Evaluation of Flow Stress Drop Caused by Reduction in Strain Rate on Copper at Very High Strain Rates

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概要

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• In the previous work, strain rate change tests were conductedfor high-purity polycrystalline aluminum at very high strain rates. Here we present the results of reduction tests carried outfor copper. The experimental apparatus devised in the previous work is used to attain a sufficiently steep reduction in the strain rate. The flow stress obtained from the reduction tests isanalyzed by means of the deconvolution method. The results indicate that the instantaneous strain rate plays a more important role than the strain rate history for the dynamic flow stress at very high strain rates where a steep increase in the strain rate sensitivity of the flow stress is observed. The above-mentioned results are the same as those found in the previous work.

• 法政大学の論文

著者

• Endoh Hajime

  Mechanical Engineering Graduate School Of Engineering

• SAKINO Kiyotaka

  Department of Mechanical Engineering

• Sakino Kiyotaka

  Hosei Univ.

関連論文

• Rate Controlling Mechanism on Copper at Very High Strain Rates and High Temperatures
• Evaluation of Flow Stress Drop Caused by Reduction in Strain Rate on Copper at Very High Strain Rates

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