松弛系数 meaning in English
coefficient of relaxation
coefficientofrelaxation
Examples
- Specifically , according to the w - w five parameters failure theory , the fracture criterion of crack is established , and the state of crack ( open or close ) is judged by the values of the crack strain . combining the two points , the predict - model about the failure of concrete material is established . this predict - model can predict 16 failure forms , and basing the different failure form predicted after crack , the stress - strain relationship matrix of concrete material is adjusted
具体来讲，根据w - w的五参数混凝土破坏理论，建立混凝土的开裂准则，根据开裂应变值来判断裂缝是张开还是闭合，从而在两者基础上建立了裂缝的开裂预测模式，总共有16种开裂模式；裂后根据具体的开裂模式及残余抗剪能力来调整混凝土的本构关系矩阵，即用等效刚度代替原有刚度，考虑到垂直于裂缝方向的刚度为零，这样会使裂后的总刚出现病态，为此文中通过引用松弛系数来对出现裂缝的单元进行预处理，一方面可解决因过大的舍入误差导致计算结果的不可信问题，另一方面就是可加速收敛。