Numerical Study on Residual Thermal Stresses in Carbon Fibre Pullout
نویسندگان
چکیده
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, T300, AS4, T800HB-40B and IM7. The results show that the simplified isotropic fibres model would overestimate the compressive residual axial and interfacial radial stress. The anisotropic material properties of the fibres should be considered in the theoretical study of carbon fibre pullout. The results also show that the influence of the residual thermal stresses is significant at the stage of frictional sliding after interfacial debonding.
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