The earthwork composite material of long life and low cost provides the method for solving material ageing problem in the engineering. 长寿命、低造价的土工合成材料为解决工程中的材料老化问题提供了解决方法。
Based upon the composite evaluation of fatigue damage and corrosion damage the life predication method of platform leg in service is provided. 根据疲劳与腐蚀损伤的综合评价,给出了桩腿寿命的预测方法。
The residual strength degradation model and the residual stiffness degradation model based on the degradation of stiffness of the composite lamina subjected to fatigue loadings are deduced and established by coupling the normalized fatigue life method. 以单层板疲劳的刚度退化为基础,并结合正则化疲劳寿命预测方法,推导、建立了复合材料疲劳加载过程剩余刚度退化模型及剩余强度退化模型;
Two methods are often used to deal with the questions of composite materials fatigue life is provided in the last part of the paper: the experience method of S-N curves and the method based on theory of fatigue cumulative damage. 论文最后介绍了处理复合材料疲劳寿命问题一般采用的两种方法:S-N曲线经验法和基于疲劳累积损伤理论的方法。