AN IMPROVED APPROXIMATION FOR STRESS CONSTRAINTS IN PLATE STRUCTURES

Authors
VANDERPLAATS GN THOMAS HL
Citation
Gn. Vanderplaats et Hl. Thomas, AN IMPROVED APPROXIMATION FOR STRESS CONSTRAINTS IN PLATE STRUCTURES, Structural optimization, 6(1), 1993, pp. 1-6
Citations number
NO
Categorie Soggetti
Computer Applications & Cybernetics",Engineering,Mechanics
Journal title
Structural optimization → ACNP
ISSN journal
09344373
Volume
6
Issue
1
Year of publication
1993
Pages
1 - 6
Database
ISI
SICI code
0934-4373(1993)6:1<1:AIAFSC>2.0.ZU;2-5
Abstract
An improved approximation for stresses (and strains) in plate structur es is presented. This approximation is highly accurate because it is b ased on approximations of the element forces, which are more invariant than the element stresses and strains, and because it captures the no nlinearity in the stress recovery calculations. Both sizing and shape design problems are used as examples to show the increased accuracy an d robustness of this approximation function.