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Record 52 of 97452
A new formulation of hybrid/mixed finite element
Author and Affiliation:
Pian, T. H. H.(Massachusetts Inst. of Tech., Cambridge, MA, United States)
Kang, D.(MIT, Cambridge, MA, United States)
Chen, D.-P.(Massachusetts Inst. of Tech., Cambridge, MA, United States)
Abstract: A new formulation of finite element method is accomplished by the Hellinger-Reissner principle for which the stress equilibrium conditions are not introduced initially but are brought-in through the use of additional internal displacement parameters. The method can lead to the same result as the assumed stress hybrid model. However, it is more general and more flexible. The use of natural coordinates for stress assumptions leads to elements which are less sensitive to the choice of reference coordinates. Numerical solutions by 3-D solid element indicate that more efficient elements can be constructed by assumed stresses which only partially satisfy the equilibrium conditions.
Publication Date: Jan 01, 1983
Document ID:
19830031521
(Acquired Nov 30, 1995)
Accession Number: 83A12739
Subject Category: STRUCTURAL MECHANICS
Document Type: Journal Article
Publisher Information: United Kingdom
Contract/Grant/Task Num: NAG3-33
Financial Sponsor: NASA; United States
Organization Source: Massachusetts Inst. of Tech.; Cambridge, MA, United States
Description: 7p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: EQUILIBRIUM METHODS; FINITE ELEMENT METHOD; ISOPARAMETRIC FINITE ELEMENTS; REISSNER THEORY; STRESS ANALYSIS; STIFFNESS MATRIX; STRESS DISTRIBUTION; STRESS-STRAIN RELATIONSHIPS
Imprint And Other Notes: (Symposium on Advances and Trends in Structural and Solid Mechanics, Washington, DC, Oct. 4-7, 1982.) Computers and Structures, vol. 16, no. 1-4, 1983, p. 81-87.
Availability Source: Other Sources
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