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An ultrasonic method for measuring stresses in engineering materials |
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| Authors: | N.Ye. Nikitina L.A. Ostrovsky |
| Affiliation: | a Department of Wave Dynamics, Mechanical Engineering Research Institute of the Russian Academy of Sciences, Belinsky Street, 85, Nizhny Novgorod 603024, Russia b Cooperative Institute for Research in Environmental Sciences, University of Colorado/NOAA Environmental Technology Laboratory, 325 Broadway, Boulder, CO 80303, USA |
| Abstract: | A ‘multiparameter’ method for indirect evaluation of intrinsic anisotropy values for prestressed engineering materials is discussed. The proposed method is based on simultaneous measurement of both the velocity of elastic waves and the parameters, characterizing the frequency dispersion and/or attenuation. Preliminary experimental demonstrations of the feasibility of such methods for common engineering materials are presented. |
| Keywords: | Acoustoelasticity Stress measurement Internal material anisotropy |
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