Acoustoelasticity Using Surface Waves in Slightly Anisotropic Materials
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Begun in 1973, the Review of Progress in Quantitative Nondestructive Evaluation (QNDE) is the premier international NDE meeting designed to provide an interface between research and early engineering through the presentation of current ideas and results focused on facilitating a rapid transfer to engineering development.
This site provides free, public access to papers presented at the annual QNDE conference between 1983 and 1999, and abstracts for papers presented at the conference since 2001.
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Abstract
Acoustoelasticity is a nondestructive technique for determining applied and residual stresses in structural materials. It is based on the fact that the velocity of an ultrasonic wave varies as stress is applied to a material. In laboratory conditions, it has been demonstrated that acoustoelasticity can be used successfully [1–3], however, there are some difficulties which have delayed its practical applications. One of these difficulties is the fact that the change in velocity due to texture is of the same order as that which is due to applied stress. This means that the convenient acoustoelastic relations for an isotropic material become more complicated when anisotropic material properties are used.