2023-07-06
Study on the effect of hygrothermal aging on the properties of three-dimensional woven composite materials with damage
2023-07-06 • Liang Xu, Guiting Wang, Song Zhou, Yanqing Huang
This study analyzed the hygroscopic characteristics and mechanical properties of three-dimensional woven composite materials under 70℃/85%RH conditions and with the presence of damage. First, the materials underwent hygrothermal aging tests, including analysis of mass change, moisture absorption rate, SEM microstructure, Fourier-transform infrared spectroscopy (FT-IR), dynamic mechanical analysis (DMA), and subsequent open-hole tensile and compression strength tests under different environmental conditions. Finall…