Extension of the Non-linear Virtual Fields Method to Inertial Heterogeneous High Strain Rate Tests

Conference paper
Part of the Conference Proceedings of the Society for Experimental Mechanics Series book series (CPSEMS)

Abstract

This paper presents the development of a novel inertial test for the identification of non-linear parameters for elasto-plastic constitutive models at high strain rates. After briefly presenting the principle of the approach (stress reconstruction from acceleration fields measured using an ultra-high speed camera), the methodology is detailed including the development of the identification routine and the experimental implementation. Results will be discussed and future work presented.

Keywords

High-strain rate Ultra-high speed camera VFM Non-linear model identification Inertial test 
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Notes

Acknowledgements

This material is based on research sponsored by the Air Force Research Laboratory, under agreement number FA8655-13-1-3041. The U.S. Government is authorized to reproduce and distribute reprints for Governmental purposes notwithstanding any copyright notation thereon.

The views and conclusions contained herein are those of the authors and should not be interpreted as necessarily representing the official policies or endorsements, either expressed or implied, of the Air Force Research Laboratory or the U.S. Government.

The authors would like to thank Dr. Jason Foley (AFOSR) and Dr Matt Snyder (EOARD) for supporting this work.

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Copyright information

© The Society for Experimental Mechanics, Inc. 2016

Authors and Affiliations

  1. 1.Engineering Materials Research Group, Faculty of Engineering and the EnvironmentUniversity of SouthamptonSouthamptonUK

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