Micromechanical criteria of damage and fracture

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Micromechanical criteria of damage and fracture (en)
Микромеханички критеријуми оштећења и лома (sr)
Mikromehanički kriterijumi oštećenja i loma (sr_RS)
Authors

Publications

Multi-disciplinary Shape Optimization of Missile Fin Configuration Subject to Aerodynamic Heating

Vidanović, Nenad; Rašuo, Boško; Kastratović, Gordana; Grbović, Aleksandar; Puharić, Mirjana; Maksimović, Katarina

(American Institute of Aeronautics and Astronautics, 2020)

TY  - JOUR
AU  - Vidanović, Nenad
AU  - Rašuo, Boško
AU  - Kastratović, Gordana
AU  - Grbović, Aleksandar
AU  - Puharić, Mirjana
AU  - Maksimović, Katarina
PY  - 2020
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4057
AB  - The main goal of this paper is to expand previously conducted study and consequently to upgrade the proposed multimodular numerical framework developed for fluid–structure interaction simulation (FSI) and multidisciplinary design optimization (MDO) purposes, in a manner that thermal–structure interaction is observed and implemented into the established numerical framework. The upgraded and considerably improved algorithm was used for MDO of the short-range ballistic missile (SRBM) model. Because of its high-speed regimes, this aircraft model was selected for the purpose of numerical modeling and optimization of aerodynamically heated structure. The present study is concerned with a broader observation of critical multipoint flight conditions and represents a more realistic scenario, which indicates this study as one contribution more in a scope of fluid–thermal–structure interaction (FTSI) numerical modeling and optimization. With respect to predefined objectives and constraints, multidisciplinary shape optimization of the fin structure resulted in overall improvement of the missile initial performances. Also, aerothermally induced critical responses of the fin structure were prevented. Numerical modeling of FSI/FTSI and MDO within an industry-accepted design tool resulted in powerful monolithic environment, which, with adopted multipoint regimes and multicriteria settings, was used for aerodynamic–thermal/structural optimization. The obtained results were compared with the results from the previous study conducted without thermal effects.
PB  - American Institute of Aeronautics and Astronautics
T2  - Journal of Spacecraft and Rockets
T1  - Multi-disciplinary Shape Optimization of Missile Fin Configuration Subject to Aerodynamic Heating
VL  - 57
IS  - 3
SP  - 510
EP  - 527
DO  - 10.2514/1.A34575
ER  - 
@article{
author = "Vidanović, Nenad and Rašuo, Boško and Kastratović, Gordana and Grbović, Aleksandar and Puharić, Mirjana and Maksimović, Katarina",
year = "2020",
abstract = "The main goal of this paper is to expand previously conducted study and consequently to upgrade the proposed multimodular numerical framework developed for fluid–structure interaction simulation (FSI) and multidisciplinary design optimization (MDO) purposes, in a manner that thermal–structure interaction is observed and implemented into the established numerical framework. The upgraded and considerably improved algorithm was used for MDO of the short-range ballistic missile (SRBM) model. Because of its high-speed regimes, this aircraft model was selected for the purpose of numerical modeling and optimization of aerodynamically heated structure. The present study is concerned with a broader observation of critical multipoint flight conditions and represents a more realistic scenario, which indicates this study as one contribution more in a scope of fluid–thermal–structure interaction (FTSI) numerical modeling and optimization. With respect to predefined objectives and constraints, multidisciplinary shape optimization of the fin structure resulted in overall improvement of the missile initial performances. Also, aerothermally induced critical responses of the fin structure were prevented. Numerical modeling of FSI/FTSI and MDO within an industry-accepted design tool resulted in powerful monolithic environment, which, with adopted multipoint regimes and multicriteria settings, was used for aerodynamic–thermal/structural optimization. The obtained results were compared with the results from the previous study conducted without thermal effects.",
publisher = "American Institute of Aeronautics and Astronautics",
journal = "Journal of Spacecraft and Rockets",
title = "Multi-disciplinary Shape Optimization of Missile Fin Configuration Subject to Aerodynamic Heating",
volume = "57",
number = "3",
pages = "510-527",
doi = "10.2514/1.A34575"
}
Vidanović, N., Rašuo, B., Kastratović, G., Grbović, A., Puharić, M.,& Maksimović, K.. (2020). Multi-disciplinary Shape Optimization of Missile Fin Configuration Subject to Aerodynamic Heating. in Journal of Spacecraft and Rockets
American Institute of Aeronautics and Astronautics., 57(3), 510-527.
https://doi.org/10.2514/1.A34575
Vidanović N, Rašuo B, Kastratović G, Grbović A, Puharić M, Maksimović K. Multi-disciplinary Shape Optimization of Missile Fin Configuration Subject to Aerodynamic Heating. in Journal of Spacecraft and Rockets. 2020;57(3):510-527.
doi:10.2514/1.A34575 .
Vidanović, Nenad, Rašuo, Boško, Kastratović, Gordana, Grbović, Aleksandar, Puharić, Mirjana, Maksimović, Katarina, "Multi-disciplinary Shape Optimization of Missile Fin Configuration Subject to Aerodynamic Heating" in Journal of Spacecraft and Rockets, 57, no. 3 (2020):510-527,
https://doi.org/10.2514/1.A34575 . .
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Wear and corrosion behaviour of Ti-13Nb-13Zr and Ti-6Al-4V alloys in simulated physiological solution

Cvijovic-Alagic, I.; Cvijovic, Z.; Mitrovic, S.; Panić, Vladimir; Rakin, M.

