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Journal of Plastics Technology 2010/05

Comparison of viscoplastic Properties for Polycarbonate, Polypropylene, and High Density Polyethylene

The viscoplastic behavior of high density polyethylene, polypropylene, and polycarbonate under uniaxial tensile loading at constant strain rate and large strains was studied. Standard ASTM samples of the polymers cast by injection molding were tested at room temperature and constant crosshead speed; testing was conducted in the range of 5 to 300 mm/min. A single constitutive relation which captures the plastic flow behavior of all three polymers was found as a function of strain and strain rate in the range of 0.01 to 0.1 s<sup>-1</sup>. The values of the model parameters for each polymer are presented. A relation for the yielding of the polymeric materials as a function of strain rate is also reported.

Prof. Barbara O. Calcagno1,2 | Prof. Dr. Roderic Lakes2 | Prof. Dr. Tim Osswald2 | Prof. Dr. Wendy Crone2
1 University of Puerto Rico, Mayagüez
2 University of Wisconsin, Madison

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The Journal

The Journal of Plastics Technology is a peer reviewed internet periodical published under the auspices of the Scientific Alliance of Polymer Technology (WAK)


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International Polymer Processing

International Polymer Processing, the journal of the Polymer Processing Society, is a discussion forum for the world-wide community of engineers and scientists in the field of polymer processing.

The journal covers research and industrial application in the very specific areas of designing polymer products, processes, processing machinery and equipment.


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The Journal of Plastics Technology is indexed in SCOPUS, the largest abstract and citation database of peer-reviewed literature.