Numéro
J. Phys. IV France
Volume 01, Numéro C3, Octobre 1991
DYMAT 1991 - 3rd International Conference on Mechanical and Physical Behaviour of Materials under Dynamic Loading
Page(s) C3-623 - C3-630
DOI http://dx.doi.org/10.1051/jp4:1991387
DYMAT 1991 - 3rd International Conference on Mechanical and Physical Behaviour of Materials under Dynamic Loading

J. Phys. IV France 01 (1991) C3-623-C3-630

DOI: 10.1051/jp4:1991387

THE INFLUENCE OF GRAIN SIZE ON THE SPALL FRACTURE OF COPPER

J. BUCHAR1, M. ELICES2 and R. CORTEZ2

1  Department of Physics, University of Agriculture, Zemedelská 1, 613 00 Brno, Czechoslovakia
2  Department of Material Physics, Escuela de Ingenieros de Camincs, Ciudad Universitaria, SP-28040 Madrid, Spain


Résumé
L'influence de la taille des grains sur la fracture par écaillage du cuivre soumis à une charge explosive est étudiée. On trouve que la contrainte d'écaillage dépend de la taille des grains. La transition fracture intergranulaire - fracture transgranulaire est étudiée en détail. La simulation numérique des expériences est réalisée.


Abstract
The influence of grain size on the spall fracture of copper under explosive loading was studied. It was found that samples with different grain sizes exhibited different spall strength. The fracture mode transition from intergranular to transgranular fracture was studied in details. The numerical simulation of explosive experiments were performed.



© EDP Sciences 1991