Evaluation of Adhesive Joint Tensile Strength by Elastic-Wave Transfer Function Method
New nondestructive evaluation method of ETFuM (Elastic-wave Transfer Function Method) was developed and applied to evaluate adhesive joint strength. Two kinds of specimen with smooth and rough surface for bonding, and three kinds of epoxy adhesive (clear, with ceramic and with rubber compound) were used.
Good correlation was seen between adhesive tensile strength and the evaluation Ha, the parameter of ETFuM, within the range of measurement made in this work, It is, therefore, concluded that the method presented here is useful to a certain extent in making evaluations of adhesive joints intended for use in actual products.
KeywordsTransfer Function Test Piece Adhesive Joint Epoxy Adhesive Elastic Wave Propagation
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