Acoustic nonlinearity in dispersive solidsAn investigation to consider the effects of dispersion on the generation of the static acoustic wave component is presented. It is considered that an acoustic toneburst may be modeled as a modulated continuous waveform and that the generated initial static displacement pulse may be viewed as a modulation-confined disturbance. A theoretical model for the generation of the acoustic modulation solitons evolved is developed and experimental evidence in samples of vitreous silica demonstrating the essential validity of the model is provided.
Document ID
19920046102
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Cantrell, John H. (NASA Langley Research Center Hampton, VA, United States)
Yost, William T. (NASA Langley Research Center Hampton, VA, United States)
Date Acquired
August 15, 2013
Publication Date
January 1, 1991
Subject Category
Acoustics
Meeting Information
Meeting: Annual Review of Progress in Quantitative Nondestructive Evaluation