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The linear Q and the calculation of decaying spherical shocks in solids

โœ Scribed by J.A. Viecelli

Publisher
Elsevier Science
Year
1973
Tongue
English
Weight
714 KB
Volume
12
Category
Article
ISSN
0021-9991

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โœฆ Synopsis

The effect of the linear Q on the decay of a spherical shock wave in a solid, as calculated by Lagrangian finite difference techniques, is determined by a study of the partial differential equations approximated by the difference equations. It is shown that the computed solutions approach an asymptotic form determined by the linear Q terms, and the decay law imposed by the linear Q is given. Finally, it is suggested that the physics of the weak decaying shock problem indicate that the numerical linear Q needs to be replaced by terms modeling a true physical damping mechanism.

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