Abstract
ABSTRACTThe interface strength of a Shape Memory Polymer – Stainless Steel (SMP-SS) laminate system has been studied under a wide range of test conditions. The adhesive strength of the laminates has been explored using the peel test at room temperature as well as the glass transition temperature of the SMP. The analysis was also repeated at varying speeds and SMP thickness in order to quantify the effect of strain rate and adherend thickness on the bond strength of the laminate.The experimental tests have been validated using finite element analysis of the SMP – SS laminate system. The finite element study further explores the role of polymer stresses and strains in the polymer film and adhesive layer in inducing delamination and wrinkling.Significant decrease in strains in the adherend are observed on increasing its thickness. The adhesive strength of the laminate system is found to decrease at higher temperatures. Also the adherend is observed to wrinkle at longitudiunal strains nearing 35%.
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