H FATHI - MSc Student, Composites Research Laboratory, Center of Excellence in Experimental Solid Mechanics and Dynamics,School of Mechanical Engineering, Iran University of Science and Technology, Tehran ۱۶۸۴۶-۱۳۱۱۴, Iran
M.M Shokrieh, - Professor, Composites Research Laboratory, Center of Excellence in Experimental Solid Mechanics and Dynamics, School of Mechanical Engineering, Iran University of Science and Technology, Tehran ۱۶۸۴۶-۱۳۱۱۴, Iran
A SAEEDI - Postdoctoral fellow, Composites Research Laboratory, Center of Excellence in Experimental Solid Mechanics and Dynamics,School of Mechanical Engineering, Iran University of Science and Technology, Tehran ۱۶۸۴۶-۱۳۱۱۴, Iran

In the present study, the effect of pre-strain on the interfacial behaviour of shape memory alloy (SMA) reinforced polymer composites is experimentally investigated. Experimental pull-out tests were performed at three different pre-strain level (0, 2 and 4%). Results showed applying the pre-strain in the SMA wire followed by a thermal activation enhanced the debonding load between the SMA wire and epoxy matrix so that the maximum debond load increased about 171% and 255% for pre-strains of 2% and 4%, respectively. Moreover, the optical microscopy was used to show the effect of the generated recovery force in the SMA/Polymer dibond initiation.

SMA reinforced composites, Pull-out test, Interfacial shear strength, Pre-strain.