Journal of Materials Science, Vol.34, No.2, 395-406, 1999
Low velocity response of simple geometry pultruded glass/polyester composite
This paper describes an investigation into the low velocity impact response of relatively simple geometry coupons taken from a pultruded glass/polyester product, The pultruded lay-up is a typical three ply design - a unidirectional fibre ply sandwiched between two continuous filament mat plies. By employing a simple geometry the impact response under transverse and longitudinal bending, and shear loading are considered. Impact tests from low energy through to final failure were conducted using the instrumented falling weight impact test technique. Through a detailed analysis involving ultrasonic C-scan, optical microscopy, and thermal deply all the major damage modes (delamination, fibre breakage and matrix cracking) were related to the force-deflection responses.