Title of article :
Nonlinear analysis of thin-walled members of variable cross-section. Part I: Theory
Author/Authors :
H.R. Ronagh، نويسنده , , M.A. Bradford، نويسنده , , M.M. Attard، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2000
Pages :
15
From page :
285
To page :
299
Abstract :
The majority of analyses of thin-walled beam-columns in the linear and nonlinear ranges of structural response have been for prismatic sections. This paper presents a theory for the nonlinear axial strain and Kirchhoff stress resultants for a thin-walled beam-column whose cross-section is tapered. An expression for the first variation of the Total Potential is derived, that may be used in a nonlinear equilibrium analysis, and an expression for the second variation of the Total Potential is derived, that may be used in a stability analysis. These variations are used as the basis for a finite element analysis, as described in the companion paper. The results are discussed in light of a previous study of tapered monosymmetric I-beams, and for a linear analysis it is shown that the results of this independent study agree with those presented in this paper.
Keywords :
Elasticity , Tapering , Thin-walled structures , stability analysis , Variational principles , Total potential , Nonlinearity
Journal title :
Computers and Structures
Serial Year :
2000
Journal title :
Computers and Structures
Record number :
1208447
Link To Document :
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