Transcription of Viscoelasticity and dynamic mechanical testing
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Viscoelasticity and dynamic mechanical testing
1 AN004AN004 Viscoelasticity and dynamic mechanical testing A. Franck, TA Instruments GermanyKeywords: dynamic mechanical testing , Viscoelasticity , Hookean body, Newtonian fluid, relaxation time, ,VISCOELASTICITYMost materials are not purely viscous and oftenshow significant elastic behavior. Such materials arereferred to as viscoelastic materials and the keyparameter, the time determines whether viscous orelastic behavior in a slow deformation or flow processthe viscous behavior dominates, whereas in a shorttime process the material behaves predominatelyelastic.
rheological testing. Solids are tested in shear, tension, and bending using rectangular or cylindrical samples. The properties of fluids are measured using parallel plate, cone and plate, or concentric cylinder fixtures. The fixture used to test a material depends on several factors including the material’s stiffness,
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