For crack-opening displacement tests, a specimen is notched and then fatigued by flexing to obtain a fine crack. Force is then applied until the crack begins to grow.
在裂纹扩展试验中,试样切口后使其弯曲并产生微小裂纹,在试件上继续加力直到裂纹扩大为止。
Despite the crack-up, Mia's mind is in fine form: she's learned and thoughtful; her head is stuffed with Freud, Hegel, Rilke and Blake.
虽然经历剧变,米娅的头脑依然聪慧:她博文广知,思维缜密,脑子里充满了弗洛伊德、黑格尔、里尔克以及威廉•布莱克的思想。
The short cracks deflect more severe in coarse grain structure than in fine grain one, result in roughness induced crack closure effect, therefore exhibit slow crack growth rate.
粗晶组织比细晶组织的裂纹偏折更大,粗糙度诱发闭合效应更强,因而裂纹扩展较幔。
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