STUDY OF BOUNDARY ELEMENT METHOD FOR LAMB WAVE PROPAGATION AND DEFECT INTERACTION PROBLEMS
The governing equation of Lamb wave propagation and defect interaction is the wave equation in elastodynamics.The boundary element method (BEM) is suitable choice to solve scattering problems in infinite domain.Based on the Contour integral theorem,analytical expressions of singular integral were obtained in in finite part.In this paper,analytical integration of strongly singular boundary integrals equations with constant element for 2D elastodynamics BEM with constant elements.All the singular and strongly integrals can be analytical evaluation in finite part sense when the constant elements are applied to discretize the boundary.The contour integral is used to solve the singular and strongly integrals.The validity of the presented formulas has been demonstrated by the numerical examples.
Boundary element method Singular integral Analytical integral Lamb waves
Xian-hui WANG Yu-jian LIU Jian-gong YU Hui QIAO
School of Mechanical and Power Engineering, Henan Polytechnic University, Jiaozuo 454003, China School of Mathematics and information science, Henan Polytechnic University, Jiaozuo 454003, China
国际会议
石家庄
英文
392-396
2019-11-01（万方平台首次上网日期，不代表论文的发表时间）