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疲劳短裂纹群体损伤随机特征研究
Authors
乔宇
洪友士
郑亮
Publication date
1 January 2000
Publisher
Abstract
疲劳短裂纹发展过程呈现随机特征。采用裂纹数密度演化方法用于描述短裂纹群体损伤的随机行为。模拟结果给出了不同局域短裂纹随机发展的特征。两类金属材料的实验结果显示了试样表面不同视场短裂纹的数量和最大长度随载荷周次的随机变化,还给出了短裂纹总数与疲劳周次的关系。实验结果与数值模拟结果相符合
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Institute Of Mechanics,Chinese Academy of Sciences
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Last time updated on 12/02/2018