Entity

Time filter

Source Type


Mirsalimov V.M.,Azerbaijan Technical University | Veliyev F.E.,Institute of Mathematics and Mechanics of NAS of Azerbaijan
Acta Polytechnica Hungarica | Year: 2013

A plane problem of failure mechanics is considered for concentrically integrated cylinders. It is assumed that the drawing die (internal cylinder) is negative allowance strengthened by means of external cylinder (holder), and near the surface of the drawing die there are N arbitrarily located rectilinear cracks of length 2lk (k=1,2,...,N). Theoretical analysis on definition the negative allowance providing minimization of failure parameters (stress intensity factors) of drawing die was carried out on minimax criterion. A simplified method for minimization the failure parameters of a hard alloy drawing die was separately considered. Source


Zolgharnein E.,Institute of Mathematics and Mechanics of NAS of Azerbaijan | Mirsalimov V.M.,Institute of Mathematics and Mechanics of NAS of Azerbaijan
Acta Polytechnica Hungarica | Year: 2012

The problem of fracture mechanics of crack nucleation in plunger pair bushing is considered. It is assumed that under the repeated reciprocating motion of a plunger there happens crack nucleation and a failure of materials of pair elements. Crack nucleuses are simulated by a bridged prefracture zone that is considered as areas of weakened interparticle bonds of the material. It is assumed that the inner boundary of the bushing is close to the annular one and has rough surfaces. Source


Bilalov B.,Institute of Mathematics and Mechanics of NAS of Azerbaijan | Guliyeva F.,Institute of Mathematics and Mechanics of NAS of Azerbaijan
Complex Analysis and Operator Theory | Year: 2015

The concept of t-frame associated with the tensor product of Hilbert spaces is introduced. All the properties of ordinary frames are extended to this case. Noetherian perturbation of t-frames is considered. The stability of t-frameness with respect to quadratic closeness is proved. © 2014, Springer Basel. Source


Mirsalimov V.M.,Institute of Mathematics and Mechanics of NAS of Azerbaijan | Kalantarly N.M.,Institute of Mathematics and Mechanics of NAS of Azerbaijan
Periodica Polytechnica: Civil Engineering | Year: 2015

A model of a circular disk fracture based on consideration of the fracture process zone near the curvilinear crack tip is suggested. It is considered that mixed boundary conditions are given on the boundary of the disk. It is accepted that the fracture process zone is a finite length layer with a material with partially broken bonds between its separate structural elements (end zone). Analysis of equilibrium limit of the curvilinear crack is performed on the basis of ultimate extension of the material bonds. © 2015, Technical University of Budapest. All rights reserved. Source


Mirsalimov V.,Institute of Mathematics and Mechanics of NAS of Azerbaijan | Kalantarly N.,Institute of Mathematics and Mechanics of NAS of Azerbaijan
Mechanika | Year: 2015

Interaction of arbitrarily located system of rectilinear bridged cracks is considered. It is assumed that the mixed boundary conditions are given on the boundary of the circular disk. It is accepted that the fracture zone is a finite length layer containing a material with partially disturbed bonds between its separate structural elements (end zone). Existence of bonds between the cracks surfaces in the end zones is simulated by application of cohesive forces caused by the presence of bonds to the crack surfaces. Limit equilibrium analysis of cracks is formulated, taking account the criterion of the limit traction of the bonds in the material at the edge of the cracks end zone. Source

Discover hidden collaborations