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Determination of Crash-Relevant Material Properties for High-Strength Steels and Constitutive Equations
Technical Paper
2002-01-2132
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
This work reports on the results of tensile testing of Dual-Phase steels at different strain rates in the range 0.0001/s-1000/s. This type of steel is a strong candidate for use in crash-absorbing automotive components. An understanding of material behaviour at relevant strain rates is needed as well as constitutive equations suitable for use in analytic and numerical calculations. Mechanical properties are determined from tensile tests using flat sheet specimens. Quasi-static and high strain rate tests were performed on servo-hydraulic machines and a Hopkinson bar. The test results were used to compare and validate constitutive equations intended to provide a mathematical description of strain rate dependence. Cowper-Symonds, Johnson-Cook and Modified Johnson-Cook constitutive equations were examined.
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Peixinho, N., Pinho, A., and Jones, N., "Determination of Crash-Relevant Material Properties for High-Strength Steels and Constitutive Equations," SAE Technical Paper 2002-01-2132, 2002, https://doi.org/10.4271/2002-01-2132.Also In
References
- Miura K. Takagi S. Hira T. Furukumi O. Tanimura S. High Strain Rate Deformation of High Strength Sheet Steels for Automotive Parts SAE paper n° 980952 1998
- Nakanishi E. Tateno H. Hishida Y. Shibata K. New Materials Technology for Achieving Both Crashworthiness and Weight Reduction Using Energy-Absorbing Steel with Higher Strain-Rate Sensitivity SAE paper n° 980953 1998
- Kang W. J. Cho S. S. Huh H. Chung D. T. Modified Johnson-Cook Model for Vehicle Body Crashworthiness Simulation Int. J. Vehicle Design 21 4 5 424 435 1999
- Al-Mousawi M. M. Reid S. R. Deans W. F. The Use of Split Hopkinson Pressure Bar Techniques in High Strain Rate Materials Testing Proc. Instn. Mech. Engrs. 211 273 292 1997
- Goto D. M. Bingert J. F. Chen S. R. Gray G. T. III Garrett R. K. Jr. The Mechanical Threshold Stress Constitutive-Strength Model Description of HY-100 Steel Metallurgical and Materials Transactions A 31A 1985 1996 2000
- Symonds P. S. Survey of Methods of Analysis for Plastic Deformation of Structures under Dynamic Loading Brown Univ. Providence R.I., U.S.A. Div. of Eng. 1967
- Jones N. Structural Impact Cambridge University Press 1989
- Johnson G. R. Cook W. H. A Constitutive Model and Data for Metals Subjected to Large Strains, High Strain Rates and High Temperatures Proc. of 7 th Int. Symposium on Ballistics 115 120 1983