Temperature influences on the wave propagation technique for use in supplementing impedance-based structural health monitoring

Benjamin L. Grisso; Donald J. Leo; Daniel J. Inman

doi:10.1117/12.539794

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21 July 2004 Temperature influences on the wave propagation technique for use in supplementing impedance-based structural health monitoring

Benjamin L. Grisso, Donald J. Leo, Daniel J. Inman

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Proceedings Volume 5394, Health Monitoring and Smart Nondestructive Evaluation of Structural and Biological Systems III; (2004) https://doi.org/10.1117/12.539794
Event: NDE for Health Monitoring and Diagnostics, 2004, San Diego, CA, United States

Abstract

The influences of temperature variations on the use of wave propagation for damage detection are investigated for use with impedance-based structural health monitoring. The equations used to determine the damage based upon a longitudinal wave are presented as derived by Kabeya, et al. Equations are defined in order to determine the damage location in a simulation. Temperature variations are induced, and the resulting errors are presented. A possible application using a realistic temperature differential is proposed. A curve-fit of the modulus of elasticity is implemented to correct damage location error.

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Benjamin L. Grisso, Donald J. Leo, and Daniel J. Inman "Temperature influences on the wave propagation technique for use in supplementing impedance-based structural health monitoring", Proc. SPIE 5394, Health Monitoring and Smart Nondestructive Evaluation of Structural and Biological Systems III, (21 July 2004); https://doi.org/10.1117/12.539794

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