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* Plasticity or plastic deformation is the opposite of elastic deformation and is defined as unrecoverable strain.
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Plasticity and plastic
* Brain Basics Synaptic Plasticity Synaptic transmission is plastic
Plasticity surface friction is also very low in comparison to the plastic deformation energy and can be neglected.
Plasticity spreads throughout the solid and at the limit load, the plastic zone becomes very large and the displacements become unbounded and the component is said to have collapsed.
Plasticity and deformation
* Plasticity ( physics ), in physics and engineering, plasticity is the propensity of a material to undergo permanent deformation under load
Plasticity in a crystal of pure metal is primarily caused by two modes of deformation in the crystal lattice, slip and twinning.
Plasticity and is
* Plasticity is the behaviour observed after the material is subjected to a yield stress :</ br > A material that behaves as a solid under low applied stresses may start to flow above a certain level of stress, called the yield stress of the material.
Plasticity is vital for coking as it represents its ability to gradually form specific plasticity phases during the coking process, measured by coal dilatation tests.
Plasticity in female choice is favored for adapting to changes in ecological and social environments.
Plasticity of the brain is when rewiring occurs because of brain damage, finding different neural pathways and not relying on the damaged structures.
* Plasticity: when a single genotype gives rise to a spectrum of phenotypes, the phenotype is said to have ' plasticity '.
Plasticity is the major explanation for the phenomenon.
Plasticity and .
Plasticity and memory formation in the amygdala are generated by activation of the neurons in the region.
They are: Repair and Plasticity ; Systems and Cognitive Neuroscience ; Channels, Synapses, and Circuits ; Neurogenetics ; Neural Environment ; and Neurodegeneration.
Plasticity under a spherical Nanoindenter in ( 111 ) Copper.
* R. Hill, The Mathematical Theory of Plasticity, Oxford University Press ( 1998 ).
* L. M. Kachanov, Fundamentals of the Theory of Plasticity, Dover Books.
* A. S. Khan and S. Huang, Continuum Theory of Plasticity, Wiley ( 1995 ).
* International Journal of Plasticity, Elsevier Science.
Scientific Realism and the Plasticity of Mind.
Plasticity can be categorized as short-term, lasting a few seconds or less, or long-term, which lasts from minutes to hours.
* R. Hill, " The Mathematical Theory of Plasticity ", Oxford University, 1950.
* J. Lubliner, " Plasticity Theory ", Macmillan Publishing Company, 1990.
" Neural Plasticity ", 12 ( 2-3 ), 183-196.
plastic and deformation
These defects are created during plastic deformation, such as hammering or bending, and are permanent unless the metal is recrystallized.
Mechanical properties of metals include ductility, i. e. their capacity for plastic deformation.
Forces larger than the elastic limit, or heat, may cause a permanent ( irreversible ) deformation of the object, known as plastic deformation or plasticity.
In 1934, Polanyi, at about the same time as G. I. Taylor and Egon Orowan, realised that the plastic deformation of ductile materials could be explained in terms of the theory of dislocations which had been developed by Vito Volterra in 1905.
In this sense, solids undergoing plastic deformation is a fluid, although no viscosity coefficient is associated with this flow.
* Slip ( materials science ), the process by which a dislocation motion produces plastic deformation
A de ¬ formation that does not completely recover after release of the stress is known as a plastic deformation.
Both plastic and elastic deformation may occur although one type predominates for a given material.
With some materials fragmentation does not occur because the stresses are relieved by plastic deformation.
As the applied pressure is further increased, the bonded solid is con ¬ solidated toward a limiting density by plastic And / or elastic deformation of the tablet within the die.
The stress resulting from the axial elastic recovery and the radial contraction can be relieved by plastic deformation.
Capping may occur if sufficient plastic deformation is absent.
Tableting materials must undergo dominant plastic deformation in order to compress and consolidate sufficiently to form a stable compact mass after ejection.
These eutectic carbides are much too large to provide precipitation hardening ( as in some steels, where cementite precipitates might inhibit plastic deformation by impeding the movement of dislocations through the ferrite matrix ).
The boundary between the lithosphere and the underlying asthenosphere is defined by a difference in response to stress: the lithosphere remains rigid for very long periods of geologic time in which it deforms elastically and through brittle failure, while the asthenosphere deforms viscously and accommodates strain through plastic deformation.
In plastic deformation pressure is applied to the protolith, which causes it to shear or bend, but not break.
The issue involves " a limited number of units " which could potentially " generate heat around the DC jack inlet and frame of LCD screen, which creates the potential of deformation of the plastic casing ".
For many applications, plastic deformation is unacceptable, and is used as the design limitation.
At this point plastic deformation begins.
However, an object in the plastic deformation range will first have undergone elastic deformation, which is reversible, so the object will return part way to its original shape.
Soft thermoplastics have a rather large plastic deformation range as do ductile metals such as copper, silver, and gold.
Hard thermosetting plastics, rubber, crystals, and ceramics have minimal plastic deformation ranges.
One material with a large plastic deformation range is wet chewing gum, which can be stretched dozens of times its original length.
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