In:
Engineering Computations, Emerald, Vol. 13, No. 1 ( 1996-02-01), p. 103-123
Abstract:
Considers the problem of stability of the enhanced strain elements in the presence of large deformations. The standard orthogonality condition between the enhanced strains and constant stresses ensures satisfaction of the patch test and convergence of the method in case of linear elasticity. However, this does not hold in the case of large deformations. By analytic derivation of the element eigenvalues in large strain states additional orthogonality conditions can be derived, leading to a stable formulation, regardless of the magnitude of deformations. Proposes a new element based on a consistent formulation of the enhanced gradient with respect to new orthogonality conditions which it retains with four enhanced modes volumetric and shear locking free behaviour of the original formulation and does not exhibit hour‐glassing for large deformations.
Type of Medium:
Online Resource
ISSN:
0264-4401
DOI:
10.1108/02644409610111001
Language:
English
Publisher:
Emerald
Publication Date:
1996
detail.hit.zdb_id:
2009342-1
Permalink
