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As quoted in several technical books [1] adhesively-bonded joints are rarely used, because of their low strength and of their poor design. As remarked in the review-paper due to Benson [2] , the main difficulty is to compute the effect of the angular singularities in the neighbourhoods of each extremity of the lap. The two singularities have been examined by means of the matched asymptotic expansions method [3], due to Gilibert and Rigolot. But it was rapidly seen that this method was not able to explain the behaviour of the samples tested, when the width of the joint is small versus the geometrical and mechanical characteristics of the adherends. The aim of the present paper is to give a good experimental approach of the singularities effects by use of the laser-photoelasticimetry analysis. In a first step we compare the results with the classical ones obtained by Gilibert [4] by an extensanctrical method; it is in particular possible to evaluate the residual stresses due to the machining processes. In a second step we compare the results with the theoretical ones obtained by Gilibert and Rigolot [3]; in particular a dissymmetry in the localisation of stresses is to be seen and not yet explained by the computations.
L Ben Aicha andY Gilbert
"Stresses Field Analysis In An Adhesively Bonded Joint With Laser Photoelasticimetry.", Proc. SPIE 0672, In Situ Industrial Applications of Optics, (22 July 1986); https://doi.org/10.1117/12.939021
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L Ben Aicha, Y Gilbert, "Stresses Field Analysis In An Adhesively Bonded Joint With Laser Photoelasticimetry.," Proc. SPIE 0672, In Situ Industrial Applications of Optics, (22 July 1986); https://doi.org/10.1117/12.939021