平行等长度表面裂纹应力强度因子复合原则

来源 :2013年国际焊接结构疲劳断裂学术会议 | 被引量 : 0次 | 上传用户:kellermanx
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  大型化工容器中存在大量的焊缝,在焊接残余应力及腐蚀介质的联合作用下,易产生垂直于焊缝的应力腐蚀裂纹,这些裂纹相互平行,且排列密集,裂纹尖端应力之间可能出现相互干涉问题,因而有必要对该类裂纹的应力强度因子复合问题进行研究,本文采用断裂力学的方法考虑平行裂纹间的相互影响,以确定合适的裂纹复合模型。
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