Finite ElementModelingof FRP-Confined Concrete using Extended Damage-Plasticity Approach

International Conference on Materials, Alloys and Experimental Mechanics 2017

材料科学;金属学;机械制造

Gholampour, Aliakbar^1 ; Ozbakkaloglu, Togay^1

School of Civil, Environmental and Mining Engineering, University of Adelaide, SA

5005, Australia^1

关键词: Compressive behavior;    Confinement levels;    Damage plasticity;    Damage-plasticity models;    Fiber reinforced polymers;    FRP confined concrete;    High strength concretes;    Stress strain;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/225/1/012147/pdf
DOI  :  10.1088/1757-899X/225/1/012147

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

A study on finite element (FE) modelingof fiber-reinforced polymer (FRP)-confined normal-strength and high-strength concrete (NSC and HSC) based on an extended concrete damage-plasticity approach is presented. The study focuses on the extension ofLubliner's model by accurately incorporating the effects of confinement level, concrete strength, and nonlinear dilation behavior of FRP-confined concrete. Failure surface and flow rule were established using an up-to-date database. In order to validate the extended damage-plasticity model, the predictions of the FE modeling are compared with the experimental results. These comparisons indicate that the extended approach accurately predicts the compressive behavior of FRP-confined NSC and HSC.