Dynamic mechanical analysis (DMA) is a technique used to study mechanical properties of objects, typically viscoelastic properties of polymer materials. Traditionally, this involves understanding the viscous and elastic mechanical properties of a polymeric material under a constant deflection. In this case, DMA is a powerful tool for monitoring the strain of a material when a dynamic sinusoidal stress is applied and allows the understanding of complex time dependent moduli. Common applications for DMA include, but are not limited to: - Rubber and Tires - Polymer Manufacturing - Automotive - Electronics - Aerospace - Construction Many time-, frequency- and temperature-dependent properties of polymers can be elucidated from DMA experimentation. The storage modulus (E’ or G’) of a material can be measured, along with the loss factor and angle. By modulating the temperature with respect to a constant stress, the glass transition temperature can also be measured. Fatigue experimentation can be used to track the changes within a polymer material as it is cyclically loaded and may shed insight into its long-term behaviour. Dynamic Mechanical Analysis Testing Services: - Viscoelastic materials - Rubber materials - Polymer composition - Glass transition temperature determination - Fatigue testing Dynamic Mechanical Analysis Testing Services: Frequency Range: 0.00001 to 1000 Hz Maximum Dynamic Force: 300N peak to peak Maximum Dynamic displacement: 12 mm peak to peak Temperature Range: -150 – 500°C Modulus Range: 250– 3×10 12 Pa Measurement Range: > 7 decades Sample Holders: DMA sample holders unlock additional test methods. The following test configurations are available: - Bending (3-point and cantilevered) - Compression - Universal Tension Jaw - Shear (solids and films) Test Methods: Our DMA unit is compliant with many international standard test methods. For a list of our standard test method offerings, check out our ASTM, ISO, and EN Standard Test Services page. Materials tested include Rubbers & Tires, Polymers & Composites, Metals & Alloys, Glass & Ceramics, Paints & Coatings, Aerospace & Defense.
