Dynamic fragmentation of melted metals upon intense shock wave loading. Some modelling issues applied to a tin target

• Autorzy: Signor L. , Dragon A. , Roy G. , Resseguier T. de , Llorca F.
• Języki publikacji: EN

Abstrakty

EN

We are interested in the dynamic fragmentation event produced in shock-melted metals called micro-spalling. Global energetic approach is briefly reviewed. It provides a general modelling framework that leads to realistic fragment-size predictions. But the actual physical mechanisms involved remain poorly understood. We attempt to explore the conditions under which cavitation, i.e. nucleation and growth of microvoids, may be responsible for fragmentation. This cavitation process is described by means of a hollow sphere model whose matrix is made of liquid tin.

Słowa kluczowe

EN

dynamic fragmentation; liquid metals; cavitation; hollow sphere; shockinduced; melting; tin

• Wydawca: Instytut Podstawowych Problemów Techniki PAN
• Czasopismo: Archives of Mechanics
• Rocznik: 2008
• Tom: Vol. 60, nr 4
• Strony: 323--343
• Opis fizyczny: Bibliogr. 20 poz.

Twórcy

autor

Signor L.

autor

Dragon A.

autor

Roy G.

autor

Resseguier T. de

autor

Llorca F.

• Commissariat a l'Energie Atomique, Centre de Valduc, 21120 Is-sur-Tille, France

Bibliografia

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