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Evaluation of dopant profiles and diffusion constants by means of electron energy loss spectroscopy
(1989)
Entfernung von Ammoniak aus Abwässern durch Strippung und Sorption an Zeolithen : [Synopse 1724]
(1989)
Einfluß der Kontoführungsmodelle auf den Effektivzins und die Restschuld bei Annuitätendarlehen
(1989)
Steuerreformgesetz 1990
(1989)
Steuerreformgesetz 1990
(1989)
The nonlinear scalar constitutive equations of gases lead to a change in sound speed from point to point as would be found in linear inhomogeneous (and time dependent) media. The nonlinear tensor constitutive equations of solids introduce the additional local effect of solution dependent anisotropy. The speed of a wave passing through a point changes with propagation direction and its rays are inclined to the front. It is an open question whether the widely used operator splitting techniques achieve a dimensional splitting with physically reasonable results for these multi-dimensional problems. May be this is the main reason why the theoretical and numerical investigations of multi-dimensional wave propagation in nonlinear solids are so far behind gas dynamics. We hope to promote the subject a little by a discussion of some fundamental aspects of the solution of the equations of nonlinear elastodynamics. We use methods of characteristics because they only integrate mathematically exact equations which have a direct physical interpretation.