Re-evaluation of Adhesive Fracture Energy |
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| Authors: | Mongi Ben Ouezdou Alexander Chudnovsky Abdelsamie Moet |
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| Affiliation: |
a Department of Civil Engineering, Case Western Reserve University, Cleveland, OH, U.S.A.
b Department of Civil Engineering, Mechanics and Metallurgy, University of Illinois at Chicago, Chicago, IL, U.S.A.
c Department of Macrocmolecular Science, Case Western Reserve University, Cleveland, OH, U.S.A. |
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| Abstract: | A model to evaluate the Energy Release Rate (ERR) of adhesives using the Double Cantilever Beam (DCB) specimen is described. The model accounts for the adhesive bond thickness and its material properties. The analysis, considered as an improvement to the built-in cantilever beam model, treats the adherend as a finite beam which is partly free and partly supported by an elastic foundation and the adhesive bond as a thin strip under prescribed displacement. The results show significant effect of the adhesive parameters on the total ERR and that the built-in cantilever model underestimates the ERR. In general, the contribution of the adhesive bond to the ERR increases for softer adhesives, shorter cracks and thicker bonds. |
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| Keywords: | Fracture energy bond thickness modulus adhesives double cantilever beam specimen modeling |
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