Frequency spectra of nonlinear elastic pulse-mode waves

Journal Article · Sun Sep 01 00:00:00 EDT 1996 · Journal of the Acoustical Society of America

DOI:https://doi.org/10.1121/1.415984· OSTI ID:286913

Kadish, A; TenCate, J A; Johnson, P A ^[1]

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1. EES-4, MS D443, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)

The frequency spectrum of simple waves is used to derive a closed form analytical representation for the frequency spectrum of damped nonlinear pulses in elastic materials. The damping modification of simple wave theory provides an efficient numerical method for calculating propagating wave forms. The spectral representation, which is neither pulse length nor amplitude limited, is used to obtain estimates for parameters of the nonlinear state relation for a sandstone sample from published experimental data, and the results are compared with those of other theories. The method should have broad application to many solids.

• OSTI ID: 286913
• Journal Information: Journal of the Acoustical Society of America, Vol. 100, Issue 3; Other Information: PBD: Sep 1996
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
SOUND WAVES
WAVE PROPAGATION
NONLINEAR PROBLEMS
PULSES
FREQUENCY DEPENDENCE
DAMPING
WAVE FORMS
ANALYTICAL SOLUTION