Stress distribution of CFRP strengthened steel hollow sections under tension

Shahanara, Kaniz & Fawzia, Sabrina (2012) Stress distribution of CFRP strengthened steel hollow sections under tension. In Hossain, Quazi Sazzad, Islam, Kd. Md. Shafiul, Rashid, Md. Harunur, Hassan, Khondoker Mahbub, Ali, Md. Shahjahan, Rahman, Md. Ataur, et al. (Eds.) Proceedings of the International Conference on Civil Engineering for Sustainable Development, Khulna University of Engineering & Technology, Bangladesh, pp. 1-9.

Abstract

Carbon fibre reinforced polymer (CFRP) sheets have many outstanding properties such as high strength, high elastic modulus, light weight and good durability which are made them a suitable alternative for steel in strengthening work. This paper describe the ultimate load carrying capacity of steel hollow sections at effective bond length in terms of its cross sectional area and the stress distribution within bond region for different layers CFRP. It was found that depending on their size and orientation of uni- directional CFRP layers, the ultimate tensile load was different. Along with these tests, non linear finite element analysis was also performed to validate the ultimate load carrying capacity depending on their cross sections. The predicted ultimate loads from FE analysis are found very close to the laboratory test results. The validated model has been used to determine the stress distribution at bond joint for different orientation of CFRP. This research shows the effect of stress distribution and suitable wrapping layer to be used for the strengthening of steel hollow sections in tension.

Impact and interest:

1 citations in Web of Science®
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ID Code: 58912
Item Type: Conference Paper
Refereed: Yes
Keywords: CFRP, Steel Hollow Section, Wrapping Layer, Stress Distribution
ISBN: 978-984-33-4247-8
Divisions: Current > Schools > School of Civil Engineering & Built Environment
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2012 please consult the authors
Deposited On: 04 Apr 2013 23:01
Last Modified: 10 Apr 2013 14:12

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