W. Michaeli et P. Niggemeier, New results of material characterization for the improved calculation of shrinkage and warpage, J POLYM ENG, 21(2-3), 2001, pp. 263-279
The shrinkage and warpage behavior of polymers is governed primarily by the
temperature profile and their pvT behavior. Oversimplification in the desc
ription of the material results in an inaccurate prediction of the temperat
ure profile and hence in an inaccurate prediction of the shrinkage and warp
age behavior too. The influence of pressure and temperature on the thermal
conducivity and specific heat capacity and the influence of the cooling rat
e on the pvT behavior are, however, significant.