Analysis of beam cross section response accounting for large strains and plasticity

INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES

卷:176

Article

Morandini, Marco¹ 

[1] Politecn Milan, Dipartimento Sci & Tecnol Aerosp, Via Masa 34, I-20156 Milan, Italy

关键词: Beam;    Cross section;    Nonlinear;    Plasticity;    Taylor expansion;   

DOI  :  10.1016/j.ijsolstr.2019.05.014

来源: Elsevier

【 摘 要 】

The nonlinear response of straight, constant cross section of beams is investigated by means of a semi-analytical approach. The three dimensional displacement field is approximated, for a given cross section, using a FE element discretization on the section combined with a Taylor expansion in the beam axial direction. This allows to compute the beam cross section deformation as a function of the stress resultant and moment resultant, without the need to solve a three dimensional model, still allowing to account for complex three-dimensional constitutive laws. (C) 2019 Elsevier Ltd. All rights reserved.

【 授权许可】

Free