Presenting a Modified Theory and Analytical Investigation of Projectile Penetration into Ceramic-Metal Semi-Infinite Targets

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Sayah Badkhor Mostafa; VAHEDI KHODADAD; NADAF OSKOUEI ALIREZA

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Journal: JOURNAL OF SOLID AND FLUID MECHANICS Year:2019 | Volume:9 | Issue:2 Page(s): 31-45

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Title

Presenting a Modified Theory and Analytical Investigation of Projectile Penetration into Ceramic-Metal Semi-Infinite Targets

Author(s)

Sayah Badkhor Mostafa | VAHEDI KHODADAD | NADAF OSKOUEI ALIREZA | Issue Writer Certificate

Keywords

PenetrationQ2

Semi-Infinite TargetsQ1

Ceramic TargetsQ1

New Analytical ModelQ1

Fellows ModelQ1

Abstract

Nowadays, in impact mechanics, ceramic is especially important. It is used to produce bullet-proof targets due to its low density and high hardness. In this article, we presented a new and complete modified analytical model for semi-infinite ceramic-metal targets, based on the Fellows analytical model, which is one of the most important models in the field of Penetration. The New Analytical Model includes modifications such as considering the variations in the projectile's velocity at each time interval, the calculation of the ceramic cone formation time, the change in the half-angle of the ceramic cone, the change in the compression strength of the ceramic during the Penetration process, the calculation of the ceramic mass reduction based on the time of the formation of the ceramic cone, the decrease in the projectile's length depends on the variation in the projectile and ceramic velocity at each time interval and the calculation of the suppression mass reduction. In addition, flowchart of determining the depth of Penetration process, regarding to the modifications of the New Analytical Model and the clarification of the Fellows Model ambiguous, was presented. The results of the New Analytical Model have been compared with the results of the Fellows and Woodward analytical models and experimental data. These results improve the predictions of the Fellows Model in determining the Penetration depth at low velocities and also have good agreement with experimental data.

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APA: Copy

Sayah Badkhor, Mostafa, VAHEDI, KHODADAD, & NADAF OSKOUEI, ALIREZA. (2019). Presenting a Modified Theory and Analytical Investigation of Projectile Penetration into Ceramic-Metal Semi-Infinite Targets. JOURNAL OF SOLID AND FLUID MECHANICS, 9(2 ), 31-45. SID. https://sid.ir/paper/406476/en

Vancouver: Copy

Sayah Badkhor Mostafa, VAHEDI KHODADAD, NADAF OSKOUEI ALIREZA. Presenting a Modified Theory and Analytical Investigation of Projectile Penetration into Ceramic-Metal Semi-Infinite Targets. JOURNAL OF SOLID AND FLUID MECHANICS[Internet]. 2019;9(2 ):31-45. Available from: https://sid.ir/paper/406476/en

IEEE: Copy

Mostafa Sayah Badkhor, KHODADAD VAHEDI, and ALIREZA NADAF OSKOUEI, “Presenting a Modified Theory and Analytical Investigation of Projectile Penetration into Ceramic-Metal Semi-Infinite Targets,” JOURNAL OF SOLID AND FLUID MECHANICS, vol. 9, no. 2 , pp. 31–45, 2019, [Online]. Available: https://sid.ir/paper/406476/en

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