Abstract
Some recent efforts in the application of rate theory to the plastic deformation of polymers are reported. Concepts such as the activation strain volume are defined. The volumetric effects during the deformation of polymers are discussed in detail. Evidences are provided to show that plastic deformation is not a near-equilibrium process under usual conditions. The shear-strain volume is found to decrease with shear stress, obeying a general correlation for all materials. The nature of simultaneous processes is described briefly and applied to the transition region so as to map out domains for individual processes. Work hardening in tension is formulated by assuming a certain shear stress needed for sliding between molecules and the gradual orientation of chain directions toward the tensile axis.
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Li, J.C.M., Pampillo, C.A., Davis, L.A. (1973). Rate Processes in the Plastic Deformation of Polymers. In: Kausch, H.H., Hassell, J.A., Jaffee, R.I. (eds) Deformation and Fracture of High Polymers. Springer, Boston, MA. https://doi.org/10.1007/978-1-4757-1263-6_13
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DOI: https://doi.org/10.1007/978-1-4757-1263-6_13
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