Numerical Modeling of an FG Plate Behavior Impacted at Low Velocity in a Temperature Field

Smahat, Amine; Megueni, A.

doi:10.3311/ppme.8734

Cited by 4 publications

(2 citation statements)

References 14 publications

(16 reference statements)

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“…Their study indicated that the elastoplastic behavior of the functionally graded plate is mainly affected by the impactor velocity, plate radius, and compositional gradient exponent. In addition, Khalili et al, 23 Kiani et al, 25 Smahat and Megueni 26 discussed the effect of temperature, compositional gradient exponent, and impactor velocity on the performance of ballistic protections composed of functionally graded plates under low-velocity impacts. It has been found that each of these parameters has significant effect on the impact characteristics which should be considered during the design process and further in the performance evaluation of the structure.…”

Section: Introductionmentioning

confidence: 99%

Numerical investigation of the dynamic behavior of a Ti/TiB functionally graded material using Split Hopkinson Pressure Bar test

Zemani¹,

May²,

Gilson

et al. 2022

Journal of Composite Materials

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This work focuses on the mechanical behavior, at high strain rates, of metal-ceramic functionally graded materials (FGMs) using a Split Hopkinson Pressure Bar (SHPB) technique. The validity and the accuracy of the SHPB test results for these composite materials have not been meticulously studied due to their complex mechanical response under dynamic loadings. In this paper, numerical simulations of SHPB tests were performed to determine the dynamic response of specific FGMs at various strain rates. The effects of the compositional gradient exponent and the striker velocity, as well as increasing/decreasing stiffness through the thickness of the functionally graded specimen, were investigated. The considered material is composed of Titanium mono-boride ceramic (TiB) and Titanium metal (Ti) phases; the volume fraction (Vc) of the ceramic constituent varies through-thickness following a power-law distribution. The locally effective material properties were evaluated using a homogenization method based on the self-consistent method (SCM). The elastoplastic behavior of the FGMs under dynamic loading is described using dynamic Tamura-Tomota-Ozawa model (DTTO). The numerical simulations indicated that the compositional gradient exponent and striker velocity have significant effects on the dynamic response of the FGMs. On the other hand, the increasing/decreasing stiffness has a minor effect due to the low thickness of the experimental functionally graded specimen. Finally, the effect of the high strain rates the multiple interface reflection/transmission of the stress wave is very considerable for the design and the optimization of FGMs behavior under dynamic loading.

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Section: Introductionmentioning

confidence: 99%

Numerical investigation of the dynamic behavior of a Ti/TiB functionally graded material using Split Hopkinson Pressure Bar test

Zemani¹,

May²,

Gilson

et al. 2022

Journal of Composite Materials

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“…The nonhomogeneous material described above is closest to the Functionally Graded Materials (FGMs) now is popular in academic circles. As a rule, the properties of such materials are set as a continuous function from one phase to another, implying that the sizes of the zones are comparable [7][8][9]. Many studies have been carried out within the framework proposed by Biot [10], the classical conventional coupled theory of thermal elasticity.…”

Section: Introductionmentioning

confidence: 99%

Transient Thermoelastic Analysis of a Cylinder Having a Varied Coefficient of Thermal Expansion

Shypul

Myntiuk

2020

Period. Polytech. Mech. Eng.

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This paper is concerned with the mathematical modeling of transient thermal elastic problem involving a layered cylinder with a varied coefficient of thermal expansion and powered by a heat flux from an external surfaces. All material's properties are the same for each cylinder's layers, besides the coefﬁcient of linear thermal expansion which is varied and corresponds to hardened and unhardened layers. An obtained solution is a transient state of a heat transfer for the one-dimensional temperature change under the action of heat flux in continuous time. Cumbersome analytical solutions are converted into simple approximation. They are used to solve the inverse problems of the thermal stressed state–determining the time of action of the heat flux to achieve the specified maximum temperature or stress. Some numerical results for the stress distributions are shown in ﬁgures.

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A hybrid stochastic sensitivity analysis for low-frequency vibration and low-velocity impact of functionally graded plates

Karsh

Mukhopadhyay

Chakraborty

et al. 2019

Composites Part B: Engineering

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Numerical Modeling of an FG Plate Behavior Impacted at Low Velocity in a Temperature Field

Abstract: Abstract

Cited by 4 publications

References 14 publications

Numerical investigation of the dynamic behavior of a Ti/TiB functionally graded material using Split Hopkinson Pressure Bar test

Numerical investigation of the dynamic behavior of a Ti/TiB functionally graded material using Split Hopkinson Pressure Bar test

Transient Thermoelastic Analysis of a Cylinder Having a Varied Coefficient of Thermal Expansion

A hybrid stochastic sensitivity analysis for low-frequency vibration and low-velocity impact of functionally graded plates

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