Paper Title:
Effects of Locations of Adhesive Hollows on Interfacial Stress
  Abstract

Fiber Reinforced Polymer (FRP) has been effectively used for strengthening concrete beams. In this study, nonlinear finite element (FE) model of the beam strengthened with CFRP is established to analyze the debonding failure caused by the adhesive hollow defects. The constitutive relationship of the adhesive layer in the FE models is similar to Monti’s bi-linear mode. Three different locations of the hollows are considered in the FE models. The principal stresses in the concrete, the debonding stresses in the adhesive and the stress in CFRP are calculated. The results show that the effect of the locations of the hollow is marginal on the principal stresses in the concrete. When the hollow appears close to the interfacial end, the debonding stresses in the adhesive and the shear stress in the CFRP are significant, which easily causes the debonding failure.

  Info
Periodical
Key Engineering Materials (Volumes 462-463)
Edited by
Ahmad Kamal Ariffin, Shahrum Abdullah, Aidy Ali, Andanastuti Muchtar, Mariyam Jameelah Ghazali and Zainuddin Sajuri
Pages
172-176
DOI
10.4028/www.scientific.net/KEM.462-463.172
Citation
Z. H. Xie, P. Y. Huang, G. Q. Zhong, J. Deng, "Effects of Locations of Adhesive Hollows on Interfacial Stress", Key Engineering Materials, Vols. 462-463, pp. 172-176, 2011
Online since
January 2011
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Price
$32.00
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