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

被引：6

作者：

Yoresta, Fengky Satria ^{[1
,2
]}

Nhut, Phan Viet ^{[1
,3
]}

Matsumoto, Yukihiro ^{[1
]}

机构：

[1] Toyohashi Univ Technol, Dept Architecture & Civil Engn, Toyohashi, Aichi 4418580, Japan

[2] Bogor Agr Univ, Engn & Bldg Design Lab, Bogor 16680, Indonesia

[3] Univ Technol & Educ, Univ Danang, Dept Civil Engn, Danang City 550000, Vietnam

来源：

MATERIALS | 2020年 / 13卷 / 16期

关键词：

unbonded CFRP; finite element; axial compression; steel members; BEHAVIOR; TESTS;

D O I：

10.3390/ma13163540

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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.

引用

页数：18

共 25 条

[1]

[Anonymous], 2011, THEORY MANUAL, V1

[2] Experimental and theoretical investigation on torsional behaviour of CFRP strengthened square hollow steel section [J].