EFFECT OF THERMAL CYCLE TIME ON THE MECHANICAL PROPERTIES OF GFRP MATERIALS

Abstract

 FRP is a composite material made by mixing fiber such as glass with resin plastic to increase its strength. In this study, focusing on the temperature application time when performing the thermal cycle application test and the dry treatment before tensile and bending tests, the temperature cycle application test was conducted in which the time of one cycle was changed for GFRP using unsaturated polyester resin. After that, a tensile test and a flexural test are performed, and the purpose is to clarify the change in mechanical properties of the target material depending on the temperature application time and water content. As a result, it was found that tensile and bending properties were not affected much by the temperature application time in the case of non-drying treatment before the cyclic test, and that strength were affected by the thermal cycle in the case of drying treatment.