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Energy Based Mechanical Characteristics of Polymers POM-C, PET, PA6, PVC, PVDF

Obst M., Kurpisz D., Mencel K.

Machine Dynamics Research

2015

Vol. 39, No. 4

93-106

Classical carried out tensile tension test relating to the basic research of mechanical properties of materials doesn’t always provide comprehensive information about the realistic nature of discussed materials. To complement research of typical lead material properties characteristics, you have to consider the accurate measuring of the transverse strain of specimens which can be used as the basis to assess the dangers relating to said materials which can be defined as the partial or total loss of its mechanical properties. In engineering practices, it can be observed that there is a the lack of indications which could be useful for engineers and could help to take an accurate assessment during polymers mechanical components design. Results obtained during tensile tension test of chosen polymers will be based on strain energy related, polymer models, which accurately allow us to estimate various conditions to be compromised by plastic flow or total material destruction. Research was done for rods made of POM-C, PET, PA6, PVC, PVDF, applied as constructible materials in machines, processing, agricultural, food and the chemical industry. Investigated polymers showed interesting elastic properties, especially in the event of very flexible materials, where strain energy changes are possible to estimate.