volume 34, issue 3, P174-189 1994
DOI: 10.1002/pen.760340303
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Abstract: Abstract The present paper proposes “Deformation Characteristics” (DC) as a new deformation measure of screw extrusion processes, based on the Green deformation tensor. In contrast to previous strain measures heuristically proposed by Mohr, et al., Mckelvey, and Pinto and Tadmor, the new DC can naturally incorporate the demixing phenomena and systematically take into account the three‐dimensional circulatory flow with the screw flight effect. Therefore, DC can be regarded as an improved strain measure. “Weigh…

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