基于比例边界有限元法的Lamb波与缺陷相互作用分析

来源 :中国计算力学大会2018暨国际华人计算力学大会2018 | 被引量 : 0次 | 上传用户:candycandy726
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
  比例边界有限元法是一种半解析的数值方法,可以在没有网格细化的情况下准确描述裂纹尖端或拐角处的应力奇异性,适合对孔洞、裂缝等不规则形状的力学行为的模拟。基于比例边界有限元法对Lamb 波与板中裂纹以及凹陷的相互作用进行模拟,改变裂纹的开裂角与深度,凹陷的弧度,在激发模态对称和反对称两种情况下进行分析。
其他文献
  In this paper we present a new numerical method for solving the second order hyperbolic telegraph equations with coefficients variable in space and time.The
  接触摩擦现象普遍存在于机械系统中。某些物体间的摩擦系数并非定值,而是与接触应力相关。本文处理应力相关摩擦系数的静态接触问题。由于接触应力与摩擦系数之间的耦合
  ReBa2Cu3O7-δ(ReBCO)Bulk superconductors are able to trap large magnetic fields,and so have significant potential for application as high-field permanent ma
  In this article,we describe a novel non-intrusive reduction model(NIROM)for a Fluid-structure interaction(FSI)phenomena: landslides.In this method,a set of
  In this talk,the numerical simulation is performed to deal with the non-smooth dynamics of multi-rigid-body systems with non-ideal constrained variable topo
  There are more and more applications for composite tubes in aerospace and civil engineering as components of the structure that can subject to loading.The c
  The extended finite element method(XFEM)for crack stress intensity factors(SIFs)is presented.The generalized nodal shape functions are used in a cluster of
  Wide-scope engineering problems such as defect analysis of alternatively-placed soft and hard layers,twining deformation,and dynamic impact are taken as exa
会议
  In the fields of eXtended Isogeometric Analysis(XIGA)and topology optimization,imposing strong Dirichilet boundary conditions on the complex geometric bound
  Multiphase materials such as concrete are widely used in engineering.This kind of material is inhomogeneous and its performance parameters are discrete.For