Moisture Absorption Effects on Open-Hole Fully-Reversed Tension-Compression Fatigue Damage Tolerance of High Temperature Polymer Matrix Composites

摘要

High performance aeronautics and aerospace applications of polymer matrix composites require long-term durability that is able to withstand exposure to extreme temperature, high relative humidity and oxidation environments. Moisture is one of critical environmental factors that can be damaging to composite properties. Generally, the absorption of moisture can reduce a glass transition temperature Tg and mechanical properties by matrix polymer plasticization, swelling, cracking and fiber/matrix interface damage. This paper is focused on moisture absorption effects and open-hole fatigue damage tolerance of the interesting and candidate high temperature polymer matrix composite materials for Next Generation Supersonic Civil Transportation.