Nondestructive evaluation of turbine blades vibrating in resonant modes

Cesar A. Sciammarella; Mansour A. Ahmadshahi

doi:10.1117/12.57467

1 December 1991 Nondestructive evaluation of turbine blades vibrating in resonant modes

Cesar A. Sciammarella, Mansour A. Ahmadshahi

Proceedings Volume 1554, Second International Conference on Photomechanics and Speckle Metrology; (1991) https://doi.org/10.1117/12.57467
Event: San Diego, '91, 1991, San Diego, CA, United States

Abstract

The paper presents the analysis of the strain distribution of turbines blades. The holographic moiré technique is used in conjunction with computer analysis of the fringes. The application of computer fringe analysis techniques reduces the number of holograms to be recorded to two. Stroboscopic illumination is used to record the patterns. Strains and stresses are computed.

Citation Download Citation

Cesar A. Sciammarella and Mansour A. Ahmadshahi "Nondestructive evaluation of turbine blades vibrating in resonant modes", Proc. SPIE 1554, Second International Conference on Photomechanics and Speckle Metrology, (1 December 1991); https://doi.org/10.1117/12.57467

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