Nonlinear finite element analysis of reinforced concrete beams strengthened by fiber-reinforced plastics

Hu, Hsuan Teh; Lin, Fu Ming; Jan, Yih Yuan

doi:10.1016/s0263-8223(03)00174-0

Cited by 100 publications

(46 citation statements)

References 17 publications

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“…In all the examined cases, the elastic analyses performed within the LMM and ECM have been carried out using FE commercial code ADINA [2] with meshes of 3D-solid 8-nodes elements with 2 Â 2 Â 2 GPs per element for modeling concrete, 2D-solid 4-nodes membrane elements, under plane stress hypothesis and with 2 Â 2 GPs per element for modeling CFRP sheets and 2-nodes, 1-GP, truss elements for modeling steel bars and stirrups. Each node is endowed with the three translational degrees of freedom, while a perfect bond between concrete and steel re-bars as well as between concrete and FRP sheets is postulated in the FE-model [10]. Finally, a Fortran main program has been utilized to control the ''adjusting'' of the elastic parameters at each GP of each element to accomplish the matching, when performing the LMM, and to realize the stress redistribution, within the ECM.…”

Section: Specimen Labelmentioning

confidence: 99%

Strengthening of steel-reinforced concrete structural elements by externally bonded FRP sheets and evaluation of their load carrying capacity

Domenico

Fuschi

Pardo

et al. 2014

Composite Structures

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Section: Specimen Labelmentioning

confidence: 99%

Strengthening of steel-reinforced concrete structural elements by externally bonded FRP sheets and evaluation of their load carrying capacity

Domenico

Fuschi

Pardo

et al. 2014

Composite Structures

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“…Постоји више софтверских МКЕ програма који могу да ураде нелинеарну анализу АБ, као што су ABAQUS, ANSYS, ADINA итд., међутим, сви ови програми немају аутоматску функцију нелинеарне анализе АБ већ аутор модела мора самостално да уради креирање материјализације. Нелинеарна анализа армирано бетонских греда ојачаних ФРП тракама у програмском пакету ABAQUS приказaнe су у радoвима [2], [3]. Развој прслина код класичних армирано бетонских греда анализирано је и приказано у радовима [4], [5].…”

Section: уводunclassified

Nelinearna Analiza Armirano Betonskih Konstrukcija U Programskom Paketu Abaqus

Marković¹,

Stojić²,

Cvetković³

2014

Zbornik GFS

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УВОДОд 1970-их година, анализа армирано бетонских конструкција помоћу програма на бази методе коначних елемената (МКЕ), доживљава константни успон. Урађен је велики број истраживања и развијене су методе којима се може симулирати понашање армираног бетона, међутим, због своје изразите нелинеарности, још увек не постоји савршени модел који може потпуно реално да узме у обзир све феномене понашања АБ конструкција. Последњих десетак година, са развојем капацитета компјутера, створили су се услови за извођење веома захтевних и комплексних анализа како армирано бетонских конструкција тако и других конструкција и проблема. Комплексност моделирања АБ зaснива се на више феномена као што су нелинеарни однос напон-1 Немања Марковић, дипл.инж. грађ., Универзитет у Нишу, Грађевинско-архитектонски факултет у

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“…Hence, some studies have suggested debonding to occur with reduced sti ness in elements at the interfacial layers [12] (smeared crack model). Hu et al (2004) [14], Rahimi and Hutchinson (2001) [15], Aram et al (2005) [16], and Lu and Ayoub (2010) [17] also used a similar method. Other methods, such as extended nite element (XFEM) and moving mesh technique, are the combination of smeared and discrete crack methods.…”

Section: Introductionmentioning

confidence: 99%

Simulating FRP Debonding From Concrete Surface in FRP Strengthened RC Beams: A Case Study

Mostofinejad

Hosseini

2017

Scientia Iranica

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Abstract. Reinforced Concrete (RC) beams strengthened with Fiber Reinforced Polymer (FRP) sheets may fail due to debonding failure. In such cases, the FRP sheet is detached from the RC beam before real damages are in icted on the beam. In this paper, a procedure is developed based on smeared cracks approach for simulating the debonding process in FRP strengthened RC beams within the framework of nite element. For this purpose, the challenges facing the simulation of debonding mechanism are initially studied, and a method is proposed in a second stage of combating these problems using the cohesive elements available in the ABAQUS software. The validity of the proposed method is then tested by modeling four beams from those reported in the literature and by comparing the results with the experimental ones. Given the acceptable agreement observed between the experimental and numerical simulation results, the method is claimed to be valid and practicable. In a later section of the present paper, the proposed method will be used to investigate the e ects of length and width of the strengthening sheet on beam's behavior and its failure mechanism. The results of the present study reveal that longer FRP sheets increase load carrying capacity and mid-span displacement of strengthened RC beams.

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Nonlinear finite element analysis of reinforced concrete beams strengthened by fiber-reinforced plastics

Cited by 100 publications

References 17 publications

Strengthening of steel-reinforced concrete structural elements by externally bonded FRP sheets and evaluation of their load carrying capacity

Strengthening of steel-reinforced concrete structural elements by externally bonded FRP sheets and evaluation of their load carrying capacity

Nelinearna Analiza Armirano Betonskih Konstrukcija U Programskom Paketu Abaqus

Simulating FRP Debonding From Concrete Surface in FRP Strengthened RC Beams: A Case Study

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