The problem of reducing the stress concentration on the boundary of the cavities medium under the dynamic load action
Journal Title: Вісник Тернопільського національного технічного університету - Year 2017, Vol 88, Issue 4
Abstract
The effectiveness of the use of additional barriers in the form of tunnel cavities of the elliptic section located on the wave propagation to reduce the dynamic concentration of stresses is investigated in this paper. The distribution of dynamic hoop stresses on the boundary of cavities and radial stresses in a medium are studied on the basis of the method combining the use of Fourier transformation in time and the method of boundary integral equations. Fixed time snapshots of stress fields are developed.
Authors and Affiliations
Olena Mikulich, Vasyl’ Shvabjuk
Keywords
Related Articles
- EP ID EP280363
- DOI 10.33108/visnyk_tntu2017.04.076
- Views 46
- Downloads 0
Numerical modeling of complex two-level masstransfer in media of microporous particles taking advantage of the Crank-Nicolson method
Numerical solution for mathematical model of two-component diffusion in catalytic porous particles media has been proposed. The work is based on the results of previously proposed bi-porous model and considers diffusion...
The effect of initial deformations of the thick plate on its contact interaction with the ring punch
The calculation of the structural elements and mechanisms strength is one of the most important stages while their developing. Initial deformations are almost always available in the structural elements and machine parts...
Model of nanoporous medium with charged impurities
Mathematical model of nanoporous medium with two-level process of particles mass transfer in the presence of positively charged impurities was constructed and investigated. For the considered model, the theory of the pro...
Method of the quadratic interpolation of the discrete rhythm function of the cyclical signal with a defined segment structure
The article considers the problem of determining the rhythm function of some continuous cyclic function by the means of interpolation of the embedded in it discrete rhythm function, which is defined by the segment struct...
The proposal of the optimisation time reduction algorithm
In many cases, solving optimisation problems and a dynamic optimisation problem, in particular is time-consuming. This is due to the long time of calculation of the objective function value. For example, during optimisat...