Journal of Mechanical Science and Technology

, Volume 25, Issue 1, pp 143–148 | Cite as

High-temperature dynamic deformation of aluminum alloys using SHPB

Article

Abstract

This paper investigates the dynamic deformation behavior of two aluminum alloys, 2024-T4 and 6061-T6, using a modified split Hopkinson pressure bar (SHPB) with a pulse shaper technique at both elevated and room temperatures. An experimental strategy is proposed, and the dynamic deformation behaviors of two alloys are evaluated with the modified high-temperature SHPB apparatus. The experiments were carried out under varying strain rates and temperatures. The reflected waves modulated by the pulse shaper, the flow stress-strain relationships, the strain rates, the front- and back-ends stresses during the dynamic deformation period were measured at varying high temperatures. Experimentally obtained data were used to evaluate the parameters in the material constitutive equation, such as the Johnson-Cook (JC) constitutive model.

Keywords

m-SHPB (modified split Hopkinson pressure bar) Dynamic deformation behavior Johnson-cook constitutive model Flow stress High strain rate High temperature Pulse shaper Aluminum alloys 

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Copyright information

© The Korean Society of Mechanical Engineers and Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  1. 1.School of Mechanical EngineeringInha UniversityIncheonKorea
  2. 2.Department of Mechanical EngineeringInha UniversityIncheonKorea

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