Measurement of strain rate dependent material properties for polymers and their prediction from normal tensile tests

摘要

Present market forces dictate that the automotive industry must increase passenger safety. Since polymer material behavior are sensitive to speed, the determination of material data at crash relevant strain rates is of great importance. This study is concerned with a new method to predict the material behavior of polymers at high strain rates. The material data is determined with normal tensile tests and this material data is subsequently extrapolated to high strain rates. The results are compared and evaluated with those from high speed tensile tests.