摘要
结合基于基体和纤维断裂能的Peter Linde失效准理论完成了层合板疲劳损伤子程序的开发,子程序可调整层合板刚度降参量k的设定来有效减少层合板疲劳计算量。进行了子程序的可靠性验证。从最终的损伤演化分析结果来看,层合板疲劳损伤子程序不仅可较好完成层合板疲劳损伤模拟及寿命估算,且能给出不同循环周次的损伤状态。
The fatigue damage UMAT （FDU） of abaqus was employed in the present thesis combining matrix and fibre damage theory of Peter Linde. The computational complexity of laminates fatigue damage evolution decreases significantly by the adjustment of stiffness reduction pamameter k in FDU. The comparison results of FDU show a good agreement with the test results which can prove its reliability. The matrix and fibre damage evolution of full fatigue life are given and the fatigue lifetime is estimated from FDU results.
出处
《热加工工艺》
CSCD
北大核心
2013年第10期129-132,共4页
Hot Working Technology
基金
航空科学基金资助项目(2010ZF56016)
河南省基础与前沿基金资助项目(072300440080
11230041003)
河南省重点科技攻关资助项目(072102190013
082102210016)
关键词
层合板
断裂能
疲劳损伤
寿命估算
laminates
fracture energy
fatigue damage
fatigue life estimation
