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Study of Damage Characteristics during Fatigue by Acoustic Emission Techniques
Author(s): 
Pages: 1394-1404
Year: Issue:  12
Journal: Journal of Ship Mechanics

Abstract: 文章考虑损伤效应,研究材料疲劳过程损伤特征及相对应的声发射活动性.导出的疲劳损伤演化方程具有与声发射活动相似的Paris公式形式,发展了研究裂纹声发射活动的损伤力学方法.又通过分析损伤对塑性区尺寸的影响,提出塑性区损伤修正模型.采用该修正模型的预测结果与实验结果基本吻合.并以声发射参数为损伤变量提出声发射活动中的损伤发展规律.经试验数据分析,文中提出的塑性区修正模型可以较好地反映声发射活动规律,损...
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