Accelerated Testing Methodology for Durability of Carbon Fiber Reinforced Plastics

Abstract

　　　An accelerated testing methodology for measuring CFRP durability developed by the authors over many years is reviewed in this paper. First, the formulation for time-dependent and temperature-dependent statistical static, creep, and fatigue strengths for CFRP was done based on the matrix resin viscoelasticity. Second, these strengths of unidirectional CFRP were predicted statistically using the formulated equations. The predicted results were compared with experimentally obtained data measured from resin-impregnated CFRP strands as specimens of unidirectional CFRP. Finally, the statistical long-term tensile static, creep, and fatigue strengths are discussed in terms of the role of the matrix resin viscoelasticity.