The main difference between elastic deformation and plastic deformation … stress-strain curve for materials represents the behavior of materials under loading. Key difference: The main difference between a plastic body and an elastic body is based on individual their ability to regain their shape and size after an external force is applied to the bodies. Elastic behavior versus viscoelastic behavior. Based on Hill’s (1965 a ) model, tensile stress-strain curves and the associated yield surfaces are calculated for polycrystals and composites comprised of face-centred cubic crystals. The materials act elasticity if loaded within the elastic region. In this article we will discuss about the plastic deformation of metals with its diagram. Thus, it is easier to understand these properties in terms of physics. For stresses beyond the elastic limit, a material exhibits plastic behavior. Elasticity is the ability of a body to resist any permanent change to it when stress is applied. Stress-strain behaviour of polycrystals and composites is explored with self-consistent models based on the elastic-plastic properties of the single crystal constituents. Stresses beyond the elastic limit cause a material to yield or flow. I less you here the definition given Mendelson1968: "If one takes a thin strip of a metal such as aluminium and clamps one end and applies a bendig force to the other end, the end of the strip will deflect. The difference between elastic materials and viscoelastic materials is that viscoelastic materials have a viscosity factor and the elastic ones don’t. the linear elastic region is followed by a nonlinear plastic region. 26 Downloads; Abstract. When stress is gradually increased beyond the elastic limit, the material undergoes plastic deformation. Conclusion.

Elastic Deformation: Atoms do not slip pass on each other during elastic deformation. This deformation can be elastic or plastic depending on the type of the substance, and the extent of stress applied.

Deformation of a substance can occur due to the application of a stress. Download PDF for free. This difference in the behavior of the material is based on their elastic and plastic nature which is explained using Hooke’s law. From this we calculate the elastic moduli and the elastic and plastic collapse stresses for ideal two-dimensional cellular materials. High core deformations at relative high stress levels are possible before global core failure, as found in aluminium foldcore tests in compression, compaction and impact. Both, elastic and plastic materials are widely applicable and used in the field of science and technology.

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