Engineering Transactions, 61, 4, pp. 289–300, 2013

Mechanical Properties of AW8S-V Polyester Composite under Various Loading Conditions

Wojciech MOĆKO
Institute of Fundamental Technological Research PAN; Motor Transport Institute

Tadeusz SZYMCZAK
Motor Transport Institute

Zbigniew L. KOWALEWSKI
Institute of Fundamental Technological Research PAN

This article presents the results of an analysis of the mechanical properties of the AW8S-V polyester composite reinforced by a roving fabric under tensile loading. The stress-strain curves
show an increase of the maximum stress and elastic modulus with increasing strain rate. By contrast, an increase of the temperature led to decrease of the maximum stress and elastic modulus. It is also shown that, failure mechanisms are dependent on the loading type. Shear cracks occurred in the specimens under quasi-static loading whereas composite layers damage was observed under dynamic loading. Temperature increase resulted to stronger fragmentation of the specimens.
Keywords: polyester composite; Hopkinson bar; high strain rate; damage
Full Text: PDF


Copyright © 2014 by Institute of Fundamental Technological Research
Polish Academy of Sciences, Warsaw, Poland