Research on the Rate-Dependent Fracture Energy of Al/HTPB Adhesive Interface


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The mode-I fracture of adhesive surface was studied by uniaxial tensile test of the double cantilever beam (DCB) adhesive joints which were made from aluminium sheet and Hydroxyl-terminated polybutadienec (HTPB). The load - displacement curves which characterize the response of the macroscopic fracture show a significant rate-dependent property, i.e. the peak load and corresponding displacement increase with the increase of the loading rates. The critical energy release rate has been defined in two waysnon-linear initiation point (NL) and the maximum load point based on the experimental curves, was gained by the corrected beam theory of fracture mechanics. In addition, the cohesive parameters-fracture energy was also decided by the inversion identification method. The fracture energy obtained numerical simulation is slightly greater than the value obtained by the corrected beam theory, but both results indicate the fracture energy of the adhesive interface also increases continuously with increasing loading rates.



Advanced Materials Research (Volumes 834-836)

Edited by:

Prasad Yarlagadda and Yun-Hae Kim




Z. Wei et al., "Research on the Rate-Dependent Fracture Energy of Al/HTPB Adhesive Interface", Advanced Materials Research, Vols. 834-836, pp. 670-675, 2014

Online since:

October 2013




* - Corresponding Author

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