摘要
将影响结构疲劳断裂的不确定因素视为随机变量,用摄动随机无网格伽辽金法(PSEF-GM)对含裂纹的平面结构进行了可靠性分析,并将摄动随机无网格伽辽金法得到的分析结果与随机有限元法得到的结果进行了比较.结果证实了摄动随机无网格伽辽金法具有不需要划分单元、精度高和收敛快等特点.
The uncertainties affecting the fatigue and fracture of structure were regarded as random variables.Using perturbation stochastic element-free Galerkin method（PSEFGM） reliability analysis for a cracked plate was presented.Compared to stochastic finite element method,this method has such characteristics as high precise,element-free and fast convergence.
出处
《山东理工大学学报（自然科学版）》
CAS
2010年第5期86-89,共4页
Journal of Shandong University of Technology:Natural Science Edition
关键词
随机无网格伽辽金法
随机场
疲劳
断裂
可靠性
stochastic element-free Galerkin method
random field
fatigue
fracture
reliability
