Abstract:The temperature field distribution in the two-layered shell is simulated numerically by using the finite element method. The influence of material properties of the outer shell on the temperature rise in the inner shell is analyzed under a given laser power. The results indicate that the difference of material properties of the outer shell in specific, thermal conductivity as well as its thickness can greatly change the temperature of the inner shell. The thermal wastage in the inner shell between the inner and outer shell are investigated in the process of computation. Moreover, the effect of temperature-depending material properties of the inner shell on its temperature rise is presented. And some significant conclusions are reached by comparing with the temperature field distribution of the one-layered shell irradiated by the intensive laser beam.