Showing papers on "Tangent stiffness matrix published in 1971"
TL;DR: Modified Newton-Raphson stiffness matrices and initial value formulations to geometrically nonlinear structural analysis for beam and plane stress triangular elements have been proposed in this article for the first time.
Abstract: Modified Newton-Raphson stiffness matrices and initial value formulations to geometrically nonlinear structural analysis for beam and plane stress triangular elements
39 citations
TL;DR: In this paper, the form of the structural stiffness matrix that results from a coupled harmonic type of analysis is examined, and it is shown that such a matrix can be banded, thereby leading toward the practicality of the coupled harmonic finite-element analysis method for complex asymmetrically loaded solids of revolution.
Abstract: The purpose of this note is to examine the form of the structural stiffness matrix that results from a coupled harmonic type of analysis. It is to be shown that such a matrix can be banded, thereby leading toward the practicality of the coupled harmonic finite-element analysis method for complex asymmetrically loaded solids of revolution.
5 citations
01 Jan 1971
TL;DR: In this article, a method for computing generalized stress-strain relationships (mament-thrustcurvature relationships) for metal column sections in biaxial bending is described.
Abstract: A method for computing generalized stress-strain relationships (mament-thrust-curvature relationships) for metal column sections in biaxial bending is described. The analytical formulation of the force-deformation equations in terms of the rate of change leads to a linear relationship between these quantities. Solutions. are obtained by the tangent stiffness method and a,digital computer. The method is found to be extremely powerful and efficient for com-, puter solution.