Experimental Mechanics

, Volume 29, Issue 2, pp 109–114 | Cite as

Measurement of stress based upon universal relations in acoustoelasticity

  • W. Y. Lu
  • C. -S. Man


A new approach to ultrasonic measurement of stress was proposed recently by Man and Lu. That approach is based on universal relations that result from material symmetry in an acoustoelastic theory applicable to plastically deformed bodies for which superimposed ultrasonic waves can be taken as elastic. When applicable, the Man-Lu approach circumvents the two main difficulties of the acoustic-birefringence method, namely those of unknown initial texture and plastic deformation. An experiment was performed to verify a new universal relation derived by Man and Lu in their earlier work. Plastic strain was developed during the test. The results were in basic accord with the prediction of the theory.


Mechanical Engineer Plastic Deformation Fluid Dynamics Plastic Strain Material Symmetry 


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Copyright information

© Society for Experimental Mechanics, Inc. 1989

Authors and Affiliations

  • W. Y. Lu
    • 1
  • C. -S. Man
    • 2
  1. 1.Department of Engineering MechanicsUniversity of KentuckyLexington
  2. 2.Department of MathematicsUniversity of KentuckyLexington

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