Research Information System
International Conference on Engineering Technologies (ICENTE’17), Konya, Turkey, 7 - 12 December 2017, pp.152-153
This study will be concerned with sandwich composite materials, a type of composite material commonly used in the world. It will be compared with the production methods of sandwich composites, which are generally important in the yacht and maritime sector. These methods are vacuum infusion and hand lay-up. Both production methods shall be prepared and produced under equal variables (room temperature, pressure, pvc type, glass fiber arrangement, etc.). It is necessary to calculate the amount of energy (SERR) that emerges to find the fracture properties of sandwich composites. Single and double cantilever beam (SCB and DCB) test methods were used to calculate the strain energy release rate (SERR) value. modified cracked sandwich beam (MCSB) experiments were performed on composite sand specimens Cracked sandwich beam (CSB) and modified sand sandwich composite specimens which were cracked on. The Mod-I and Mod-II values on the samples were compared. In the tests, the effect of the difference in the production method on the sandwich composite material was investigated. Results related to the preference of production methods were obtained. Finally the mechanical value of the sample produced by the vacuum infusion method is about 1.5 times higher than that of the sample produced by the hand lay-up method.
KEYWORDS - CB test, CSB test, SCB test, MCSB test, VCCT, SANDWICH COMPOSITE,fracture