Simulation of Compression Molding

Compression molding is a highly nonisothermal process. In the processing of blanks consisting of a thermoplastic reinforced with long fibers, the blanks are preheated and then placed in the mold, which is at a temperature lower than that of the blanks. In the case of thermoplastic prepregs, the 

When there is significant flow, the deformation of the blank can be complex. For example, the blank initially may be square but during compression may be required to deform more in one direction than the other. In any event, the modeling of the deformation may not be handled easily without the use of numerical techniques such as the finite element method. 

FIGURE 10.11 Two-dimensional flow in compression molding between two parallel platens. Flow occurs in the z and x directions only. 

From the conditions given in the problem it is possible to show 

Equation 10.43 is integrated using the following boundary conditions  

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Osswald, T. A. and Tucker IE, C. L. (1988), A boundary element simulation of compression mold filling, Polymer Engineering and Science, 28(7), 413-420. 

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