Effect of Gamma Ray on rheological and mechanical properties for poly styrene-bentonite composite by using Ultrasonic Waves technique

Abstract

Abstract Depending on study mechanical properties and acoustic idices for polystyren-bentonite composite samples by using ultrasonic waves technique at non-destructive test. The mechanical dynamic variables were studied by using technique of velocity of an ultrasonic wave pulse from which wave velosity, elastic modulus, dencity, shear viscosity, absorbtion coefficient, relaxation time, relaxation amplitude, compressibility and wave length at room temperature after and befor irradiation. The results showed that all properties increase lineary or exponentially with increasing of composite concentration while decreasing specific acoustic impedance, elastic modulus, velosity and wave length.