SIMULATION AND VISUALIZATION OF STRESS WAVE PROPAGATION IN COMPOSITE LAMINATE WITH INTERPHASE LAYER

Abstract In order to obtain a physical interpretation of experimental data obtained in ultrasonic-acoustic measurements, we simulate the experiment by numerical calculation on a supercomputer. The composite we discuss here is a two dimensional rectangular beam which has one reinforcement layer located at middepth. The Finite Strip Method (FSM) is used to formulate the composite and modal analysis and Duhatnel integral equation are also used to obtain its dynamic response for the impulsive incident wave. Making use of the Visualization Technique of Stress Wave Propagation (VTSWP) we obtain the animated simulation of stress wave propagation in a composite. The effect of gradient distribution of the stiffness in the interphase layer on the wave energy transmission from matrix to fiber is also analyzed as an amplitude transmission coefficient (ATC).