NONCONFORMING MIXED ELEMENTS FOR ELASTICITY
NONCONFORMING MIXED ELEMENTS FOR ELASTICITY
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DOI:
10.1142/s0218202503002507
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发表时间:
2003-03
影响因子:
3.5
通讯作者:
D. Arnold;R. Winther
中科院分区:
文献类型:
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作者:
D. Arnold;R. Winther
We construct first-order, stable, nonconforming mixed finite elements for plane elasticity and analyze their convergence. The mixed method is based on the Hellinger–Reissner variational formulation in which the stress and displacement fields are the primary unknowns. The stress elements use polynomial shape functions but do not involve vertex degrees of freedom.