Acta Mechanica Solida Sinica

, Volume 26, Issue 2, pp 111–120 | Cite as

Dynamic Mechanical Behavior of 6061 Al Alloy at Elevated Temperatures and Different Strain Rates

Article

Abstract

The compressive stress-strain relationships of 6061Al alloy over wide temperatures and strain rates are investigated. The dynamic impact experiments are performed using an improved high temperature split Hopkinson pressure bar apparatus. The experimental results are compared with those obtained by the modified Johnson-Cook constitutive model. It is found that the dynamic mechanical behavior depends sensitively on temperature under relatively low strain rates or on strain rate at relatively high temperatures. The good agreement indicates that it is valid to adopt the parameter identification method and the constitutive model to describe and predict the mechanical response of materials.

Key words

dynamics plastic high temperature alloy impact testing 

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Copyright information

© The Chinese Society of Theoretical and Applied Mechanics and Technology 2013

Authors and Affiliations

  1. 1.State Key Laboratory for Strength and Vibration of Mechanical Structures, School of Aerospace EngineeringXi’an Jiaotong UniversityXi’anChina
  2. 2.School of AeronauticsNorthwestern Polytechnical UniversityXi’anChina

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