Experimental Determination and Modeling of Thermal Conductivity Tensor of Carbon/Epoxy Composite
In this study, the effective thermal conductivity tensor of carbon/epoxy laminates was investigated experimentally in the three states of a typical LCM-process: dry-reinforcement, raw and cured composite. Samples were made of twill-weave carbon fabric impregnated with epoxy resin. The transverse thermal conductivity was determined using a classical estimation algorithm, whereas a special testing apparatus was designed to estimate in-plane conductivity for different temperatures and different states of the composite. Experimental results were then compared to modified Charles & Wilson and Maxwell models. The comparison showed clearly that these models can be used to accurately and efficiently predict the effective thermal conductivities of woven-reinforced composites.
M. Merklein and H. Hagenah
D. Lecointe et al., "Experimental Determination and Modeling of Thermal Conductivity Tensor of Carbon/Epoxy Composite", Key Engineering Materials, Vols. 504-506, pp. 1091-1096, 2012