有名气)

[求助] 翻译

Roughness-induced crack closure depends not only on deflection angles but also on height distributions of the crack paths as discussed in the preceding subsections. In addition, it depends on fracture mode. As a consequence, lower nominal crack growth rates are
observed in CL than in FL (Fig. 9a) due to higher level of crack closure attributed to higher SH in CL. Furthermore, in spite of the low intrinsic crack growth rates,the high nominal crack growth rates are observed in EQ due to a low level of crack closure. This is attributed to the influence of ductile fracture areas.
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wxb0626

木虫 (正式写手)

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lidongze(金币+15, 翻译EPI+1): 2012-03-10 12:54:12
正如前面的小节中讨论的那样,粗糙度诱发的裂纹闭合不仅取决于偏转角,而且取决于裂纹路径的高度分布。此外,还取决于断裂模式。因此,和在FL中相比,在CL中观察到了较低的名义裂纹扩展速率(图 9a),这是由于在CL中存在着可归因于较高SH的较高水平的裂纹闭合。此外,尽管内在裂纹扩展速率较低,但在EQ中观察到了由低水平裂纹闭合造成的高名义裂纹扩展速率,这可以归因于韧性断裂区的影响。
2楼2012-03-09 20:41:59
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