A nonlinear and continuous strength degradation model is presented from the view point that fatigue damage process is the process during which material static strength degrades constantly.
从疲劳过程本质上是材料静强度不断退化的过程的观点出发，建立了一个非线性的、连续的强度退化模型。
To obtain enough accuracy parameters to be estimated, this linear model must meet two preconditions:First, the nonlinear strength of nonlinear models is enough weak;
这种线性化近似模型要满足两个前提方能解算出足够精度的待估参数：第一，非线性函数模型的非线性强度要足够弱；
The nonlinear finite element analysis and model analysis for working mechanism are performed, and its result is validated by on-site strength test.
最后对该有限元分析模型的分析结果进行了生产实践强度的试验验证。
应用推荐