THERMAL STRESSES IN COATINGS ON CARBON-CARBON COMPOSITES

Numerical Study on Residual Thermal Stresses in Carbon Fibre Pullout

This paper investigated the effect of residual thermal stresses on carbon fibre pullout by using cohesive zone modelling. The finite element method was applied to analyse the residual thermal stress components along the interface between the fibre and matrix due to curing. A comparison study on the anisotropic and isotropic material properties are considered using four typical carbon fibres, T3...

Thermal Properties of Hybrid Carbon Nanotube/Carbon Fiber Polymer Composites

Carbon fiber reinforced polymer (CFRP) composites possess many advantages for aircraft structures over conventional aluminum alloys: light weight, higher strengthand stiffness-to-weight ratio, and low life-cycle maintenance costs. However, the relatively low thermal and electrical conductivities of CFRP composites are deficient in providing structural safety under certain operational conditions...

On the lack of thermal percolation in carbon nanotube composites

Recent experiments demonstrated very low percolation thresholds for carbon nanotube composites signified by steep increases in electrical conductivity at very low nanotube loadings. By contrast, thermal transport measurements, even on the same samples, showed no signature of the percolation threshold. These contrasting behaviors are particularly intriguing considering that both transport proces...

Thermal conductivity enhancement of carbon fiber composites

The effective thermal conductivity enhancement of carbon fiber composites is investigated in this contribution using a three-dimensional numerical method. First a more realistic three-dimensional distribution of fibers dispersed in a matrix phase is reproduced by a developed random generation-growth method to eliminate the overrated inter-fiber contacts by the two-dimensional simulations. The e...

Interface effect on thermal conductivity of carbon nanotube composites