A Semi-Automatic Transition Mesh Generator Utilizing Constraint Equations


This paper on "A Semi-Automatic Transition Mesh Generator Utilizing Constraint Equations" was presented at the International Conference on Quality Assurance and Standards in Finite Element Analysis - 22-25 May 1989, Stratford-upon-Avon, England.

Summary

An essential requirement in the finite element mesh idealization of a component is the provision of a fine mesh in critical areas where rapid stress changes occur. Since it is uneconomic to use a fine mesh throughout the entire component, transition meshes must be introduced to allow variations in mesh density. Transition meshes usually do not perform as well as a regular mesh because they contain triangular and/or distorted quadrilateral elements.
An alternative technique to maintain connectivity between regions of different element density is to use multipoint constraint equations. This paper presents a two-dimensional semi-automatic mesh generator which uses constraint equations to provide transitions in mesh density. The meshes produced by this method are compared with equivalent meshes from conventional transition mesh generators.

Document Details

Reference

NWC89_2

Authors

Shannon. J;Armstrong. C;Robinson. D

Language

English

Type

Paper

Date

1989-05-22

Organisations

Queen's University

Region

Global

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