DETERMINATION OF COMPRESSIVE STRESS OF METALLIC MATERIALS, BASED ON TAYLOR IMPACT TEST

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FELI S.; BAKHTIAR M.

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Journal: Journal of Aerospace Mechanics Year:2012 | Volume:8 | Issue:1 (27) (MECHANICAL BEHAVIOR OF MATERIALS AND STRUCTURES) Page(s): 43-54

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Title

DETERMINATION OF COMPRESSIVE STRESS OF METALLIC MATERIALS, BASED ON TAYLOR IMPACT TEST

Author(s)

FELI S. | BAKHTIAR M. | Issue Writer Certificate

Keywords

COMPRESSIVE DYNAMIC STRESSQ2

TAYLOR TESTQ2

IMPACTQ2

PROJECTILEQ2

Abstract

In this paper based on the plastic stress wave propagation theory, a new analytical model is presented for IMPACT of the cylindrical PROJECTILEs on the rigid surface. In this analytical model, Johnson-Cook material behavior equation, Mie–Grueneisen equation of state, Johnson-Cook strain at fracture equation and kinematics equations of motion, are used. Also, the conservation equations of mass, momentum and energy in front of plastic stress wave are determined.For solving the governing equations, a computer program is developed. The values of stress, strain, strain rate, velocity and length and radius of rigid and deformed region of PROJECTILE were determined. Using new model proposed in this paper, the compressive stress at different plastic strain and strain rates were determined. The results of the new model have been compared with ABAQUS finite element simulations and available experimental results.It shows that the length and radius of deformed region of PROJECTILE predicted by the new model have good agreements with experimental results and ABAQUS FE simulations. Furthermore, the COMPRESSIVE DYNAMIC STRESS is determined as a function of the final PROJECTILE dimensions and material behavior coefficients.

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APA: Copy

FELI, S., & BAKHTIAR, M.. (2012). DETERMINATION OF COMPRESSIVE STRESS OF METALLIC MATERIALS, BASED ON TAYLOR IMPACT TEST. AEROSPACE MECHANICS JOURNAL, 8(1 (27) (MECHANICAL BEHAVIOR OF MATERIALS AND STRUCTURES)), 43-54. SID. https://sid.ir/paper/101934/en

Vancouver: Copy

FELI S., BAKHTIAR M.. DETERMINATION OF COMPRESSIVE STRESS OF METALLIC MATERIALS, BASED ON TAYLOR IMPACT TEST. AEROSPACE MECHANICS JOURNAL[Internet]. 2012;8(1 (27) (MECHANICAL BEHAVIOR OF MATERIALS AND STRUCTURES)):43-54. Available from: https://sid.ir/paper/101934/en

IEEE: Copy

S. FELI, and M. BAKHTIAR, “DETERMINATION OF COMPRESSIVE STRESS OF METALLIC MATERIALS, BASED ON TAYLOR IMPACT TEST,” AEROSPACE MECHANICS JOURNAL, vol. 8, no. 1 (27) (MECHANICAL BEHAVIOR OF MATERIALS AND STRUCTURES), pp. 43–54, 2012, [Online]. Available: https://sid.ir/paper/101934/en

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