A Method for Bond Strength Evaluation for Laminated Structures with Application to Ultrasonic Consolidation

A push-pin type test is proposed as a general approach for bond strength evaluation normal to bonded areas for laminated structures. The evaluation method includes experiment and finite element (FE) simulation. The method has been successfully applied to evaluation of the bond strength of laminated structures made with ultrasonic consolidation (UC). Bond strength varying with UC process parameters has been studied. Based on the results of the simulation and the experiment, a quantitative correlation has been identified between the percent of bonded area and bond strength for UC.

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