Title of article :
Elastoplastic analysis of frames composed of softening materials by restricted basis linear programming
Author/Authors :
M.R. Mahini، نويسنده , , H. Moharrami، نويسنده , , G. Cocchetti، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2014
Pages :
11
From page :
98
To page :
108
Abstract :
This paper is concerned with nonlinear analysis of frames composed of softening materials. The previously proposed dissipated energy maximization approach is extended to determine non-holonomic solution of such frames. The adopted assumptions are: linear kinematics, lumped plasticity with softening behavior, piecewise-linear yield functions, associate flow rule and isotropic evolution with a three phase linear softening rule. The approach is based on a mathematical programming formulation. The solution procedure is discussed and presented in a comprehensive flowchart. It is shown that this method has the ability of solving and tracing path dependent problems and detecting any possible bifurcation.
Keywords :
Nonlinear analysis , Softening joints , Piecewise-linear model , Mathematical programming
Journal title :
Computers and Structures
Serial Year :
2014
Journal title :
Computers and Structures
Record number :
1211108
Link To Document :
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