Numerical model for CFRP confined concrete elements subject to monotonic and cyclic loadings

被引：20

作者：

Varma, Raiendra K. ^{[1
]}

Barros, Joaquim A. O. ^{[1
]}

Sena-Cruz, Jose M. ^{[1
]}

机构：

[1] Univ Minho, Dept Civil Engn, P-4800058 Azurem, Guimaraes, Portugal

来源：

COMPOSITES PART B-ENGINEERING | 2009年 / 40卷 / 08期

关键词：

Carbon fibre; Computational modelling; Finite element analysis (FEA); Cyclic constitutive model;

D O I：

10.1016/j.compositesb.2009.05.005

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Uniaxial cyclic and monotonic compression tests were carried out on partially and fully wrapped concrete cylinders with Carbon Fibre Reinforced Polymer (CFRP) wet lay-up sheets. The influence of the concrete compressive strength, CFRP stiffness, geometric confinement arrangement and loading type on the compressive behaviour of reinforced concrete column elements of circular cross-section up to their failure was assessed. A uniaxial stress-strain constitutive model is proposed, and the results obtained from the experimental tests were used to calibrate some of the parameters of this model, and to appraise the model performance. This model allows the simulation of reinforced concrete members by using Timo-shenko one-dimensional elements, in the context of the finite element method (fibre model). Good agreement was obtained between numerical simulations and experimental results for both monotonic and cyclic loading tests. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：766 / 775

页数：10