HIGH STRAIN RATE TESTING OF MATERIALS - A FULLY VALIDATED TEST CALIBRATION BY A HYBRID NUMERICAL/EXPERIMENTAL TECHNIQUE

D.J. RUIZ; J. HARDING; C. RUIZ

doi:doi:10.1051/jp4:1991366

Issue		J. Phys. IV France Volume 01, Number C3, Octobre 1991 DYMAT 1991 - 3rd International Conference on Mechanical and Physical Behaviour of Materials under Dynamic Loading


Page(s)		C3-465 - C3-470
DOI		https://doi.org/10.1051/jp4:1991366

DYMAT 1991 - 3rd International Conference on Mechanical and Physical Behaviour of Materials under Dynamic Loading

J. Phys. IV France 01 (1991) C3-465-C3-470
DOI: 10.1051/jp4:1991366

HIGH STRAIN RATE TESTING OF MATERIALS - A FULLY VALIDATED TEST CALIBRATION BY A HYBRID NUMERICAL/EXPERIMENTAL TECHNIQUE

D.J. RUIZ¹, J. HARDING² and C. RUIZ²

¹ Now at Ove Arup and Partners, 13 Fiztroy Street, GB-London W1P 6BQ, Great-Britain.
² Department of Engineering Science, University of Oxford, Parks Road, GB-Oxford OX1 3PJ, Great-Britain

Résumé
Certaines conclusions d'une étude complète expérimentale et numérique sur un test de cisaillement à double entaille (DNS) pour la détermination du comportement des matériaux à très grande vitesse de déformation sont décrites. La photographie ultrarapide, la photoélasticité dynamique et l'analyse numérique par la méthode des éléments finis ont été utilisées. Le test DNS est calibré et on en tire les conclusions sur l'orientation future des essais de matériaux à grande vitesse.

Abstract
Some of the conclusions of an extensive experimental and numerical study of the double-notch shear (DNS) test for the determination of material behaviour at very high rates of strain are described. Ultra-high speed photography, dynamic photoelasticity and the finite element method of numerical analysis are used. The DNS test is calibrated and conclusions are drawn on the direction of future high strain rate material testing.