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A new stabilization technique for finite elements in non-linear elasticity

✍ Scribed by S. Reese; M. Küssner; B. D. Reddy

Publisher
John Wiley and Sons
Year
1999
Tongue
English
Weight
495 KB
Volume
44
Category
Article
ISSN
0029-5981

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✦ Synopsis

In the present contribution, an innovative stabilization technique for two-dimensional low-order ÿnite elements is presented. The new approach results in an element formulation that is much simpler than the recently proposed enhanced strain element formulation, yet which gives results of at least the same quality. An important feature in the regime of large deformations is the stability of the element, which is addressed in detail. The main advantages of the new formulation are, besides its simplicity, its computational e ciency and robust behaviour. Only three history variables have to be stored, making this stabilization concept particularly interesting for large-scale problems.

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