The Study of Explicit Scheme of Hybrid Stress-Function Element with Rotation Degrees of Freedom

Abstract:

A simple and efficient explicit scheme of triangular planar element with rotation degrees of freedom is proposed in this paper. The basic fundamental solutions of plane elasticity problem based on Airy stress functions are used as trial functions to construct triangular element with drilling degrees of freedom. During the construction of element model, the explicit expression of element stiffness matrix is deduced by means of triangular area coordinates integration method, instead of numerical integration method. Numerical calculation indicates that the element constructed in this paper is of high precision but less computational cost.

• Periodical: Applied Mechanics and Materials (Volumes 353-356)
• Pages: 3220-3223
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.353-356.3220
• Online since: August 2013
• Authors: Li Na Ge, Ge Tian, Ming Wu Yuan, Meng Yan Song, Xiang Rong Fu
• Keywords: Analytical Trial Functions, Drilling Degrees of Freedom, Explicit Scheme, Hybrid Stress-Function Element, Insensitive to Mesh Distortion

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