检索结果-南通市图书馆

Application of the extended traction boundary element-free method to the fracture of two-dimensional infinite magnetoelectroelastic solid

引用

Science China(Physics,Mechanics & Astronomy) 2011年第6期54卷 1141-1153页

作者： FENG WenJie LI YanSong HAN Xu XU ZengHe Department of Engineering Mechanics Shijiazhuang Tiedao UniversityShijiazhuang 050043China College of Civil Engineering Hebei University of EngineeringHandan 056038China Institute of Engineering Mechanics Northeastern UniversityShenyang 110004China State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body Hunan UniversityChangsha 410082China

A novel extended traction boundary element-free method is proposed to analyze the crack problems of two-dimensional infinite magnetoelectroelastic *** extended traction boundary integral equation only involving Cauchy singularity is firstly ***,the extended dislocation densities on the crack surface are expressed as the combination of a characteristic term and unknown weight functions,and the radial point interpolation method is adopted to approximate the unknown weight *** numerical scheme of the extended traction boundary element-free method is further established,and an effective numerical procedure is used to evaluate the Cauchy singular ***,the stress intensity factor,electric displacement intensity factor and magnetic induction intensity factor are computed for some selected crack problems that contain straight,curved and branched cracks,and good numerical results are *** the same time,the fracture properties of these crack problems are discussed.

关键词： boundary element-free method boundary integral equation radial point interpolation method crack problem magnetoelectroelastic materials

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Meshless acoustic analysis using a weakly singular Burton-Miller boundary integral formulation

引用

Applied Mathematics and Mechanics(English Edition) 2020年第12期41卷 1897-1914页

作者： Linchong CHEN Xiaolin LI School of Mathematics and Information Engineering Chongqing University of EducationChongqing 400065China School of Mathematical Sciences Chongqing Normal UniversityChongqing 400047China

The Burton-Miller boundary integral formulation is solved by a complex variable boundary element-free method(CVBEFM)for the boundary-only meshless analysis of acoustic problems with arbitrary *** regularize both strongly singular and hypersingular integrals and to avoid the computation of the solid angle and its normal derivative,a weakly singular Burton-Miller formulation is derived by considering the normal derivative of the solid angle and adopting the singularity subtraction *** facilitate the implementation of the CVBEFM and the approximation of gradients of the boundary variables,a stabilized complex variable moving least-square approximation is selected in the meshless discretization *** results show the accuracy and efficiency of the present CVBEFM and reveal that the method can produce satisfactory results for all wavenumbers,even for extremely large wavenumbers such as k=10000.

关键词： meshless method complex variable moving least-square approximation boundary element-free method Burton-Miller formulation regularization high frequency acoustic problem large wavenumber

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：