Prediction model of modulus of elasticity of fiberboard.

To study the effects of vertical density profile(VDP) on fiberboard's modulus of elasticity(MOE),sub-function was used to simulate the VDP of fiberboard. MOE of fiberboard was obtained by elastic plate theory and VDP simulation model.The results indicated that VDP simulation model and MOE forecasting model accorded well with the testing data.There was an intensive relationship between the thickness of peak density and MOE of panels.Different from homogeneous fiberboard,MOE of heterogeneous fiberboard was related to the thickness of panels.It shows that VDP is a very important factor affecting fiberboard's MOE,and the prediction model of MOE of fiberboard has practicability to a certain extent.