Work

Viscosity of solids determined by shock wave action on hemispherical indentations

Year: 1989

Type: article

Abstract: An experimental technique for determining the viscosity of solids is investigated. The technique was developed by Mali from the Institute of Hydrodynamics at Novosibirsk. It involves determining the jet-no-jet condition from a shock wave impacting a plate with hemispherical indentations. The indentation radius when a jet does not form identifies a critical Reynolds number. Numerical simulations of the experiment are performed using a viscoplastic constitutive model. The viscosity is determined by adjusting it until the speed of the jet and the critical Reynolds number match experiment. Results show that the viscosity of copper is two orders of magnitude lower than Mali's, but are in agreement with data derived from shock wave profiles by USA authors. 10 refs., 12 figs., 3 tabs.

Source: OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information)

Authors: D. E. Maiden, Art Mitchell, Mark L. Wilkins

Language: English

Topic: High-Velocity Impact and Material Behavior

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: green

Funders: U.S. Department of Energy, Lawrence Livermore National Laboratory

Awards: G1101028137, G1702950523, G3177268909, G6445123630, G660437508

OpenAlex ID: W4165604

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