Advertisement

Investigating High Strain Rate Behaviour of Foams Using Digital Image Correlation

  • D. A. Crump
  • J. M. Dulieu-Barton
Conference paper
Part of the Conference Proceedings of the Society for Experimental Mechanics Series book series (CPSEMS)

Abstract

The use of closed cell foam sandwich structures in applications where a risk or impact or collision is increased leads a need to understand the dynamic behaviour of such materials. This work uses a specialised Instron servo-hyrdraulic test machine to apply intermediate strain rates to foam tensile dogbone specimens. The overall aim of this work is to provide a full thermomechanical characterisation of the foam material using digital image correlation (DIC) to measure strain, and infra-red thermography to measure temperature. This paper presents some initial strain data measured using DIC on images captured using a high speed camera. The results suggest a strain rate dependence when compared to the manufacturer's data sheet for quasi-static values.

Keywords

Digital Image Correlation High Speed Camera Instron Test Machine Intermediate Strain Rate Foam Specimen 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

References

  1. 1.
    Zhang S, Dulieu-Barton JM, Fruehmann RK, Thomsen OT (2012) A methodology for obtaining material properties of polymeric foam at elevated temperatures. Exp Mech 52:3–15CrossRefGoogle Scholar
  2. 2.
    Daniel IM, Cho J-M (2011) Characterisation of anisotropic polymeric foam under static and dynamic loading. Exp Mech 51:1395–1403CrossRefGoogle Scholar
  3. 3.
    Chen W, Zhang B, Forrestal MJ (1999) A split Hopkinson bar technique for low-impedance materials. Exp Mech 39(2):81–85CrossRefGoogle Scholar
  4. 4.
    Fu S, Wang Y, Wang Y (2009) Tension testing of polycarbonate at high strain rates. Polym Test 28:724–729CrossRefGoogle Scholar
  5. 5.
    DIAB, Divinycell PVC datasheet. (2010) http://www.diabgroup.com. 2010
  6. 6.
    Crump DA, Dulieu-Barton JM, Fruehmann RK (2011) Challenges in synchronising high speed full-field temperature and strain measurement. In: International congress of the society for experimental mechanics, UncasvilleGoogle Scholar

Copyright information

© The Society for Experimental Mechanics, Inc. 2013

Authors and Affiliations

  1. 1.School of Engineering SciencesUniversity of SouthamptonSouthamptonUK
  2. 2.University of SouthamptonSouthamptonUK

Personalised recommendations