Effect of a Quasi-Static Prestrain on Subsequent Dynamic Tensile Curves
Conference paper
Abstract
Ecological and safety preoccupations require the application of Ultra High Strength Steels in the automotive industry. Thanks to the very high mechanical characteristics of these steels, the safety performance is improved without increasing car weight. During the manufacturing of crash structure, an evolution of the microstructure is observed. It has been shown in [1] that the prestrain process generates a phase transformation which increases the crash response of a crash-box structure.
Keywords
Flow Stress Strain Path Equivalent Plastic Strain TRIP800 Steel Austenite Volume Fraction
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References
- 1.Durrenberger, L., Even, D., Molinari, A., Rusinek, A., 2006. Influence of the strain path on crash properties of a crash-box structure by experimental and numerical approaches. Journal de Physique IV, DYMAT Congress, Dijon 2006, France.Google Scholar
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- 3.Klepaczko, J.R., Duffy, J., 1982. History effects in polycrystalline BCC metals and steel subjected to rapid changes in strain rate and temperature. Arch. Mech., vol. 34, Warszawa. pp. 419–436.Google Scholar
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