Low velocity response of simple geometry pultruded glass/ polyester composite

摘要

This paper describes an investigation into the low velocity impact response of relativelysimple geometry coupons taken from a pultruded glass/polyester product. The pultruded lay-up is a typicalthree ply desigh-a unidirectional fibre ply sandwiched between two continuous filament mat plies. Byemploying a simple geometry the impact response under transverse and longitudinal bending, and shearloading are considered. lmpact tests from low energy through to final failure were conducted using theinstrumented falling weight microscopy, and thermal deply all the major damage modes (delamination,fibre breakage and matrix cracking ) were related to the force-deflection responses.