In:
International Journal for Numerical Methods in Engineering, Wiley, Vol. 25, No. 1 ( 1988-01), p. 23-42
Abstract:
A very simple and reliable error estimator has recently been developed for problems of linear elasticity. 1 This leads naturally toa predication of an h ‐mesh refinement required for a given accuracy and with a suitable mesh generator 2 for an efficient adaptive process. In this paper we extend the methodology developed previously to incompresible plastic flow of metals or polymers using the ‘flow formulation’ approach. 3 The examples of application include steady state extrusion problems for which exact solutions are available and hence allow the efficiency of the error estimates to be tested as well as more complex problems of upsetting in which the mesh is updated. It is found that the estimator performs well under various circumstances and provides an economical adaptive process.
Type of Medium:
Online Resource
ISSN:
0029-5981
,
1097-0207
DOI:
10.1002/nme.1620250105
Language:
English
Publisher:
Wiley
Publication Date:
1988
detail.hit.zdb_id:
241381-4
detail.hit.zdb_id:
1480873-0
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