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contributor authorM. J. French
date accessioned2017-05-08T23:58:46Z
date available2017-05-08T23:58:46Z
date copyrightSeptember, 1999
date issued1999
identifier issn0021-8936
identifier otherJAMCAV-26478#738_1.pdf
identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/121638
description abstractThis paper introduces a new aid to the design of economical plane structures, based on the twin concepts of structural task , which is an invariant for a given load system and given constraints on where material may be placed, and (absolute) pertinacity , which is the product of force and member length. An optimum (Michell) structure has task equal to pertinacity for every element of every member. The ratio u of task to pertinacity is unity everywhere in an optimum structure, and constitutes a utility factor: u may be negative for a member, that is, it is possible for a member to increase the task to be borne by the rest of the structure. A parallel is drawn with First and Second Law analysis in thermodynamics.
publisherThe American Society of Mechanical Engineers (ASME)
titleA “Second Law” for Structures: An Insightful Approach to the Design of Plane Frames
typeJournal Paper
journal volume66
journal issue3
journal titleJournal of Applied Mechanics
identifier doi10.1115/1.2791688
journal fristpage738
journal lastpage741
identifier eissn1528-9036
keywordsDesign
keywordsForce
keywordsThermodynamics
keywordsStress AND Structural optimization
treeJournal of Applied Mechanics:;1999:;volume( 066 ):;issue: 003
contenttypeFulltext


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