Advanced Accelerated Testing Methodology for Life Prediction of CFRP laminates

Abstract

The advanced accelerated testing methodology (ATM-II) for the long-term life prediction of CFRP laminates exposed to an actual loading having general stress and temperature history is proposed in this paper. Three conditions as the basis of ATM -II are introduced with the scientific bases. The long term fatigue strength of CFRP laminate under an actual loading is formulated based on the three conditions. The creep compliance and time-temperature shift factors of matrix resin, which perform an important role for time and temperature dependence of long-term life of CFRP laminates, are also formulated based on the modified time-temperature superposition principle. The applicability of ATM-II is confirmed by predicting the long -term fatigue strength of CFRP laminates for marine use.