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In physics and materials science, plasticity (also known as plastic deformation) is the ability of a solid material to undergo permanent deformation, a non-reversible change of shape in response to applied forces.
Pages in category "Plasticity (physics)" The following 39 pages are in this category, out of 39 total. This list may not reflect recent changes. ...
Plasticity (physics), in engineering and physics, the propensity of a solid material to undergo permanent deformation under load; Behavioral plasticity, change in an organism's behavior in response to exposure to stimuli; Neuroplasticity, in neuroscience, how entire brain structures, and the brain itself, can change as a result of experience
The SCGL model is used extensively by the shock physics community. The Zerilli–Armstrong (ZA) model [ 28 ] is a simple physically based model that has been used extensively. A more complex model that is based on ideas from dislocation dynamics is the Mechanical Threshold Stress (MTS) model. [ 29 ]
This plot shows a typical meridional profile of several plasticity models: von Mises, linear Drucker–Prager, Mohr–Coulomb, Gurson, and Bigoni–Piccolroaz. The upper portion of the plot depicts yield surface behavior in triaxial extension and the lower portion depicts yield surface behavior in triaxial compression.
Depending on the type of material, size and geometry of the object, and the forces applied, various types of deformation may result. The image to the right shows the engineering stress vs. strain diagram for a typical ductile material such as steel.
The study of the physics of continuous materials: Solid mechanics The study of the physics of continuous materials with a defined rest shape. Elasticity Describes materials that return to their rest shape after applied stresses are removed. Plasticity Describes materials that permanently deform after a sufficient applied stress. Rheology
The plane stress, anisotropic, Hosford yield surface for four values of n and R=2.0. The Logan-Hosford yield criterion for anisotropic plasticity [2] [3] is similar to Hill's generalized yield criterion and has the form