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On the Form for the Plastic Velocity Gradient Lp in Crystal Plasticity
Mathematics and Mechanics of Solids, 2001It is usual to assume that the "velocity gradient" Lp associated with slip is KZ 1 a, 0 nK, where y, is the rate of shear of the Kth slip system defined by the slip direction so and the normal to the plane n,. The above expression, written directly as the linear superposition of instantaneous rates of shear over all the active slip systems, is ...
Rengarajan, G., Rajagopal, K. R.
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2013
Small spherical molecules are able to exhibit physical properties which reflect the ability to freely rotate in the ordered solid phase and are classed as plastic crystals. The property of achieving rotational freedom in the solid state can be observed in some polymer systems and is a precursor to understanding the dynamic of glassy polymers and the ...
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Small spherical molecules are able to exhibit physical properties which reflect the ability to freely rotate in the ordered solid phase and are classed as plastic crystals. The property of achieving rotational freedom in the solid state can be observed in some polymer systems and is a precursor to understanding the dynamic of glassy polymers and the ...
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2001
At first, let us recall some postulates of continuum mechanics. Any model of the crystal behaviour must satisfy the general rules discussed in the Chapter 2: the local principle of mass conservation (2.60); the principle of balance of linear momentum equivalent to Cauchy’s equations of motion (2.64); the principle of balance of angular ...
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At first, let us recall some postulates of continuum mechanics. Any model of the crystal behaviour must satisfy the general rules discussed in the Chapter 2: the local principle of mass conservation (2.60); the principle of balance of linear momentum equivalent to Cauchy’s equations of motion (2.64); the principle of balance of angular ...
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A nanoscale model of crystal plasticity
International Journal of Plasticity, 2003zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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On thermodynamics of crystal plasticity
Scripta Materialia, 2006Abstract It is argued in this paper that there are three distinctive physical situations in which the continuum descriptions of crystal plasticity are conceptually different. They are determined by the properties of the random field of dislocation density. One of the cases corresponds to conventional plasticity theory.
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2013
When crystals are strained above a certain limit, they cease behaving like elastic solids and become plastic. Plastic deformation is an irreversible, isovolume process, which results in a permanent shear strain after the shear stress that caused it has been removed. Hydrostatic pressure alone does not produce plastic deformation.
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When crystals are strained above a certain limit, they cease behaving like elastic solids and become plastic. Plastic deformation is an irreversible, isovolume process, which results in a permanent shear strain after the shear stress that caused it has been removed. Hydrostatic pressure alone does not produce plastic deformation.
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On the coupling of damage and single crystal plasticity for ductile polycrystalline materials
International Journal of Plasticity, 2021Bjørn Hakon Frodal +2 more
exaly
Crystal-Plasticity Fundamentals
2009Abstract This article presents the Schmid's law that describes the response of crystal structures to loading. It describes the Taylor model to calculate the uniaxial yield stress of an isotropic face-centered cubic aggregate in terms of critical resolved shear stress. The article discusses the stress-based approach of the Bishop and Hill
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