- 1. Influence of disperse-hardening additive chrome diboride on the structure of carbide matrixes of PDC drill bits
- (Content №4 2024)
- ... resistance, compressive and bending strength) and operational (wear resistance, productivity) properties has been developed to create a highly effective rock-cutting tool for drilling oil and gas wells. ...
- Created on 28 August 2024
- 2. Endurance calculation of welded joints in tubbing erector mechanism using digital methods
- (Content №3 2024)
- ... Zhu, J., Barsoum, I., & Khurshid, M. (2023). Fatigue strength assessment of cover plate joints subjected to axial and bending loading. Fatigue & Fracture of Engineering Materials & Structures, ...
- Created on 28 June 2024
- 3. Influence of hot plastic deformation on properties of the carbon steel
- (Content №2 2024)
- ... of an API X80 steel pipe after high-frequency hot-induction bending. Metals, 8(3), 168. https://doi.org/10.3390/met8030168. 16. Vakulenko, I. O., Vakulenko, L. I., Bolotova, D. M., Kurt, B., Asgarov, ...
- Created on 01 May 2024
- 4. Influence of ice structure on vitability of frozen sand-water and sand-clay mixtures
- (Content №1 2024)
- ... Frozen mixtures’ vitability at -15 °C is studied on beam-type samples. As indicators of survivability, the time to 1 mm bending of samples on supports and the time to their destruction are accepted. The ...
- Created on 29 February 2024
- 5. Designing the working surfaces of rotary planetary mechanisms
- (Content №4 2023)
- ... 10. Zhang, J., Zhang, L., Ma, Z., Wang, X., Wu, Q., & Fan, Z. (2021). Coupled bending-torsional vibration analysis for rotor-bearing system with rub-impact of hydraulic generating set under both ...
- Created on 28 August 2023
- 6. Determination of steel arch support distance for roadways under the open-pit mine: a case study at the Mong Duong Coal Mine (Vietnam)
- (Content №3 2023)
- ... of the surrounding rock mass. This study utilized a numerical modeling approach to simulate and establish the bending moment and axial force of both single and double lane railway roadways, across a range ...
- Created on 27 June 2023
- 7. Use of natural phosphate wastes in the manufacture of construction bricks
- (Content №5 2022)
- ... to bending and compression constitutes a real significant recovery for the phosphate wastes from Djebel Onk. Keywords: phosphate wastes, clay, manufacturing, bricks References. 1. ...
- Created on 30 October 2022
- 8. Forceful interaction of the casing string with the walls of a curvilinear well
- (Content №4 2022)
- ... developed. The calculating formulas for the reaction forces, axial forces, bending moments and stresses acting in the casing pipes in the well deep are obtained. Originality. The solved problem takes into ...
- Created on 29 August 2022
- 9. Prospects of using the polymetallic ore processing waist for producing hardening mixtures
- (Content №3 2022)
- ... ore processing as an inert filling of hardening mixtures is estimated; the compressive and bending strength of samples is determined after the mixture solidification as well. Findings. Based on ...
- Created on 29 June 2022
- 10. Flat problem to determine the forces of destruction of pieces n disintegrators while being grabbed in thick layer
- (Content №3 2022)
- ... loading are reduced to three-point bending schemes and two-point shear schemes, both across the long and the short sides of the piece. The most dangerous loading scheme is determined from the analysis ...
- Created on 29 June 2022
- 11. Determination of the stability of a three-layer shell of a traveling wheel with light filler
- (Content №2 2022)
- ... Bending stiffness Dh was substituted with flexural stiffness of three-layer shell with account for the shear deformation. Findings. The current situation of the three-layer cylindrical shell stability ...
- Created on 30 April 2022
- 12. Determination of vertical dynamics for a standard Ukrainian boxcar with Y25 bogies
- (Content №5 2021)
- ... M.E. (2019). Relationships between the ultimate strengths of polymer composites in static bending, compression, and tension. Mechanics of Composite Materials, 52(2), 259-266. 18. Dio, J., Steiunas, S., ...
- Created on 29 October 2021
- 13. Tectonic factors of impurity elements accumulation at the Shubarkol coal deposit (Kazakhstan)
- (Content №5 2021)
- ... shears. Geology and Geophysics, 52(1), 66-90. 12. Levashova, N.M., Degtyarev, K.E., & Bazhenov, M.L. (2012). Oroclinal bending of the Middle Late Paleozoic volcanic belts of Kazakhstan: paleomagnetic ...
- Created on 29 October 2021
- 14. Justification of rational parameters for manufacturing pump housings made of fibroconcrete
- (Contens №5 2020)
- ... same time fiber concrete has density of 2200–2300 kg/m3 versus 7500–7800 kg/m3 of metal bodies, compression strength of 230–240 MPa, bending strength of 80–100 MPa. All these allow reducing thickness of ...
- Created on 30 October 2020
- 15. Prediction of transient processes in oil pipelines with the purpose of emergency incident prevention
- (Content №1 2020)
- ... M., Alkhrdaji, T., & Hill, C. (2015). CFRP Strengthening and Rehabilitation of Corroded Steel Pipelines Under Direct Indentation and Bending. Society of Petroleum Engineers, November 9, 1-15. https://doi.org/10.2118/177876-MS. ...
- Created on 10 March 2020
- 16. Deformation of the long casing string on centralizers in the process of its installation in a horizontal well
- (Geotechnical and mining mechanical engineering, machine building)
- ... of the deformations and the equilibrium of the bending moments in the support sections. Findings. A general solution of the basic differential equation of deformations of a horizontal pipe column ...
- Created on 26 October 2019
- 17. Improving reliability of drill pipe by strengthening of thread connections of its elements
- (Geotechnical and Mining Mechanical Engineering, Machine Building)
- ... 3(15), 35-38. 9. Kolomiets, L., Orobey, V., & Lymarenko, A. (2016). Method of boundary element in problems of stability of plane bending beams of rectangular cross section. Structures. Metallurgical ...
- Created on 19 August 2019
- 18. Innovative designs of pumping deep-water hydrolifts based on progressive multiphase non-equilibrium models
- (Geotechnical and mining mechanical engineering, machine building)
- ... V. S., 2018. Asymptotic method for investigating resonant regimes of nonlinear bending vibrations of elastic shaft. Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu, 1, pp. 68‒73. DOI: 10.29202/nvngu/2018-1/9. ...
- Created on 24 April 2019
- 19. Determination of drilling and blasting parameters considering the stress-strain state of rock ores
- (Mining)
- ... V., Potapov, V., Kycenko, V., Lebedynecj, I. and Pedorych, I., 2016. Analytical study of the bending of isotropic plates, inhomogeneous in thickness. Eastern-European Journal of Enterprise Technologies, ...
- Created on 08 March 2019
- 20. Large deformations of the casing string under its own weight in the curvilinear well
- (Geotechnical and mining mechanical engineering, machine building)
- ... second order differential equation with variable coefficients. Its solution is the clue to the formulas of deflections, angular slopes, internal bending moments and transverse forces in the rod with the ...
- Created on 26 December 2018