Torsional Pendulum for Plastic Materials under Tensile Strain

Abstract
This paper describes a torsional coupled pendulum combined with a tensile tester to measure simultaneously static tensile properties and dynamic and static shear properties of viscoelastic materials at constant temperature. The thermal environment of the sample is a liquid, permitting more efficient heat transfer and control in the sample itself. Several representative data are presented on carbon black filled rubber and highly filled rubber propellant samples.