MESH ADAPTATIONS FOR LINEAR 2D FINITE-ELEMENT DISCRETIZATIONS IN STRUCTURAL MECHANICS, ESPECIALLY IN THIN SHELL ANALYSIS

[摘要] In this paper we describe an automatic refinement of finite-element meshes in structural analysis including shell problems. At first the adaptation to curved boundaries and surfaces is discussed. Central point is a topological description, which is independent of the discretization. The second part deals with local refinements adapted to the solution by error estimation. Three a posteriori indicators are compared by examples.

[发布日期] 1991-08-20

[关键词] STRUCTURAL MECHANICS;SHELL ANALYSIS;MESH ADAPTATION;A POSTERIORI CRITERIA