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Title:

p-FEM is locking-free for finite strain hyperelasticity

Author(s):
Heisserer, U.; Hartmann, S.; Yosibash, Z.; Duester, A.; Rank, E.
Abstract:
The p-version of the finite element method based on the displacement formulation is known to be free from volumetric locking beyond a moderate polynomial order for nearly-incompressible problems in linear elasticity, as was shown by Babuska Suri [4,5] and Suri [6] . Informally, locking means that the numerical solution deteriorates as a characteristic parameter approaches a critical limit – e.g. for volumetric locking in linear elasticity as the Poisson ratio ? approaches 0.5. We demonstrate tha...     »
Book / Congress title:
International Workshop on High-Order Finite Element Methods
Publisher address:
Herrsching, Munich, 17-19 May
Year:
2007
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