DMA
A thermomechanical test that is performed by applying a cyclic strain on a specimen and measuring the resultant stress as temperature or frequency is changed. Conversely, a cyclic stress may be applied to a specimen and the strain may be measured as temperature or frequency is changed. This test may be used to analyze Glassy Transition Temperature, Storage Modulus, Loss Modulus, and Damping Coefficient.
Keywords: Tg, Glassy Transition, Storage Modulus, Loss Modulus, Damping Coefficient, ASTM D4065, ASTM D4440, ASTM D5279
• Dynamic Mechanical Analysis (DMA) of
polymers, elastomers, composites and
ceramics. The DMA allows for the modeling
of cyclic loading, stress relaxation, glass
transition temperature, and other high-end
material-based experiments.
• The DMA can also be used to simulate the
temperature, stress, and cyclic loading of seal
materials to determine their elastic response.
To characterize how well an elastomer
preforms as a seal compared to others.