Fracture Considerations for Design Safety

In this design problem we need to analyze the process in two sections (a) from the die to the die swell level, and (b) from the die swell level to the nip rolls. In the first section, the critical wall shear rate for melt fracture, taking into consideration the safety factor, will dictate the dimensions of the die. The volume of material in each bag is calculated as 2 X (61 X 69.6 x 0.002541) = 21.6 cm. The mass flow... 

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