scholarly journals Stretched-deformed state of closed conical shells with complex rotation

2019 ◽  
Vol 0 (102) ◽  
pp. 191-198
Author(s):  
Petro Lizunov ◽  
Eduard Kryksunov ◽  
Oleksandr Fesan
2020 ◽  
Vol 6 (1 (108)) ◽  
pp. 34-41
Author(s):  
Oleg Markov ◽  
Volodymyr Panov ◽  
Sergii Karnaukh ◽  
Anton Khvashchynskyi ◽  
Roman Zhytnikov ◽  
...  

2011 ◽  
Vol 0 (4) ◽  
pp. 72
Author(s):  
Grigoriy Golka ◽  
Anton Bilostotskiy ◽  
Igor Subbota ◽  
Valeriy Sukhoveckiy ◽  
Oleg Fadeev

AIAA Journal ◽  
1997 ◽  
Vol 35 ◽  
pp. 327-333
Author(s):  
C. W. Lim ◽  
S. Kitipornchai ◽  
K. M. Liew

2020 ◽  
Vol 0 (4) ◽  
pp. 43-51
Author(s):  
A. L. Vorontsov ◽  
◽  
I. A. Nikiforov ◽  

Formulae have been obtained that are necessary to calculate cumulative deformation in the process of straitened extrusion in the central area closed to the working end of the counterpunch. The general method of plastic flow proposed by A. L. Vorontsov was used. The obtained formulae allow one to determine the deformed state of a billet in any point of the given area. The formulae should be used to take into account the strengthening of the extruded material.


Author(s):  
Vladimir Gogo ◽  
◽  
Alexander Kipko ◽  
Nikolay Vlasenko ◽  
Yuliia Simonova ◽  
...  

2018 ◽  
Vol 19 (3) ◽  
pp. 423-431
Author(s):  
G. I. Rastorguev ◽  
◽  
A. N. Grishanov ◽  
А. D. Matveev ◽  
◽  
...  

2010 ◽  
Vol 7 ◽  
pp. 129-142
Author(s):  
M.A. Ilgamov ◽  
A.G. Khakimov

The article investigates the reflection of a longitudinal damped travelling wave from the transverse notch and its movement along an infinite rod plunged into viscous liquid. The simplest model for the stress deformed state in the notch zone is applied. The solution is found to depend on the parameters of the liquid and damping characteristics in the material of the rod and the surrounding liquid. The solution to the inverse problem makes it possible to define the coordinate of the notch and the parameter that contains its depth and length using data on both the incident and reflected waves at the observation point.


2006 ◽  
Vol 4 ◽  
pp. 68-72
Author(s):  
A.G. Khakimov ◽  
Z.Z Sharafutdinov

The paper gives a methodology for calculating the drill string performance under off-design conditions, including the passage through the interface separating rocks with very different physico-mechanical characteristics, drilling of boulder rocks, and dynamic modes of operation. One of the mechanisms of the destruction of drill string elements and roller cutters is revealed.


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