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Оглавление
- 2 M.K. Khan , M.A. Iqbal, V. Bratov, N.K. Gupta, N.F. Morozov.pdf
- 2. Numerical Simulation
- 3. Results and Discussion
- Validation. Serjouei et al. [10] performed experiments with steel 4340 projectiles on alumina 95 tiles of span 100 × 100 mm and thicknesses 6.04-9.08 mm. The blunt nose projectile of nominal diameter, 7.56 mm, and nominal length, 30.54 mm, was fired w...
- 4. Conclusions
- References
- 3 Aleksander V. Gerasimov, Leonid A. Igumnov, Anatoliy M. Bragov.pdf
- 5. Conclusions
- 4 A.G. Settimi et al..pdf
- THE IMPACT OF HIGH HEATING RATES ON THE AUSTENITIZATION PROCESS OF 18NiCrMo5 STEEL
- 1. Introduction
- 2. Experimental Procedure
- 3. Results and Discussion
- 4. Conclusion
- THE IMPACT OF HIGH HEATING RATES ON THE AUSTENITIZATION PROCESS OF 18NiCrMo5 STEEL
- 8 Yu.I. Meshcheryakov et al..pdf
- Abstract. In order to identify the successive stages of developing the hierarchy of multiscale mechanisms of dynamic straining, the shock-induced mesostructure formation is studied in combined experiments. Shock tests of two kinds of aluminum alloy, 1...
- Fig. 4. Penetration cavern in 1561 aluminum alloy at the impact velociy of 450 m/s
- Fig. 18. Dependence of penetration depth on impact velocity for 1561 aluminum alloy
- 6. Conclusions
- 1. Shock tests of two kinds of aluminum alloy in two schemes of loading reveal different mechanisms of mesostructure formation depending on initial morphology of material, scheme of shock loading and strain rate. In 1561 aluminum alloy the formation o...
- 2. Formation of microhears and cell structures decreases the resistance to high velocity penetration. In 1565 aluminum alloy, because of the texture, formation of cell structures is supressed. In this situation, resistivity to penetation is determined...
- 3. At the upper region of impact velocities, 1565 aluminum alloy reveals the increased resistivity to penetation as compared to 1561 alloy.
- 4. Within impact velocity range of 250 - 750 m/s the strength behavior of alloys proves to be opposite - when resistance to penetration increases, the spall strength decreases.
- 5. The threshold of structural instability is found to be highly sensitive to initial morphology of material: m/s for 1561 aluminum alloy and Uinst = 588.7 m/s for 1565 alloy.
- 6. Transition one scale to another happens under resonance conditions for mesostructural elements and plastic front oscillations.
- Acknowledgements. No external funding was received for this study.
- References
- [3] Asay JR, Barker LM. Interferometric measurements of shock-induced internal particle velocity and spatial variation of particle velocity. J. Appl. Phys. 1974;45(6): 2540-2546.
- [6] Chabbildas LC, Trott WM, Reinhart WD, Cogar IR, Mann GA. Incipient spall structures in tantalum- microstructural effects. In: Funish MD, Thadani NN, Horie YY. (eds.) Shock Compression of Condenced Matter-2001. Atlanta; 2001. p.483-486.
- [7] Meshcheryakov YI. Multiscale Shock-Wave Processes in Solids. Saint-Petersburg: Nestor-History; 2018.
- [8] Vogler TJ, Reinhart WD, Chhabildas LC. Dynamic behavior of boron carbide. J. Appl. Phys. 2004;95(8): 4173-4183.
- [9] Yano K, Horie Y. Discrete-element modeling of shock compression of polycrystalline copper. Physical Review B. 1999;59(21): 13672-13680.
- [10] Case S, Horie Y. Discrete element simulation of shock wave propagation in polycrystalline copper. Journal of the Mechanics and Physics of Solids. 2007;55(3): 389-514.
- [11] Baer MR. Computatinal modeling of heterogeneous reactive materials at the mesoscale. In: Furnish MD, Chhabildas LC, Nixon RS. (eds.) Shock compression of condenced matter-1999. New York: The APS proceeding; 1999. p.27-33.
- [12] Rozenberg Z, Dekel E. Terminal ballistics. New York: Springer; 2012.
- [15] Zlatin NA, Mochalov SM, Pugachev GS, Bragov AM. Laser differential interferometer. Тheory of the device and an example of application. Soviet Physics Technical Physics. 1974;18(9): 1235–1237.
