Comparison of penetration process of 2-layer elastomeric composite with thermoset composite using energy absorption equations

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Asemani Seyedeh Samaneh; Liaghat Gholamhossain; Ahmadi Hamed; Anani Yavar; Khodadadi Amin

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Journal Paper

Paper Information

Journal: JOURNAL OF MECHANICAL ENGINEERING AMIRKABIR (AMIRKABIR) Year:2021 | Volume:53 | Issue:6 Page(s): 3657-3672

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Information Journal Paper

Title

Comparison of penetration process of 2-layer elastomeric composite with thermoset composite using energy absorption equations

Author(s)

Keywords

Theoretical analysis

absorbed energy

rubber

kevlar fabric

Elastomeric composite

Abstract

The purpose of this paper is to present an analytical model for analyzing the penetration process by aspherical noseshape cylindrical on the kevlar/elastomer and the kevlar/epoxy composites and comparing them with each other using the energy method. To investigate this issue, energy absorptionequations forlinear andnonlinear materials are analyzed as a criterion for the performance of matrix-reinforced fabric. In this predicted model, the dependence of the ballistic behavior of the first and second layers of the composites on each other during the impact is considered. In this presented model, the components of energy absorption include the initial kinetic energy of the projectile, the kinetic energy of the projectile, the kinetic energy of the composite cone ahead of the tip of the projectile, the energies absorbed by primary and secondary yarns, the energies absorbed by the delamination among the layers and the cracking of the matrix, the energy dissipated by plugging of the layers is calculated during impact. The results of this study show a positive effect of elastomer use on thermoset matrix in composite. Also, analytical results are validated with the experimental results of previous studies and the perturbation analysis is done to examine the reason for error.

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