运用改进的无单元Galerkin方法分析机场道面断裂力学问题

发布时间：2018-05-18 23:41

本文选题：改进的无单元Galerkin方法 + 机场复合道面　；参考：《物理学报》2017年12期

【摘要】：在改进的无单元Galerkin方法的基础上,将能反映裂纹尖端附近应力奇异性的特征项r~(1/2)引入改进的移动最小二乘法的基函数中,将断裂力学和改进的无单元Galerkin方法结合,研究了线弹性断裂力学的改进的无单元Galerkin方法,并对含反射裂缝的机场复合道面层状体系结构进行了数值分析.本文的理论为机场复合道面断裂力学分析提供了一种新方法.
[Abstract]:On the basis of the improved element free Galerkin method, the characteristic term r~ (1/2) which can reflect the stress singularity near the crack tip is introduced into the basic function of the improved moving least square method. The fracture mechanics and the improved element free Galerkin method are combined, and the improved element free Galerkin method for the linear elastic fracture mechanics is studied. Numerical analysis of the airport composite pavement layered structure with crack propagation is carried out. The theory of this paper provides a new method for fracture mechanics analysis of airport composite pavement.
【作者单位】：上海大学上海市应用数学和力学研究所;上海大学土木工程系;
【基金】：国家自然科学基金委员会-中国民航局民航联合研究基金(批准号:U1433104)资助的课题~~
【分类号】：O241.82;O346.1

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