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Civil-Comp Proceedings
ISSN 1759-3433 CCP: 43
ADVANCES IN COMPUTATIONAL TECHNIQUES FOR STRUCTURAL ENGINEERING Edited by: B.H.V. Topping
Paper III.2
Distortion in Mechanics of Elastic-Plastic Frames J. Atkociunas, A. Norkus and L. Rimkus
Department of Structural Mechanics, Vilnius Technical University, Vilnius, Lithuania Full Bibliographic Reference for this paper
J. Atkociunas, A. Norkus, L. Rimkus, "Distortion in Mechanics of Elastic-Plastic Frames", in B.H.V. Topping, (Editor), "Advances in Computational Techniques for Structural Engineering", Civil-Comp Press, Edinburgh, UK, pp 37-41, 1996. doi:10.4203/ccp.43.3.2
Abstract
A unified equations system for analysis of elastic- plastic
frame structures under given external loads, thermal effects,
supports displacements and known plastic strains is obtained
by using a concept of distorsion. Distorsion, concentrated at
the main (bounding) nodes of finite equilibrium elements
enables the uniformly load p applied at the element to be
changed by nodal forces. Relations between unified matrix
equations system and extremum energy principles are
shown.
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