Heat and Moisture Absorption Effects in Composites; Theory and Experiments

摘要

Analysis of heat and moisture effects in elastic and visco-elastic solids leads to the conclusion that these are not only environmental processes but, in dynamical cases they always appears together and their coupling is never negligible. Experiments were conducted to gain thermo-hygro-visco-elastic properties for fiber reinforced composites. The fiber orientation, time and temperature dependence of complex moduli, thermal conductivity, thermal expansion and moisture absorption were tested. The possibility of electrical analogies was investigated.