Strain smoothing for compressible and nearly-incompressible finite elasticity

详细信息    查看全文

• 作者：Chang-Kye Lee^a ; L. Angela Mihai^b ; Jack S. Hale^c ; Pierre Kerfriden^a ; Sté ; phane P.A. Bordas^c ; ^a ;
• 关键词：Strain smoothing ; Smoothed finite element method (S-FEM) ; Near-incompressibility ; Large deformation ; Volumetric locking ; Mesh distortion sensitivity
• 刊名：Computers & Structures
• 出版年：2017
• 出版时间：1 April 2017
• 年：2017
• 卷：182
• 期：Complete
• 页码：540-555
• 全文大小：2390 K
• 卷排序：182

文摘

Strain smoothing is introduced in the framework of nearly-incompressible finite elasticity. The method alleviates shear locking. The method is expressed in the primal displacement unknowns only. The method is robust when using severely distorted meshes. Bubble functions are introduced in the displacement space to ensure stability.