抄録
Our role in the Center of Innovation (COI) project in Kanazawa Institute of Technology (KIT) was to evaluate the long-term durability of CFRP structures developed in this project. Komatsu Matere Co., Ltd. has developed a CFRP strand rod using pultrusion molding method, with a thermoplastic epoxy resin developed at Innovative Composite Center (ICC) of KIT, which has already been put to practical use in various fields. As a specific target, the CFRP strand, which is the basic unit of this CFRP stranded wire, was used for durability evaluation. The long-term life of this CFRP strand under constant loading and cyclic loading under dry and wet conditions was evaluated statistically using the accelerated testing methodology (ATM) which we have developed over many years. All these results have been published as papers in international academic journals. As described herein, after details of our developed ATM are introduced, we discuss the long-term durability of CFRP strands evaluated using ATM as the COI project.
