Abstract
This paper is concerned with the investigation of flexural fracture behavior of carbon/aramid hybrid unidirectional FRP laminates (C/A hybrid FRP) over relatively wide ranges of both temperature and deflection rate in conjunction with similar investigation of CFRP and AFRP laminates. The results obtained are summarized as follows: (1) The flexural fracture behavior of C/A hybrid FRP changes with temperature and strain rate. The fracture behavior is clas.. sified into two stages by temperature and strain rate. (2) The flexural fracture of C/A hybrid FRP is triggered by the compressive fracture of CFRP layer in the range of high temperature and ' low strain rate, in which the flexural strength decreases with temperature and increases with strain rate remarkably. (3) The flexural fracture of C/A. hybrid FRP' is triggered by the tensile fracture of AFRP layer in the range of low, temperature and high strain rate, in which the flexural strength changes scarcely with temperature but decreases remarkably with strain rate.
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