Results 11 to 20 of about 154,215 (248)
The gauge theory of dislocations: a nonuniformly moving screw dislocation
, 2010 We investigate the nonuniform motion of a straight screw dislocation in infinite media in the framework of the translational gauge theory of dislocations. The equations of motion are derived for an arbitrary moving screw dislocation.
Askes +30 more
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Improved screw theory using second order terms [PDF]
IEEE/RSJ International Conference on Intelligent Robots and System, 2003 The local displacement of an object is very useful for deciding grasp stability, generating trajectories, recognizing assembly tasks, and so on. To calculate this displacement, the screw theory is employed. It is equivalent to the first order Taylor expansion of the displacement.
J. Takamatsu, H. Kimura, K. Ikeuchi
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Dislocation constriction and cross-slip in Al and Ag: an ab initio study
, 2002 A novel model based on the Peierls framework of dislocations is developed. The new theory can deal with a dislocation spreading at more than one slip planes.
B. Joós +15 more
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Studies on positive conveying in helically channeled single screw extruders [PDF]
, 2012 A solids conveying theory called double-flight driving theory was proposed for helically channeled single screw extruders. In the extruder, screw channel rotates against static barrel channel, which behaves as cooperative embedded twin-screws for the ...
K. J. Wang +4 more
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A geometrical introduction to screw theory [PDF]
European Journal of Physics, 2013 This work introduces screw theory, a venerable but yet little known theory aimed at describing rigid body dynamics. This formulation of mechanics unifies in the concept of screw the translational and rotational degrees of freedom of the body. It captures a remarkable mathematical analogy between mechanical momenta and linear velocities, and between ...
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Anomalous Defects and Their Quantized Transverse Conductivities
, 1997 Using a description of defects in solids in terms of three-dimensional gravity, we study the propagation of electrons in the background of disclinations and screw dislocations.
A. P. BALACHANDRAN +4 more
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Effect of atomic scale plasticity on hydrogen diffusion in iron: Quantum mechanically informed and on-the-fly kinetic Monte Carlo simulations [PDF]
, 2008 We present an off-lattice, on-the-fly kinetic Monte Carlo (KMC) model for simulating stress-assisted diffusion and trapping of hydrogen by crystalline defects in iron.
A. Ramasubramaniam +4 more
core +2 more sources
Advanced Engineering Materials, EarlyView.The effect of temperature controllers that are commonly used in freeze‐casting is investigated in this work. Temperature controllers are observed to generate a voltage in the slurry. Microstructural alignment and ultimate compressive strength data show this voltage to interfere with the ability to align the microstructure using magnetic fields ...
Maddie A. Schmitz, Steven E. Naleway
wiley +1 more source
A Screw Theory of Timoshenko Beams
Journal of Applied Mechanics, 2009 In this work, the classic theory of Timoshenko beams is revisited using screw theory. The theory of screws is familiar from robotics and the theory of mechanisms. A key feature of the screw theory is that translations and rotations are treated on an equal footing and here this means that bending, torsion, and extensions can all be considered together ...
J. M. Selig, Xilun Ding
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Interplay between electronic topology and crystal symmetry: Dislocation-line modes in topological band-insulators [PDF]
, 2014 We elucidate the general rule governing the response of dislocation lines in three-dimensional topological band insulators. According to this ${\bf K}\text{-}{\bf b}\text{-}{\bf t}$ rule, the lattice topology, represented by dislocation lines oriented in
Juricic, Vladimir +3 more
core +3 more sources