THE MECHANICAL RESPONSE OF TEXTILE COMPOSITE MATERIALS TO DYNAMIC IMPACT TESTS

Abstract

This paper presents an analysis of the results obtained from the dynamic impact of composite materials reinforced with woven fabrics. The specimens used were manufactured by reinforcing an epoxy resin with woven fabric EWR300 made of E-glass fibers. The specimens were made though different manufacturing methods. The hand lay-up technology is used to prepare the specimens with different pressures (low and high pressure) in the molding step. The energy method and experimental tests are employed to determine the response of the composite material subjected to low velocity impact. The composite specimens were subjected to the flexural test (the three points method - Charpy test) and at the impact experiments of impactor in low velocity impact on the rectangular plates. The results obtained were compared taking into account the two kinds of manufacturing methods.