Simultaneous measurement of elastic constants from dynamic mechanical analysis with digital image correlation

Dynamic mechanical analysis (DMA) method is used for measuring viscoelastic properties of materials. The governing equations calculating modulus neglect shear deflection component and use an assumption constant Poisson's ratio in absence methods that can conduct full field deformation measurement. present work focused on using in-situ imaging to obtain the displacement during specimen deformation. Digital image correlation calculate values over temperature strain implement a correction factor complex moduli calculations. developed this will provide accurate measurements polymers, especially materials whose are very sensitive variations. • In-situ ratio. bulk calculated with respect varying help accurately characterizing soft