Analytical solutions to the shear strength of interfaces failing under flexure loading conditions


Cotton, J., Grant, J.W., Jensen, M.K. and Love, B.J. (2001) Analytical solutions to the shear strength of interfaces failing under flexure loading conditions. International Journal of Adhesion and Adhesives, 21, (1), 65-70. (doi:10.1016/S0143-7496(00)00031-2).

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Description/Abstract

Flexure experiments have been performed on steel substrates having a rib of methacrylate resin cast as a stiffener on the steel. Samples were loaded until resin delaminated from the substrate and the load at failure was recorded. An analytical solution for a composite beam was used to relate the force at failure to interfacial shear stress. This resulted in an average estimated shear strength of 490 kPa (71 psi) for a resin/steel interface. The accuracy of the analytic solution was examined using a three-dimensional finite element analysis (FEA). The FEA was also used to examine the assumptions of the first approximation analytic solution. The analytic solution can be applied more generally, considering the mechanical characteristics of both constituents, to design experiments that lead to a simplified determination of interfacial shear strength.

Item Type: Article
ISSNs: 0143-7496 (print)
Related URLs:
Keywords: interfacial shear strength, flexural test, adhesive layer debonding, methacrylate/steel joints, delamination failure
Subjects: T Technology > TJ Mechanical engineering and machinery
Q Science > QC Physics
Divisions: University Structure - Pre August 2011 > School of Engineering Sciences
ePrint ID: 21598
Date Deposited: 13 Mar 2006
Last Modified: 27 Mar 2014 18:11
Contact Email Address: blove@vt.edu
URI: http://eprints.soton.ac.uk/id/eprint/21598

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