Characterization of hardening behaviors of 4130 Steel, OFHC Copper, Ti6Al4V alloy considering ultra-high strain rates and high temperatures

This paper is concerned with the characterization of the OFHC copper flow stress at strain rates ranging from 10−3 s−1 to 106 s−1 considering the large strain and high temperature effects. Several uniaxial material tests with OFHC copper are performed at a wide range of strain rates from 10−3 s−1 to 103 s−1 by using a INSTRON 5583, a High Speed Material Testing Machine (HSMTM), and a tension split Hopkinson pressure bar. In order to consider the thermal softening effect, tensile tests at 25°C and 200°C are performed at strain rates of 10−3 s−1,101 s−1, and 102 s−1. A modified thermal softening model is considered for the accurate application of the thermal softening effect at high strain rates. The large strain behavior is challenged by using the swift power law model. The high strain rates behavior is fitted with the Lim–Huh model. The hardening curves are evaluated by comparing the final shape of the projectile from numerical simulation results with the Taylor impact tests.

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Modelling and simulation of dynamic recrystallization (DRX) in OFHC copper at very high strain rates

10.1063/1.4971659 ◽

2017 ◽

Author(s):

G. Testa ◽

N. Bonora ◽

A. Ruggiero ◽

G. Iannitti ◽

I. Persechino ◽

...

Keyword(s):

Dynamic Recrystallization ◽

High Strain ◽

Modelling And Simulation ◽

Ofhc Copper ◽

Strain Rates ◽

High Strain Rates ◽

Very High

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A tensile impact apparatus for characterization of fibrous composites at high strain rates

Journal of Materials Processing Technology ◽

10.1016/j.jmatprotec.2005.02.182 ◽

2005 ◽

Vol 162-163 ◽

pp. 76-82 ◽

Cited By ~ 14

Author(s):

G.H. Majzoobi ◽

F. Fereshteh Saniee ◽

M. Bahrami

Keyword(s):

High Strain ◽

Strain Rates ◽

Fibrous Composites ◽

High Strain Rates ◽

Tensile Impact

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Characterization of the combustion of the mixtures biogas-syngas at high strain rates

Fuel ◽

10.1016/j.fuel.2020.117580 ◽

2020 ◽

Vol 271 ◽

pp. 117580

Author(s):

Rima Zouagri ◽

Abdelbaki Mameri ◽

Fouzi Tabet ◽

Amar Hadef

Keyword(s):

High Strain ◽

Strain Rates ◽

High Strain Rates

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Mechanical characterization of 304L-VAR stainless steel in tension with a full coverage of low, intermediate, and high strain rates

Mechanics of Materials ◽

10.1016/j.mechmat.2020.103654 ◽

2021 ◽

Vol 152 ◽

pp. 103654

Author(s):

H. Jin ◽

B. Sanborn ◽

W.-Y. Lu ◽

B. Song

Keyword(s):

Stainless Steel ◽

Mechanical Characterization ◽

High Strain ◽

Strain Rates ◽

High Strain Rates ◽

Full Coverage

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Characterization of a Ferritic Stainless Sheet Steel in Simple Shear and Uniaxial Tension at Different Strain Rates

Volume 8: Mechanics of Solids, Structures and Fluids; Vibration, Acoustics and Wave Propagation ◽

10.1115/imece2011-63141 ◽

2011 ◽

Cited By ~ 3

Author(s):

Matti Isakov ◽

Jeremy Seidt ◽

Kauko O¨stman ◽

Amos Gilat ◽

Veli-Tapani Kuokkala

Keyword(s):

Uniaxial Tension ◽

Simple Shear ◽

High Strain ◽

Image Correlation ◽

Materials Testing ◽

Strain Rates ◽

Test Results ◽

High Strain Rates ◽

Stress Strain

In this study the mechanical properties of ferritic stainless steel EN 1.4521 (AISI 444) were characterized in uniaxial tension and simple shear. The specimen geometries were designed so that tests could be carried out both with a conventional uniaxial materials testing machine and at high strain rates with the Tensile Hopkinson Split Bar method. During the tests, specimen surface deformation was measured using a three dimensional digital image correlation technique based on a two-camera stereovision setup. This technique allowed direct measurement of the specimen gauge section deformation during the test. Test results indicate that the selected approach is suitable for large strain plastic deformation characterization of ductile metals. The stress-strain data obtained from the simple shear tests shows a correlation with the tensile test results according to the von Mises effective stress-strain criterion. Since necking is absent in shear, test data can be obtained at considerably higher plastic strains than in tension. However, the final fracture occurs under a complex loading mode due to the distortion of the specimen geometry and multiaxial loading introduced by the simple shear arrangement. Test results also show that reliable material data can be obtained at high strain rates.

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