Full-field strain measurements at high rate on notched composites tested with a tensile Hopkinson bar

R. Moulart*, F. Pierron, S. R. Hallett, M. R. Wisnom

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

6 Citations (Scopus)

Abstract

The present paper deals with full-field strain measurement on open-hole tensile specimens submitted to high strain rate through a Hopkinson bar device. After having briefly explained the methodology (using an Ultra-High speed camera), the strain results obtained on a first test are shown leading to a discussion on the non-uniform state of loading induced by the Hopkinson bar system. Then, a first attempt to identify stiffnesses on this dynamic case from only the strain and acceleration maps using the Virtual Fields Method is introduced. The results are extremely promising considering the limited quality of the measurements.

Original languageEnglish
Title of host publicationDYMAT 2009: 9TH INTERNATIONAL CONFERENCE ON THE MECHANICAL AND PHYSICAL BEHAVIOUR OF MATERIALS UNDER DYNAMIC LOADING, VOL 1
Place of PublicationCEDEX A
PublisherE D P Sciences
Pages295-301
Number of pages7
ISBN (Print)978-2-7598-0472-6
DOIs
Publication statusPublished - 2009
Event9th International Conference on Mechanical and Physical Behaviour of Materials under Dynamic Loading - Brussels, Belgium
Duration: 7 Sep 200911 Sep 2009

Conference

Conference9th International Conference on Mechanical and Physical Behaviour of Materials under Dynamic Loading
CountryBelgium
Period7/09/0911/09/09

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