Fracture of brittle material with initial porosity under high energy density flows

Autor:	V. I. Kondaurov, I. N. Lomov
Rok vydání:	1998
Předmět:	High energy Materials science Classical mechanics Brittleness Rheology Energy density Polygon mesh Mechanics Plasticity Porosity Porous medium
Zdroj:	AIP Conference Proceedings.
DOI:	10.1063/1.55532
Popis:	The discussion concern mainly with the various types of fragmentation of initially porous brittle materials and their partial evaporation under high energy flows. A model of elastic-viscoplastic damaged medium was build in this work. This model is applicable for description of both continuous and discontinuous flows since the system of equation has completely divergent form. The use of the equations presented in divergent form gives the opportunity to exploit conservative quasi-monotonic method of Godunov’s type of second order of approximation. Nonstructural meshes with changed during calculation topology is used for description of strong deformations of the computational region. This technique was applied to solution of problems on action of high energy flows on brittle materials.
Databáze:	OpenAIRE
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