基于累积损伤理论对金属-复合材料单钉连接件强度和刚度进行研究.分析层合板钉孔挤压损伤后剩余刚度的变化规律,提出在挤压变形和强度计算中,针对基体和纤维压缩失效,采用相关模量先突减、然后逐渐提升的刚度修正方法.分析获得钉-孔挤压区基体和纤维压缩失效后的材料刚度(模量)参数随压缩应变量变化的规律,用来模拟连接结构的挤压强度和刚度行为,与试验结果相吻合.
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