Finite element analysis of stress concentration around a blunt crack in a cosserat elastic solid

Document Type

Article

Publication Date

1-1-1988

Abstract

The problem of a blunt edge notch of elliptic contour in a strip of Cosserat (micropolar) elastic material under tension has been analyzed via two-dimensional (plane stress) finite element analysis. Both 3-node constant strain triangular elements and 4-node isoparametric elements were used. Three cases were explored: Cosserat characteristic length much less than the crack root radius, equal to the crack root radius, and comparable to the crack length. Stress concentration factors were found to be reduced by as much as a factor of 2.6 in comparison with a classically elastic material. For the special case of a classically elastic material, the finite element results agreed well with the classical analytic solution. © 1988.

Identifier

0023962755 (Scopus)

Publication Title

Computer Methods in Applied Mechanics and Engineering

External Full Text Location

https://doi.org/10.1016/0045-7825(88)90001-1

ISSN

00457825

First Page

257

Last Page

266

Issue

3

Volume

66

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