Finite Element Analysis of Axial Compression Steel Members Strengthened with Unbonded CFRP Laminates

This paper presented a non-linear finite element (FE) analysis to investigate the potential of unbonded carbon fiber-reinforced polymers (CFRP) strengthening in improving the axial compression performance of steel members. The FE model was firstly developed and validated against experimental works....

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Main Authors: Fengky Satria Yoresta, Phan Viet Nhut, Yukihiro Matsumoto
Format: Article
Language:English
Published: MDPI AG 2020-08-01
Series:Materials
Subjects:
Online Access:https://www.mdpi.com/1996-1944/13/16/3540
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author Fengky Satria Yoresta
Phan Viet Nhut
Yukihiro Matsumoto
author_facet Fengky Satria Yoresta
Phan Viet Nhut
Yukihiro Matsumoto
author_sort Fengky Satria Yoresta
collection DOAJ
description This paper presented a non-linear finite element (FE) analysis to investigate the potential of unbonded carbon fiber-reinforced polymers (CFRP) strengthening in improving the axial compression performance of steel members. The FE model was firstly developed and validated against experimental works. Four parameters considered in the parametric study were the number of CFRP layers, CFRP length, slenderness ratio, and elastic modulus of CFRP. It was confirmed that the unbonded CFRP strengthening method is effective at enhancing the load-carrying capacity as well as delaying the overall buckling of the axial steel members. The strength increase is highly affected by the first three parameters. In addition, the method of an equivalent slenderness ratio can be used for strength design.
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spelling doaj.art-ef258293d8204a1d837c55c980b8c67b2023-11-20T09:46:16ZengMDPI AGMaterials1996-19442020-08-011316354010.3390/ma13163540Finite Element Analysis of Axial Compression Steel Members Strengthened with Unbonded CFRP LaminatesFengky Satria Yoresta0Phan Viet Nhut1Yukihiro Matsumoto2Department of Architecture and Civil Engineering, Toyohashi University of Technology, Toyohashi, Aichi 441-8580, JapanDepartment of Architecture and Civil Engineering, Toyohashi University of Technology, Toyohashi, Aichi 441-8580, JapanDepartment of Architecture and Civil Engineering, Toyohashi University of Technology, Toyohashi, Aichi 441-8580, JapanThis paper presented a non-linear finite element (FE) analysis to investigate the potential of unbonded carbon fiber-reinforced polymers (CFRP) strengthening in improving the axial compression performance of steel members. The FE model was firstly developed and validated against experimental works. Four parameters considered in the parametric study were the number of CFRP layers, CFRP length, slenderness ratio, and elastic modulus of CFRP. It was confirmed that the unbonded CFRP strengthening method is effective at enhancing the load-carrying capacity as well as delaying the overall buckling of the axial steel members. The strength increase is highly affected by the first three parameters. In addition, the method of an equivalent slenderness ratio can be used for strength design.https://www.mdpi.com/1996-1944/13/16/3540unbonded CFRPfinite elementaxial compressionsteel members
spellingShingle Fengky Satria Yoresta
Phan Viet Nhut
Yukihiro Matsumoto
Finite Element Analysis of Axial Compression Steel Members Strengthened with Unbonded CFRP Laminates
Materials
unbonded CFRP
finite element
axial compression
steel members
title Finite Element Analysis of Axial Compression Steel Members Strengthened with Unbonded CFRP Laminates
title_full Finite Element Analysis of Axial Compression Steel Members Strengthened with Unbonded CFRP Laminates
title_fullStr Finite Element Analysis of Axial Compression Steel Members Strengthened with Unbonded CFRP Laminates
title_full_unstemmed Finite Element Analysis of Axial Compression Steel Members Strengthened with Unbonded CFRP Laminates
title_short Finite Element Analysis of Axial Compression Steel Members Strengthened with Unbonded CFRP Laminates
title_sort finite element analysis of axial compression steel members strengthened with unbonded cfrp laminates
topic unbonded CFRP
finite element
axial compression
steel members
url https://www.mdpi.com/1996-1944/13/16/3540
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AT phanvietnhut finiteelementanalysisofaxialcompressionsteelmembersstrengthenedwithunbondedcfrplaminates
AT yukihiromatsumoto finiteelementanalysisofaxialcompressionsteelmembersstrengthenedwithunbondedcfrplaminates