پاورپوینت درس خواص مهندسی پلیمرها 52اسلاید سه اسلاید به زبان فارسی میباشد The Engineering Properties of Polymers Linear Viscoelastic Behaviour All viscous liquids deform continuously under the influence of an applied stress – They exhibit viscous behavior. Solids deform under an applied stress, but soon reach a position of equilibrium, in which further deformation ceases. If the stress is removed they recover their original shape – They exhibit e ...