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Experimental characterization and behavior modeling of 304 stainless steel under various strain rates and temperatures

Abstract : Due to the unique Transformation Induced Plasticity (TRIP) effect, 304 austenitic stainless steel (ASS) is widely used in many engineering areas. During working and manufacturing process or in service, it may undergo deformation over a wide range of strain rates and temperatures. The current work presents a systematic deformation behavior study of 304 ASS by both experiments and numerical simulations. With an original cooling device coupled to the split Hopkinson pressure bar system, the compression behavior at strain rates between 0.001 s-1 and 3000 s-1 and temperatures between -163°C and 172°C was investigated. An extension of the Rusinek-Klepaczko (RK) model considering strain-induced martensitic transformation (SIMT) phenomenon was also used to simulate the thermo-viscoplastic behavior of this steel. To study the deformation behavior at extremely high strain rates exceeding 3000 s-1, a new single shear zone (SSS) specimen has been proposed and validated. Then, the effects of strain rate between 3000 s-1 and 39000 s-1 was analyzed. Finally, with a specially designed cooling device, the ballistic impact behavior under initial projectile velocities between 80 and 180 m.s-1 and temperatures between -163°C and 200°C was studied. By comparison between experiments and numerical simulations for perforation, the previously obtained constitutive relations were validated.
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Submitted on : Thursday, July 23, 2020 - 12:12:13 PM
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  • HAL Id : tel-02905264, version 1


Bin Jia. Experimental characterization and behavior modeling of 304 stainless steel under various strain rates and temperatures. Other [cond-mat.other]. Ecole nationale supérieure d'arts et métiers - ENSAM, 2019. English. ⟨NNT : 2019ENAM0056⟩. ⟨tel-02905264⟩



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