Comparison of Acoustoelastic Methods to Evaluate Stresses in Steel Plates and Bars
Author:
dos Santos, Auteliano A.1, Bray Don E.2
Affiliation:
1. Departamento de Projeto Mecanico, FEM\UNICAMP, Campinas, SP, Brasil 13100-970 2. Don E. Bray, Inc., College Station, TX, 77842-0315
Abstract
Most of the methods for determining residual stresses inside metallic solids are destructive, which is undesirable. The ultrasonic technique provides a useful nondestructive tool in the evaluation of stresses. This work presents the application of shear and longitudinal waves in the determination of stress state in a steel bar. A bar stressed by a hydraulic system is used to simulate the effect of the tensile stress. The stresses are recorded and compared with the real value calculated using the force and the bar cross-sectional area. The comparison between the theoretical and experimental results shows that it is possible to correlate tensile stresses and velocity with both methods, although the longitudinal critically refracted LCR waves have greater sensitivity to the stress.
Publisher
ASME International
Subject
Mechanical Engineering,Mechanics of Materials,Safety, Risk, Reliability and Quality
Reference12 articles.
1. Prevey, P. S., 1991, “Problems with Nondestructive Surface X-Ray Diffraction Residual Stress Measurement,” Proc., Practical Application of Residual Stress Technology, Vol. 3, pp. 61–67. 2. Krawitz, A. D., and Holden, T. M., 1990, “The Measurement of Residual Stresses Using Neutron Diffraction,” MRS Bull., Nov., pp. 57–64. 3. Vengrinivich, V., Busko, V., Vishnevsky, A., and Denkevich, Y., 1995, “Application of Magnetic Barkhausen Effect for Evaluation of Stresses and Structure of Ferromagnetics,” Nondestructive Characterization of Materials VII, Part 1, Proc. Seventh International Symposium on Nondestructive Characterization of Materials, Prague, Czech Republic, June eds., A. L. Bartos, R. E. Green, Jr., and C. O. Ruud, pp. 411–414. 4. Egle, D. M., and Bray, D. E., 1976, “Measurement of Acoustoelastic and Third Order Elastic Constants for Rail Steel,” J. Acoust. Soc. Am., 60, No. 3, Sept., pp. 741–744. 5. Schramm, R. E., Clark, A. V., Mitrakovic, D. V., and Schaps, S. R., 1991, “Ultrasonic Measurement of Residual Stress in Railroad Wheels,” Proc., Practical Application of Residual Stress Technology, Vol. 3, pp. 61–67.
Cited by
23 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献
|
|