Higher-Order Finite Element for Plane Stress
- 1 August 1967
- journal article
- Published by American Society of Civil Engineers (ASCE) in Journal of the Engineering Mechanics Division
- Vol. 93 (4) , 149-172
- https://doi.org/10.1061/jmcea3.0000875
Abstract
A higher-order plane stress stiffness matrix is developed to overcome some of the deficiencies at the standard constant stress triangle. The stiffness matrix is derived from polynomial displacement functions and includes in-plane nodal rotations as additional degrees of freedom. Numerical examples are included. Refined stress patterns of greater accuracy are obtained.Keywords
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