16个和20个自由度的四面体有限元的场函数表达式的显式

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The Explicit Forms of Field Functions in Tetrahedron Element with 16 and 20 Degrees of Freedom

摘要: 本文写出了16个和20个自由度的四面体有限元的场函数表达式的显式.它们是用体积座标L₁,L₂,L₃,L₄来表达的.

Abstract: In this paper,the explicit forms of field functions in tetrahedron elements with 16 and 20 degrees of freedom are given in tcrms of volume coordinates L¹,L,L³,L⁴,of tetrahedron.

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[3]	Fjeld,S.A.,"Three-dimensional theory of elasticity".Finite Element Method to Stress Analysis,Holand,1,and Bell,K.(edited) "Tapir Press,Trondheim,Norway,333-363(1969).

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