Introduction: Posterior shoulder dislocation associated with fracture of the lesser tuberosity is considered as a rare shoulder trauma. It can lead to the locked shoulder with a very high possibility of unsuccessful closed reduction. Case Presentation: In this case, the patient was a 30-year-old male motorcyclist with the right shoulder injury who had posterior shoulder dislocation with lesser ...

Predicting atomistic properties of a dislocation is a first step toward an understanding of plastic behavior of materials, in particular BCC metals. The core structure and Peierls stress of a screw dislocation in BCC metals have been studied over the years using the first-principles and empirical methods, however, their conclusions vary due to the inefficiency of the methods. We have executed f...

A closed-form solution is obtained for the interfacial edge crack between two bonded dissimilar orthotropic strips loaded by antiplane point loading in form of screw dislocation or line force. Conformal mapping and existing dislocation solutions are utilized for constructing the fundamental solution of the problem. The stress intensity factor (SIF) and the energy release rate (ERR) are obtained...

We investigate non-inertial effects induced by a rotating frame on non-relativistic quantum harmonic oscillator as well of the topology associated to screw dislocation, which corresponds distortion vertical line into spiral. To do this, we obtain analytical solutions time-independent Schr\"odinger equation for this potential in background. The expressions energy spectrum are obtained and four s...

Dislocation structures can be directly related to the fatigue properties of metals, such as strength, including limit and saturation stress. We present an indirect dislocation-structure-based method evaluate local stresses for in-depth analysis sleeper screw failures, there is little knowledge about load these failures. The screw, fastening baseplates rails sleepers, a small but critical compon...

The core structures of screw and edge dislocations on the basal and prism planes in Mg, and the associated gamma surfaces, were studied using an ab initio method and the embedded-atom-method interatomic potentials developed by Sun et al and Liu et al. The ab initio calculations predict that the basal plane dislocations dissociate into partials split by 16.7 Å (edge) and 6.3 Å (screw), as compar...

In this paper, the solution of a moving Volterra-type screw dislocation in an orthotropic layer, bonded between two piezoelectric layers is obtained using complex Fourier transform. The dislocation solution is then employed as strain nuclei to derive singular integral equations for a medium weakened by multiple moving cracks. These equations, which are classified as, Cauchy singular equations, ...

in this paper, the solution of a moving volterra-type screw dislocation in an orthotropic layer, bonded between two piezoelectric layers is obtained using complex fourier transform. the dislocation solution is then employed as strain nuclei to derive singular integral equations for a medium weakened by multiple moving cracks. these equations, which are classified as, cauchy singular equations, ...

Continuum models, based upon both the Volterra and the Peierls descriptions of a screw dislocation ahead of a mode III crack, are used to evaluate the critical loading for dislocation nucleation at the tip of a ® nite pre-blunted crack. Results are presented for various crack tip root radii, for several crack lengths. Moreover, the e€ ect of ledge formation at the crack tip is evaluated. It is ...