Post Buckling Behavior
Mostrando 1-10 de 10 artigos, teses e dissertações.
-
1. Local buckling and post-critical behavior of thin-walled composite channel section columns
Abstract This work presents a study of the behavior, performance and failure of thin-walled composite channel section columns. The study is carried-out using nonlinear finite element models of laminated columns, including geometric imperfections and material failure, as well as approximate analytical solutions based on the Classical Lamination Theory. The ac
Lat. Am. j. solids struct.. Publicado em: 19/07/2018
-
2. Nonlinear Analysis on Buckling and Postbuckling of Stiffened FGM Imperfect Cylindrical Shells Filled Inside by Elastic Foundations in Thermal Environment Using TSDT
Abstract The main aim of this paper is to investigate analytically nonlinear buckling and post-buckling of functionally graded stiffened circular cylindrical shells filled inside by Pasternak two-parameter elastic foundations in thermal environments and under axial compression load and external pressure by analytical approach. Shells are reinforced by closel
Lat. Am. j. solids struct.. Publicado em: 2017-06
-
3. Effect of Thermal Residual Stresses on Buckling and Post-Buckling Properties of Laminated Composites Perimetrally Reinforced
Abstract Several mechanical properties can be affected by the occurrence of residual stresses due to curing, and their effects are more pronounced in laminated composites. The effect of the thermal residual stresses on the buckling and post-buckling properties of perimetrally reinforced laminated composites is experimentally characterized. Carbon/epoxy lamin
Lat. Am. j. solids struct.. Publicado em: 2016-03
-
4. Numerical analysis of highly deformable elastoplastic beams
AbstractThe objective of the present study is to develop a numerical formulation to predict the behavior of highly deformable elastoplastic thin beams. Following the Euler-Bernoulli bending, the axial and shear effects are neglected, and the nonlinear second-order differential equation regarding the angle of rotation is defined based on the specific moment-c
Lat. Am. j. solids struct.. Publicado em: 2015-08
-
5. Parametric study on average stress-average strain curve of composite stiffened plates using progressive failure method
The post-buckling behavior of composite ships' stiffened plate panels has been studied. In this study, the average strain- average stress curves for these panels are derived using progressive failure method as well as nonlinear finite element method. The boundary conditions are appropriate for the continuous plate panels used in shipbuilding. The effects of
Lat. Am. j. solids struct.. Publicado em: 2014
-
6. An accelerated incremental algorithm to trace the nonlinear equilibrium path of structures
This paper deals with the convergence acceleration of iterative nonlinear methods. An effective iterative algorithm, named the three-point method, is applied to nonlinear analysis of structures. In terms of computational cost, each iteration of the three-point method requires three evaluations of the function. In this study the effective functions have been
Lat. Am. j. solids struct.. Publicado em: 2012-08
-
7. Simulação numérica do comportamento estrutural de vigas casteladas de aço com ênfase na flambagem do montante de alma. / Numerical simulation of structural behavior of castellated beams with emphasis on web-post buckling
Com o início da produção de perfis I de aço laminados no Brasil, a partir de 2002, tem havido um interesse crescente da indústria brasileira pelas vigas casteladas, no segmento das estruturas de aço. As vigas casteladas são fabricadas expandindo-se a alma de perfis de aço I ou H laminados, de modo que a viga tenha maior rigidez na direção da maior
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/02/2011
-
8. NONLINEAR DYNAMICS, INSTABILITY AND CONTROL OF STRUCTURAL SYSTEMS WITH MODAL INTERACTION / DINÂMICA NÃO-LINEAR, INSTABILIDADE E CONTROLE DE SISTEMAS ESTRUTURAIS COM INTERAÇÃO MODAL
The aim of this thesis is to study the influence of coupled buckling modes on the static and particularly on the nonlinear dynamic behavior of structural components liable to buckling. For this, two discrete two degrees of freedom models known for their complex nonlinear behavior are selected: the well-known Augusti¿s model and a simplified model of cable-s
Publicado em: 2010
-
9. COMPORTAMENTO CRÍTICO E PÓS-CRÍTICO DE PLACAS DOBRADAS / BUCKLING AND POST-BUCKLING BEHAVIOR OF FOLDED PLATES
O presente trabalho tem por objetivo estudar o comportamento crítico e pós-crítico de placas dobradas. Placas dobradas, tanto de aço quanto de concreto, têm sido usadas com grande freqüência em obras de engenharia, particularmente como paredes portantes e coberturas de grandes vãos. Neste último caso, placas dobradas têm uma aplicação semelhante
Publicado em: 2005
-
10. AVALIAÇÃO DE CARGAS CRÍTICAS E COMPORTAMENTO PÓS-CRÍTICO INICIAL DE PÓRTICOS PLANOS / EVALUATION OF CRITICAL LOADS AND INITIAL POST-BUCKLING BEHAVIOR OF PORTAL FRAMES
Nesta dissertação estuda-se a flambagem e o comportamento pós-crítico inicial de pórticos planos através da formulação de elementos finitos com graus de liberdade adicionais para posterior implementação no programa de análise FTOOL. Realizaram-se análises linearizadas para a determinação das cargas críticas clássicas e modos de flambagem de c
Publicado em: 2005