Nonholonomic Analysis of Elastoplastic FramesSource: Journal of Engineering Mechanics:;1991:;Volume ( 117 ):;issue: 012Author:W.A.M. Alwis
DOI: 10.1061/(ASCE)0733-9399(1991)117:12(2804)Publisher: American Society of Civil Engineers
Abstract: A procedure for progressive nonholonomic analysis of elastoplastic plane frames neglecting axial force effects is developed. Within the framework of simple plastic theory the governing condition is expressed in terms of total values of loads, bending moments, and hinge rotations. The path‐dependent load‐deformation behavior is traced incrementally through linear phases, imposing the yield criterion and flow rule as auxiliary conditions. The method is intended for implementation as an interactive system for analysis and design. Computations are organized as a series of four modules such that a loading data modification can be responded to with little effort and the next fastest response is for changes in member sections, nodal coordinates, and structural connectivity, in that order. Deflection components are computed only as and when queried by the user. A special feature of the approach is that the complete solution can be provided whenever lack of uniqueness of kinematic solution arises. A detailed example is included.
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contributor author | W.A.M. Alwis | |
date accessioned | 2017-05-08T22:36:07Z | |
date available | 2017-05-08T22:36:07Z | |
date copyright | December 1991 | |
date issued | 1991 | |
identifier other | %28asce%290733-9399%281991%29117%3A12%282804%29.pdf | |
identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/83413 | |
description abstract | A procedure for progressive nonholonomic analysis of elastoplastic plane frames neglecting axial force effects is developed. Within the framework of simple plastic theory the governing condition is expressed in terms of total values of loads, bending moments, and hinge rotations. The path‐dependent load‐deformation behavior is traced incrementally through linear phases, imposing the yield criterion and flow rule as auxiliary conditions. The method is intended for implementation as an interactive system for analysis and design. Computations are organized as a series of four modules such that a loading data modification can be responded to with little effort and the next fastest response is for changes in member sections, nodal coordinates, and structural connectivity, in that order. Deflection components are computed only as and when queried by the user. A special feature of the approach is that the complete solution can be provided whenever lack of uniqueness of kinematic solution arises. A detailed example is included. | |
publisher | American Society of Civil Engineers | |
title | Nonholonomic Analysis of Elastoplastic Frames | |
type | Journal Paper | |
journal volume | 117 | |
journal issue | 12 | |
journal title | Journal of Engineering Mechanics | |
identifier doi | 10.1061/(ASCE)0733-9399(1991)117:12(2804) | |
tree | Journal of Engineering Mechanics:;1991:;Volume ( 117 ):;issue: 012 | |
contenttype | Fulltext |