plastic deformation


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Related to plastic deformation: ductility

deformation

 [de″for-ma´shun]
1. deformity, especially an alteration in shape or structure.
2. the process of adapting in shape or form.
elastic deformation temporary elongation of tissue when a prolonged force has been applied. See also creep.
plastic deformation permanent elongation of tissue when a prolonged nondisruptive mechanical force has been applied. See also creep.
References in periodicals archive ?
Zhu YT, Lowe TC, Langdon TG (2004) Performance and applications of nanostructured materials produced by severe plastic deformation. Scripta Materialia 51:825-830
The removal rate equation under plastic deformation satisfies V = [K.sub.1] x P x [H.sup.-1] x L and under crack deformation satisfies V = [K.sub.2] x [P.sup.5/4] x [H.sup.-1/2] x [T.sup.-3/4] x L.
Wang, "Structural signature of plastic deformation in metallic glasses," Physical Review Letters, vol.
Localised plastic deformations were researched at deformation states within interval [beta] = (-1/2;0).
Our functional of energy are the evaluations of the field of plastic deformation considering the quantity of energy of liberated plastic deformation by the specimen for unit of time [DELTA]G = [GAMMA]t, in the generated dislocations in the specimen under the regimens of quasi-relaxation.
Using the finite element method, the numerical model has been developed enabling to predict the behaviour of deformation zones during car impact loads that cause major plastic deformations in the case of damaged deformation zone elements.
(1988) Comparative analysis of plastic deformation effect on microscopic elastic limit of copper and nickel.
Plastic deformation can be one of the sneakier wear patterns to deal with.
Since tissue tearing is obviously not desirable, the stretch should produce either elastic extension or plastic deformation. When there is elastic extension the stretching produces a temporary elongation, which is good when the subsequent running is of relatively short duration and takes place soon after the stretching session.
(2) LSCM (or a high-resolution optical microscopy) is used to characterize the resulting surface deformation and identify the "onset" of plastic deformation. (3) Constant force scratch tests are conducted over a range of forces in the vicinity of the onset of plastic deformation.
In the investigated materials, material transfer and plastic deformation were identified as predominant wear mechanism under unlubricated sliding conditions.
All curves had an initial expansion (upward movement of TDC) before plastic deformation (downward movement of TDC).