A technique for the complete nondestructive evaluation of plane states of residual stress is presented. This technique is based on the acoustoelastic effect in which the presence of the residual stress causes a shift in the speed at which a wave propagates through the material. The particular acoustoelastic technique considered here employs longitudinal waves propagating normal to the plane of the stress. Such waves experience a shift in propagation speed which, for an isotropic material, is proportional to the sum of the principal stresses. A Poisson’s equation for the in-plane shear stress is obtained from the two-dimensional equilibrium equations in which the forcing function is obtained directly from the measured velocity variations. Once this equation is integrated for the shear stress, the normal stresses may be evaluated directly from the equilibrium equations. In this paper, the basic equations are derived for the case of an anisotropic material. The experimental and numerical procedures are reviewed, and results of residual stresses in an aluminum ring are presented.
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March 1990
Research Papers
Residual Stress Determination Using Acoustoelasticity
J. J. Dike,
J. J. Dike
Department of Mechanical Engineering, University of California, Berkeley, CA 94720
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G. C. Johnson
G. C. Johnson
Department of Mechanical Engineering, University of California, Berkeley, CA 94720
Search for other works by this author on:
J. J. Dike
Department of Mechanical Engineering, University of California, Berkeley, CA 94720
G. C. Johnson
Department of Mechanical Engineering, University of California, Berkeley, CA 94720
J. Appl. Mech. Mar 1990, 57(1): 12-17 (6 pages)
Published Online: March 1, 1990
Article history
Received:
December 1, 1988
Accepted:
December 1, 1988
Online:
March 31, 2008
Citation
Dike, J. J., and Johnson, G. C. (March 1, 1990). "Residual Stress Determination Using Acoustoelasticity." ASME. J. Appl. Mech. March 1990; 57(1): 12–17. https://doi.org/10.1115/1.2888293
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