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http://dx.doi.org/10.3795/KSME-A.2016.40.9.791

Evaluation of Dynamic Deformation Behaviors in Metallic Materials under High Strain-Rates Using Taylor Bar Impact Test  

Bae, Kyung Oh (Dept. of Mechanical Design Engineering, Andong Nat'l Univ.)
Shin, Hyung Seop (Dept. of Mechanical Design Engineering, Andong Nat'l Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.40, no.9, 2016 , pp. 791-799 More about this Journal
Abstract
To ensure the reliability and safety of various mechanical systems in accordance with their high-speed usage, it is necessary to evaluate the dynamic deformation behavior of structural materials under impact load. However, it is not easy to understand the dynamic deformation behavior of the structural materials using experimental methods in the high strain-rate range exceeding $10^4\;s^{-1}$. In this study, the Taylor bar impact test was conducted to investigate the dynamic deformation behavior of metallic materials in the high strain-rate region, using a high-speed photography system. Numerical analysis of the Taylor bar impact test was performed using AUTODYN S/W. The results of the analysis were compared with the experimental results, and the material behavior in the high strain-rate region was discussed.
Keywords
Taylor Bar Impact Test; High-Strain-Rate; Dynamic Yield Strength; High-Speed Photography System;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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