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

doi:10.1051/dymat/2009041

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 proceeding › Conference Contribution (Conference Proceeding)

1 Citation (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 language	English
Title of host publication	DYMAT 2009: 9TH INTERNATIONAL CONFERENCE ON THE MECHANICAL AND PHYSICAL BEHAVIOUR OF MATERIALS UNDER DYNAMIC LOADING, VOL 1
Place of Publication	CEDEX A
Publisher	E D P Sciences
Pages	295-301
Number of pages	7
ISBN (Print)	978-2-7598-0472-6
DOIs	https://doi.org/10.1051/dymat/2009041
Publication status	Published - 2009
Event	9th International Conference on Mechanical and Physical Behaviour of Materials under Dynamic Loading - Brussels, Belgium Duration: 7 Sept 2009 → 11 Sept 2009

Conference

Conference	9th International Conference on Mechanical and Physical Behaviour of Materials under Dynamic Loading
Country/Territory	Belgium
Period	7/09/09 → 11/09/09

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10.1051/dymat/2009041

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@inproceedings{b0727f7f51104b5592e0db49c544b40c,

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

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.",

author = "R. Moulart and F. Pierron and Hallett, {S. R.} and Wisnom, {M. R.}",

year = "2009",

doi = "10.1051/dymat/2009041",

language = "English",

isbn = "978-2-7598-0472-6",

pages = "295--301",

booktitle = "DYMAT 2009: 9TH INTERNATIONAL CONFERENCE ON THE MECHANICAL AND PHYSICAL BEHAVIOUR OF MATERIALS UNDER DYNAMIC LOADING, VOL 1",

publisher = "E D P Sciences",

note = "9th International Conference on Mechanical and Physical Behaviour of Materials under Dynamic Loading ; Conference date: 07-09-2009 Through 11-09-2009",

}

Moulart, R, Pierron, F, Hallett, SR & Wisnom, MR 2009, Full-field strain measurements at high rate on notched composites tested with a tensile Hopkinson bar. in DYMAT 2009: 9TH INTERNATIONAL CONFERENCE ON THE MECHANICAL AND PHYSICAL BEHAVIOUR OF MATERIALS UNDER DYNAMIC LOADING, VOL 1. E D P Sciences, CEDEX A, pp. 295-301, 9th International Conference on Mechanical and Physical Behaviour of Materials under Dynamic Loading, Belgium, 7/09/09. https://doi.org/10.1051/dymat/2009041

Full-field strain measurements at high rate on notched composites tested with a tensile Hopkinson bar. / Moulart, R.; Pierron, F.; Hallett, S. R. et al.
DYMAT 2009: 9TH INTERNATIONAL CONFERENCE ON THE MECHANICAL AND PHYSICAL BEHAVIOUR OF MATERIALS UNDER DYNAMIC LOADING, VOL 1. CEDEX A: E D P Sciences, 2009. p. 295-301.

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

TY - GEN

T1 - Full-field strain measurements at high rate on notched composites tested with a tensile Hopkinson bar

AU - Moulart, R.

AU - Pierron, F.

AU - Hallett, S. R.

AU - Wisnom, M. R.

PY - 2009

Y1 - 2009

N2 - 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.

AB - 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.

U2 - 10.1051/dymat/2009041

DO - 10.1051/dymat/2009041

M3 - Conference Contribution (Conference Proceeding)

SN - 978-2-7598-0472-6

SP - 295

EP - 301

BT - DYMAT 2009: 9TH INTERNATIONAL CONFERENCE ON THE MECHANICAL AND PHYSICAL BEHAVIOUR OF MATERIALS UNDER DYNAMIC LOADING, VOL 1

PB - E D P Sciences

CY - CEDEX A

T2 - 9th International Conference on Mechanical and Physical Behaviour of Materials under Dynamic Loading

Y2 - 7 September 2009 through 11 September 2009

ER -

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

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