ASTM D2990 – Creep and Creep-Rupture Testing of Plastics – Testing Equipment
1. Introduction Plastics and polymeric materials exhibit viscoelastic behavior, meaning that their deformation depends not only on the magnitude of the applied stress but also on time, temperature, loading rate, and environmental conditions. For this reason, the results of a conventional short-term tensile, compression, or flexural test cannot by themselves predict how a plastic component…