Abstract: This paper takes carbon fibre/epoxy laminate as the research object, and uses ABAQUS finite element analysis software to numerically simulate the thermal response process of carbon fibre/epoxy laminate under high temperature environment, combined with the experimental analysis of the thermal response behaviour of the material with different layer thickness, to verify the feasibility of the simulation. It is found that as the thickness increases, the time to reach the steady-state temperature is delayed and the steady-state temperature decreases, and the temperature rise rate inside the material decreases with the increase of depth from the heated surface, and the decreasing trend decreases with the increase of depth; the steady-state temperature and the steady-state thermal conductivity are greater when the heat flow direction is distributed along parallel to the carbon fibre layer than along vertical, and the distribution of carbon fibre along parallel to the heat flow transfer direction is more beneficial to heat transfer.

Key words: carbon fiber/epoxy laminate, thermal response behavior, high temperature environment, steady state temperature, steady-state thermal conductivity