(Oxford : Pergamon-Elsevier Science Ltd, 2011)

TY  - JOUR
AU  - Cvijovic-Alagic, I.
AU  - Cvijovic, Z.
AU  - Mitrovic, S.
AU  - Panić, Vladimir
AU  - Rakin, M.
PY  - 2011
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/908
AB  - Wear and corrosion behaviour of cold-rolled Ti-13Nb-13Zr alloy, with martensitic microstructure, and Ti-6Al-4V ELI alloy, in martensitic and two-phase (alpha + beta) microstructural conditions, was studied in a Ringer's solution. The wear experiments were performed at room temperature with a normal load of 40 N and sliding speeds 0.26. 0.5 and 1.0 m/s. The corrosion behaviour was studied at 37 degrees C using open circuit potential-time measurements and potentiodynamic polarization. It was found that Ti-13Nb-13Zr alloy has a substantially lower wear resistance than Ti-6Al-4V ELI alloy in both microstructural conditions. Surface damage extent increases with sliding speed increase and is always smallest for martensitic Ti-6Al-4V ELI alloy with highest hardness. Both alloys exhibit spontaneous passivity in Ringer's solution. Corrosion potential values are similar for all three materials. However, Ti-13Nb-13Zr and martensitic Ti-6Al-4V ELI alloys show improved corrosion resistance comparatively to Ti-6Al-4V ELI alloy with (alpha + beta) microstructure. Martensitic Ti-6Al-4V ELI alloy possesses the best combination of both corrosion and wear resistance, although its corrosion resistance is found to be slightly higher than that of the Ti-13Nb-13Zr alloy.
PB  - Oxford : Pergamon-Elsevier Science Ltd
T2  - Corrosion Science
T1  - Wear and corrosion behaviour of Ti-13Nb-13Zr and Ti-6Al-4V alloys in simulated physiological solution
VL  - 53
IS  - 2
SP  - 796
EP  - 808
DO  - 10.1016/j.corsci.2010.11.014
ER  - 
@article{
author = "Cvijovic-Alagic, I. and Cvijovic, Z. and Mitrovic, S. and Panić, Vladimir and Rakin, M.",
year = "2011",
abstract = "Wear and corrosion behaviour of cold-rolled Ti-13Nb-13Zr alloy, with martensitic microstructure, and Ti-6Al-4V ELI alloy, in martensitic and two-phase (alpha + beta) microstructural conditions, was studied in a Ringer's solution. The wear experiments were performed at room temperature with a normal load of 40 N and sliding speeds 0.26. 0.5 and 1.0 m/s. The corrosion behaviour was studied at 37 degrees C using open circuit potential-time measurements and potentiodynamic polarization. It was found that Ti-13Nb-13Zr alloy has a substantially lower wear resistance than Ti-6Al-4V ELI alloy in both microstructural conditions. Surface damage extent increases with sliding speed increase and is always smallest for martensitic Ti-6Al-4V ELI alloy with highest hardness. Both alloys exhibit spontaneous passivity in Ringer's solution. Corrosion potential values are similar for all three materials. However, Ti-13Nb-13Zr and martensitic Ti-6Al-4V ELI alloys show improved corrosion resistance comparatively to Ti-6Al-4V ELI alloy with (alpha + beta) microstructure. Martensitic Ti-6Al-4V ELI alloy possesses the best combination of both corrosion and wear resistance, although its corrosion resistance is found to be slightly higher than that of the Ti-13Nb-13Zr alloy.",
publisher = "Oxford : Pergamon-Elsevier Science Ltd",
journal = "Corrosion Science",
title = "Wear and corrosion behaviour of Ti-13Nb-13Zr and Ti-6Al-4V alloys in simulated physiological solution",
volume = "53",
number = "2",
pages = "796-808",
doi = "10.1016/j.corsci.2010.11.014"
}
Cvijovic-Alagic, I., Cvijovic, Z., Mitrovic, S., Panić, V.,& Rakin, M.. (2011). Wear and corrosion behaviour of Ti-13Nb-13Zr and Ti-6Al-4V alloys in simulated physiological solution. in Corrosion Science
Oxford : Pergamon-Elsevier Science Ltd., 53(2), 796-808.
https://doi.org/10.1016/j.corsci.2010.11.014
Cvijovic-Alagic I, Cvijovic Z, Mitrovic S, Panić V, Rakin M. Wear and corrosion behaviour of Ti-13Nb-13Zr and Ti-6Al-4V alloys in simulated physiological solution. in Corrosion Science. 2011;53(2):796-808.
doi:10.1016/j.corsci.2010.11.014 .
Cvijovic-Alagic, I., Cvijovic, Z., Mitrovic, S., Panić, Vladimir, Rakin, M., "Wear and corrosion behaviour of Ti-13Nb-13Zr and Ti-6Al-4V alloys in simulated physiological solution" in Corrosion Science, 53, no. 2 (2011):796-808,
https://doi.org/10.1016/j.corsci.2010.11.014 . .
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