Three dimensional modified BEM analysis of forward scattering problems in elastic solids

被引：10
|
作者：
Yang, Chen [1 ]
Wang, Bin [1 ]
Qian, Zhenghua [1 ]
机构：
[1] Nanjing Univ Aeronaut & Astronaut, State Key Lab Mech & Control Mech Struct, 29 Yudao Jie, Nanjing 210016, Peoples R China
来源：
ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS | 2021年 / 122卷
关键词：
Guided wave; Forward scattering; Three-dimensional modified BEM; infinite; boundary; SINGULAR BOUNDARY METHOD; LAMB WAVE; SHAPE RECONSTRUCTION; POINT-LOAD; HOLE;
D O I：
10.1016/j.enganabound.2020.10.012
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this paper, a three-dimensional modified boundary element method (BEM) is proposed to solve the guided wave scattering problem by cavity-type flaws in an infinite plate. The aim of modification is to correct the artificial scattering introduced by inevitable modal truncation at far-field in the traditional BEM model. The far-field wave displacement fields beyond the BEM model are assumed to be the summation of orthogonal propagating guided wave patterns, and are finally incorporated into BEM equation sets as the modified items to account for the contribution of infinite boundaries traditionally omitted. With this improvement, the spurious reflected waves are eliminated. The method is formulated for a three-dimensional homogeneous, isotropic, elastic plate and its implementation is discussed in details. The formulation is finally validated for several benchmark problems.
引用
收藏
页码：145 / 154
页数：10
相关论文
共 50 条
  • [21] A Modified Born Approximation for Scattering in Isotropic and Anisotropic Elastic Solids
    Ruiju Huang
    Lester W. Schmerr
    Alexander Sedov
    Journal of Nondestructive Evaluation, 2006, 25 : 139 - 154
  • [22] Three-dimensional hybrid SAFE-BEM for elastic guided-wave scattering in a plate with finite width
    Maruyama, Taizo
    Kanda, Kosuke
    Yamada, Sumika
    ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS, 2024, 163 : 426 - 435
  • [23] Three-dimensional elastic problems of three-dimensional quasicrystals
    Akmaz, Hakan K.
    APPLIED MATHEMATICS AND COMPUTATION, 2009, 207 (02) : 327 - 332
  • [24] Error analysis applied in Taylor expansions multipole BEM for three-dimensional elasticity problems
    School of Mechanical Engineering, Yanshan University, Qinhuangdao 066004, China
    Jisuan Lixue Xuebao, 2008, 1 (112-116):
  • [25] Time-Domain BEM Analysis for Three-dimensional Elastodynamic Problems with Initial Conditions
    Li, Yuan
    Zhang, Jianming
    Xie, Guizhong
    Zheng, Xingshuai
    Guo, Shuaiping
    CMES-COMPUTER MODELING IN ENGINEERING & SCIENCES, 2014, 101 (03): : 187 - 206
  • [26] Transient dynamic analysis of 3-D gradient elastic solids by BEM
    Polyzos, D
    Tsepoura, KG
    Beskos, DE
    COMPUTERS & STRUCTURES, 2005, 83 (10-11) : 783 - 792
  • [27] BEM analysis of fracture problems in three-dimensional thermoelasticity using J-integral
    dell'Erba, DN
    Aliabadi, MH
    INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES, 2001, 38 (26-27) : 4609 - 4630
  • [28] Three-dimensional boundary element analysis for anisotropic elastic solids and its extension to piezoelectric and magnetoelectroelastic solids
    Hsu, Chung-Lei
    Hwu, Chyanbin
    Shiah, Y. C.
    ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS, 2019, 98 : 265 - 280
  • [29] Three-dimensional contact analysis of layered elastic/plastic solids with rough surfaces
    Peng, W
    Bhushan, B
    WEAR, 2001, 249 (09) : 741 - 760
  • [30] Boundary element analysis of three-dimensional exponentially graded isotropic elastic solids
    Criado, R.
    Ortiz, J.E.
    Mantič, V.
    Gray, L.J.
    París, E.
    CMES - Computer Modeling in Engineering and Sciences, 2007, 22 (02): : 151 - 164
12345