Measuring and modeling of low temperature Hopkinson tests

L. Berkovic; A. Chabotier; Frederik Coghe; L. Rabet

doi:10.1016/j.proeng.2011.04.275

Measuring and modeling of low temperature Hopkinson tests

L. Berkovic, A. Chabotier, Frederik Coghe, L. Rabet

Research output: Contribution to journal › Article › peer-review

Abstract

In the present work, dynamic tests have been performed on high hardness steel, aluminium and titanium alloy specimens by means of a split Hopkinson pressure bar (SHPB). The impact behavior was investigated for strain rates ranging from 1000 to 2500 s^-1, and temperatures in the range from -150 °C to room temperature. Simulations of the temperature evolution and its distribution in the specimen were performed using the finite element method. Measurements with thermocouples added inside the sample were performed in order to validate the FEM simulations. In a last stage, the constitutive behaviors using material constants obtained from low and high temperature were compared.

Original language	English
Pages (from-to)	1645-1650
Number of pages	6
Journal	Procedia Engineering
Volume	10
DOIs	https://doi.org/10.1016/j.proeng.2011.04.275
Publication status	Published - 2011

Keywords

Aluminium
Hopkinson
Johnson-Cook
Steel
Titanium

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10.1016/j.proeng.2011.04.275

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title = "Measuring and modeling of low temperature Hopkinson tests",

abstract = "In the present work, dynamic tests have been performed on high hardness steel, aluminium and titanium alloy specimens by means of a split Hopkinson pressure bar (SHPB). The impact behavior was investigated for strain rates ranging from 1000 to 2500 s-1, and temperatures in the range from -150 °C to room temperature. Simulations of the temperature evolution and its distribution in the specimen were performed using the finite element method. Measurements with thermocouples added inside the sample were performed in order to validate the FEM simulations. In a last stage, the constitutive behaviors using material constants obtained from low and high temperature were compared.",

keywords = "Aluminium, Hopkinson, Johnson-Cook, Steel, Titanium",

author = "L. Berkovic and A. Chabotier and Frederik Coghe and L. Rabet",

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AU - Berkovic, L.

AU - Chabotier, A.

AU - Coghe, Frederik

AU - Rabet, L.

PY - 2011

Y1 - 2011

N2 - In the present work, dynamic tests have been performed on high hardness steel, aluminium and titanium alloy specimens by means of a split Hopkinson pressure bar (SHPB). The impact behavior was investigated for strain rates ranging from 1000 to 2500 s-1, and temperatures in the range from -150 °C to room temperature. Simulations of the temperature evolution and its distribution in the specimen were performed using the finite element method. Measurements with thermocouples added inside the sample were performed in order to validate the FEM simulations. In a last stage, the constitutive behaviors using material constants obtained from low and high temperature were compared.

AB - In the present work, dynamic tests have been performed on high hardness steel, aluminium and titanium alloy specimens by means of a split Hopkinson pressure bar (SHPB). The impact behavior was investigated for strain rates ranging from 1000 to 2500 s-1, and temperatures in the range from -150 °C to room temperature. Simulations of the temperature evolution and its distribution in the specimen were performed using the finite element method. Measurements with thermocouples added inside the sample were performed in order to validate the FEM simulations. In a last stage, the constitutive behaviors using material constants obtained from low and high temperature were compared.

KW - Aluminium

KW - Hopkinson

KW - Johnson-Cook

KW - Steel

KW - Titanium

UR - http://www.scopus.com/inward/record.url?scp=80052936954&partnerID=8YFLogxK

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SN - 1877-7058

VL - 10

SP - 1645

EP - 1650

JO - Procedia Engineering

JF - Procedia Engineering

ER -

Measuring and modeling of low temperature Hopkinson tests

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Keywords

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