Tire rubber testing procedure over a wide range of strain rates
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Military University of Technology, Faculty of Mechanical Engineering
Military University of Technology, Faculty of Mechatronics and Aviation, Warsaw
Publication date: 2017-04-15
Journal of Theoretical and Applied Mechanics 2017;55(2):727–739
The main aim of the paper is to present the procedure allowing one to determine correct mechanical characteristics of a rubber material compressed within a wide range of strain rates. In order to obtain a satisfactory wide spectrum of material data, a number of tests were conducted both under low and high strain rates with the use of a universal strength machine and split Hopkinson pressure bar set-up equipped with polymethyl methacrylate and 7075- T6 alloy bars. During the investigations, the necessity of performing pre-compression tests and the problem of specimen geometry were pointed out as key methodical requirements to guarantee achieving valid experimental data both from quasi-static and high strain rate tests.