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Hybrid Semiloof elements for plates and shells based upon a modified Hu-Washizu principleHybrid SemiLoof elements for plates and shells are developed based upon modified Hu-Washizu principle. In the new version of the assumed stress hybrid formulation the equilibrium equations are satisfied through the introduction of internal displacement parameters as Lagrange multipliers. The inversion of the resulting H-matrices is simplified particularly when the stresses are expressed in terms of natural coordinates. A 24-DOF triangular element and a 32-DOF quadrilateral element based on shallow shell theory are derived and evaluated.
Document ID
19850033742
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Pian, T. H. H.
(MIT Cambridge, MA, United States)
Sumihara, K.
(Massachusetts Inst. of Tech. Cambridge, MA, United States)
Date Acquired
August 12, 2013
Publication Date
January 1, 1984
Publication Information
Publication: Computers and Structures
Volume: 19
Issue: 1-2
ISSN: 0045-7949
Subject Category
Structural Mechanics
Accession Number
85A15893
Funding Number(s)
CONTRACT_GRANT: NAG3-33
Distribution Limits
Public
Copyright
Other

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