Thin plates are widely used in various engineering applications. In some cases, these structural components may buckle due to compressive loads, which can be aggravated by lateral loads. Several authors have studied the elastoplastic buckling behavior of thin considering parameters such as material and geometric properties, support conditions, initial out-of-plane imperfections. Some studies al...

A model simulating a coupledjuid-structure impact buckling phenomenon is constructed in this paper. Based on the experiment’,’ the model is designed as an impact system in which a small imperfection elastoplastic column is attached by its upper end to a large mass and by its lower end to aflatplate; it then perpendicularly impacts a viscous water free surface from a certain drop height or in a ...

Abstract In order to study the stability performance of three-limbed steel tube latticed column, finite element numerical analysis method based on structural theory is adopted. Firstly, linear column without diagonal lacing bar carried out, and calculation elastic buckling load considering influence shear deformation obtained. Then, elastoplastic with are out. The studied when only global initi...

We propose an algorithm for the efficient parallel implementation of elastoplastic problems with hardening based on the so-called TFETI (Total Finite Element Tearing and Interconnecting) domain decomposition method. We consider an associated elastoplastic model with the von Mises plastic criterion and the linear isotropic hardening law. Such a model is discretized by the implicit Euler method i...

In this article an “hyper-reduced” scheme for the Crisfield’s algorithm (Crisfield, 1981) applied to buckling simulations and plastic instabilities is presented. The two linear systems ellipse equation entering are projected on a reduced space solved in integration domain, resulting system of equations. Use made Gappy proper orthogonal decomposition recover stresses outside domain. Various meth...

Many studies on structural topology optimization of steel plate shear walls have been conducted. However, research using the bidirectional evolutionary method is limited. Accordingly, this study optimized stiffening effect (SPSWs) based method. A finite element model SPSW was established Abaqus software through “sandwich” modeling An region expanded into two regions. As targets, SPSWs with diff...

In this paper we present efficient parallel implementation of solvers for elastoplastic problems based on the so-called Total Finite Element Tearing and Interconnecting (TFETI) domain decomposition method. We propose a set of numerical experiments to illustrate effectivity of the presented solvers. We consider an associated elastoplastic model with the von Misses plastic criterion and the isotr...