The new-type traction boundary integral equations developed by Huand with no hyper- singular integral are applied to analysis of 3Dfinite cracked bodies. A numerical algorithm for general 3D problemsand a semi-analyti...The new-type traction boundary integral equations developed by Huand with no hyper- singular integral are applied to analysis of 3Dfinite cracked bodies. A numerical algorithm for general 3D problemsand a semi-analytical one for axisymmetric problems are presented.Some examples of thick plates and cylindrical columns includingpenny-shaped crack(s), and rectangular plates including an ellipticalcrack normal to the surface are analyzed. The comparison betweenpresent results and those in literature shows the high accuracy andeffectiveness of the present method.展开更多
In this paper, the displacement discontinu ity fundamental solution (DDFS) corresponding to the unit concentrated displacem ent discontinuity for three dimensional (3D) non_local elasticity under symmetri cal conditio...In this paper, the displacement discontinu ity fundamental solution (DDFS) corresponding to the unit concentrated displacem ent discontinuity for three dimensional (3D) non_local elasticity under symmetri cal condition is obtained. Based on the displacement discontinuity boundary inte gralequation (DDBIE) and boundary_element method (DDBEM) of local (classical) e lasticity, a method of analysis of crack in 3D non_local elasticity with wide ap plication is proposed with the DDFS. Through the method, several import ant problems of fracture mechanics are analysed.展开更多
基金国家自然科学基金，the Foundation of Key Laboratory of the Ministry of Education, Tongji University
文摘The new-type traction boundary integral equations developed by Huand with no hyper- singular integral are applied to analysis of 3Dfinite cracked bodies. A numerical algorithm for general 3D problemsand a semi-analytical one for axisymmetric problems are presented.Some examples of thick plates and cylindrical columns includingpenny-shaped crack(s), and rectangular plates including an ellipticalcrack normal to the surface are analyzed. The comparison betweenpresent results and those in literature shows the high accuracy andeffectiveness of the present method.
文摘In this paper, the displacement discontinu ity fundamental solution (DDFS) corresponding to the unit concentrated displacem ent discontinuity for three dimensional (3D) non_local elasticity under symmetri cal condition is obtained. Based on the displacement discontinuity boundary inte gralequation (DDBIE) and boundary_element method (DDBEM) of local (classical) e lasticity, a method of analysis of crack in 3D non_local elasticity with wide ap plication is proposed with the DDFS. Through the method, several import ant problems of fracture mechanics are analysed.
