期刊文献+
共找到1篇文章
< 1 >
每页显示 20 50 100
A 3D shell-like approach using element-free Galerkin method for analysis of thin and thick plate structures 被引量:6
1
作者 Yu Yin lin-quan yao Yang Cao 《Acta Mechanica Sinica》 SCIE EI CAS CSCD 2013年第1期85-98,共14页
A new efficient meshless method based on the element-free Galerkin method is proposed to analyze the static deformation of thin and thick plate structures in this paper. Using the new 3D shell-like kinematics in analo... A new efficient meshless method based on the element-free Galerkin method is proposed to analyze the static deformation of thin and thick plate structures in this paper. Using the new 3D shell-like kinematics in analogy to the solid-shell concept of the finite element method, discretization is carried out by the nodes located on the upper and lower surfaces of the structures. The approximation of all unknown field variables is carried out by using the moving least squares (MLS) approximation scheme in the in-plane directions, while the linear interpolation is applied through the thickness direction. Thus, different boundary conditions are defined only using displacements and penalty method is used to enforce the essential boundary conditions. The constrained Galerkin weak form, which incorporates only dis- placement degrees of freedom (d.o.f.s), is derived. A modified 3D constitutive relationship is adopted in order to avoid or eliminate some self-locking effects. The numeric efficiency of the proposed meshless formulation is illustrated by the numeric examples. 展开更多
关键词 Meshless methods 3D shell-like Moving least squares approximation SELF-LOCKING Thin plate
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部