- 11 A.V. Kremleva_et al..pdf
- STRUCTURAL CHARACTERIZATION OF BULK (AlXGa1-X)2O3 CRYSTALS GROWN BY THE CZOCHRALSKI METHOD
- A.V. Kremleva1*, D.A. Kirilenko1, I.G. Smirnova1, V.E. Bougrov1, A.E. Romanov1,2
- 14 Cherkasov Vasiliy, Avdonin Valeriy, Yurkin Yuriy, Suntsov Dmitrii.pdf
- PREDICTION OF RADIATION SHIELDING PROPERTIES OF SELF ADHESIVE ELASTIC COATING
- Vasiliy Cherkasov1, Valeriy Avdonin1*, Yuriy Yurkin2, Dmitrii Suntsov2
- *e-mail: avdoninvalerii@bk.ru
- Abstract. Analytical definition of radiation shielding properties of polymeric materials is proposed. This method shows good convergence of theoretical calculations with experiment. Obtained results show, that to receive material with high protective ...
- Keywords: gamma shielding, radiation protection, mechanical properties, ethylene propylene diene monomer (EPDM), metal oxide, barite, rubber composites, prediction
- 1. Introduction
- 2. Materials and Methods
- 3. Results and Discussion
- 4. Conclusions.
- Acknowledgments. The research is executed with financial support of Ministry of Education and Science of Russia. The title of project is "Applied scientific research, oriented to create removable elastic self-adhesive radiation protective coatings tha...
- 16 Evdokimov.pdf
- Литература
- 17 A. Papirovskiy et al..pdf
- РАЗРАБОТКА ЧИСЛЕННОЙ МЕТОДИКИ И ПРОВЕДЕНИЕ ВИРТУАЛЬНЫХ ИСПЫТАНИЙ НА ЦИКЛИЧЕСКУЮ ДОЛГОВЕЧНОСТЬ ПРИ ПОМОЩИ МЕТОДА КОНЕЧНЫХ ЭЛЕМЕНТОВ
- 1. Введение
- Прогнозирование усталостного разрушения конструкций и механизмов чрезвычайно важная область исследований при проектировании и создании современной техники в части обеспечения наработки необходимого ресурса и эксплуатационной безопасности.
- 2. Основные методы
- 3. Материалы и лабораторные испытания
- 4. Численный эксперимент
- 5. Заключение
- Литература
- DEVELOPMENT OF NUMERICAL METHODS AND VIRTUAL TESTS FOR CYCLIC DURABILITY BY FINITE ELEMENT METHOD
- References
- 17 A. Papirovskiy et al..pdf
- РАЗРАБОТКА ЧИСЛЕННОЙ МЕТОДИКИ И ПРОВЕДЕНИЕ ВИРТУАЛЬНЫХ ИСПЫТАНИЙ НА ЦИКЛИЧЕСКУЮ ДОЛГОВЕЧНОСТЬ ПРИ ПОМОЩИ МЕТОДА КОНЕЧНЫХ ЭЛЕМЕНТОВ
- 1. Введение
- Прогнозирование усталостного разрушения конструкций и механизмов чрезвычайно важная область исследований при проектировании и создании современной техники в части обеспечения наработки необходимого ресурса и эксплуатационной безопасности.
- 2. Основные методы
- 3. Материалы и лабораторные испытания
- 4. Численный эксперимент
- 5. Заключение
- Литература
- DEVELOPMENT OF NUMERICAL METHODS AND VIRTUAL TESTS FOR CYCLIC DURABILITY BY FINITE ELEMENT METHOD
- References
- 17 A. Papirovskiy et al..pdf
- РАЗРАБОТКА ЧИСЛЕННОЙ МЕТОДИКИ И ПРОВЕДЕНИЕ ВИРТУАЛЬНЫХ ИСПЫТАНИЙ НА ЦИКЛИЧЕСКУЮ ДОЛГОВЕЧНОСТЬ ПРИ ПОМОЩИ МЕТОДА КОНЕЧНЫХ ЭЛЕМЕНТОВ
- 1. Введение
- Прогнозирование усталостного разрушения конструкций и механизмов чрезвычайно важная область исследований при проектировании и создании современной техники в части обеспечения наработки необходимого ресурса и эксплуатационной безопасности.
- 2. Основные методы
- 3. Материалы и лабораторные испытания
- 4. Численный эксперимент
- 5. Заключение
- Литература
- DEVELOPMENT OF NUMERICAL METHODS AND VIRTUAL TESTS FOR CYCLIC DURABILITY BY FINITE ELEMENT METHOD
- References
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