Higher-Order Finite Element for Plane Stressby James L. Tocher,
Billy J. Hartz,
Serial Information: Journal of the Engineering Mechanics Division, 1967, Vol. 93, Issue 4, Pg. 149-172
Document Type: Journal Paper
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.
Subject Headings: Stiffening | Matrix (mathematics) | Polynomials | Rotation | Degrees of freedom | Finite element method
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