STUDYING THE PERFORMANCE OF MULTI-LAYERED CERAMIC-EPOXY ARMOR UNDER HIGH VELOCITY IMPACT WITH FINITE ELEMENT METHOD

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YAZDANI MOJTABA; RASHED ALI

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Paper Information

Journal: Modares Mechanical Engineering Year:2015 | Volume:15 | Issue:1 Page(s): 11-20

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Title

STUDYING THE PERFORMANCE OF MULTI-LAYERED CERAMIC-EPOXY ARMOR UNDER HIGH VELOCITY IMPACT WITH FINITE ELEMENT METHOD

Author(s)

YAZDANI MOJTABA | RASHED ALI | Issue Writer Certificate

Keywords

HIGH-VELOCITY PENETRATORSQ2

MULTI-LAYERED CERAMIC-ARMORQ2

CONOID FAILUREQ2

JOHNSON-HOLMQUIST CONSTITUTIVE RELATIONQ2

Abstract

In this paper, the behavior of multi-layered Alumina ceramic armor against high velocity projectile has been considered and CONOID FAILURE of multi-layered ceramic-epoxy armor has been simulated by means of Johnson & Holmquist constitutive relation in LS-Dyna software.As a result, the CONOID FAILURE of top layer ceramic causes the impact pressure to decrease in back layer, and consequently the epoxy interface transfers the pressure distribution between ceramic layers, causing growth and propagation of CONOID FAILURE thus distributing the pressure in a larger area, finally resisting against projectile penetration in the armor. Simulation results illustrate that by choosing the proper minimum and maximum thickness of ceramic layers and proper layering of them with thin layers on top backed by thick ceramic layers, higher ballistic performance will be available in designed armors and generally an armor with layered configuration will have higher ballistic resistance than monolithic ceramic tile with/without backing. According to the results, bi-layer ceramic armor with 25% lesser thickness with no backing in comparison with monolithic ceramic layer with backing causes 14% more erosion and 18% less penetration of projectile.

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APA: Copy

YAZDANI, MOJTABA, & RASHED, ALI. (2015). STUDYING THE PERFORMANCE OF MULTI-LAYERED CERAMIC-EPOXY ARMOR UNDER HIGH VELOCITY IMPACT WITH FINITE ELEMENT METHOD. MODARES MECHANICAL ENGINEERING, 15(1), 11-20. SID. https://sid.ir/paper/179294/en

Vancouver: Copy

YAZDANI MOJTABA, RASHED ALI. STUDYING THE PERFORMANCE OF MULTI-LAYERED CERAMIC-EPOXY ARMOR UNDER HIGH VELOCITY IMPACT WITH FINITE ELEMENT METHOD. MODARES MECHANICAL ENGINEERING[Internet]. 2015;15(1):11-20. Available from: https://sid.ir/paper/179294/en

IEEE: Copy

MOJTABA YAZDANI, and ALI RASHED, “STUDYING THE PERFORMANCE OF MULTI-LAYERED CERAMIC-EPOXY ARMOR UNDER HIGH VELOCITY IMPACT WITH FINITE ELEMENT METHOD,” MODARES MECHANICAL ENGINEERING, vol. 15, no. 1, pp. 11–20, 2015, [Online]. Available: https://sid.ir/paper/179294/en

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