In-plane displacement measurement on rotating components using pulsed laser ESPI (electronic speckle pattern interferometry)

1991 ◽  
Author(s):  
Richard W. T. Preater
Keyword(s):  
Speckle Pattern ◽  
Pulsed Laser ◽  
Displacement Measurement ◽  
Electronic Speckle Pattern Interferometry ◽  
Plane Displacement

Out-of-plane displacement measurement by electronic speckle pattern interferometry in presence of large in-plane displacement

2002 ◽  
Vol 208 (1-3) ◽  
pp. 17-24 ◽  
Author(s):  
R.A Martı́nez-Celorio ◽  
B Barrientos ◽  
Francisco J Sanchez-Marı́n ◽  
Luis Martı́ López ◽  
J.A Rayas
Keyword(s):  
Speckle Pattern ◽  
Displacement Measurement ◽  
Electronic Speckle Pattern Interferometry ◽  
Out Of Plane ◽  
Plane Displacement

Electronic Speckle Pattern Interferometry Applied to the Displacement Measurement of Sandwich Plates with Single ‘Fully Potted’ Insert

2004 ◽  
Vol 20 (4) ◽  
pp. 273-276 ◽  
Author(s):  
S. J. Huang ◽  
H. L. Lin
Keyword(s):  
Speckle Pattern ◽  
Fem Analysis ◽  
Electronic Speckle Pattern Interferometry ◽  
Sandwich Plates ◽  
Destructive Testing ◽  
Displacement Fields ◽  
Full Field ◽  
Out Of Plane ◽  
Plane Displacement ◽  
Non Destructive

AbstractThe construction and operation of electronic speckle pattern interferometer (ESPI) applied to single-inserted sandwich plates have been earliest presented in this paper. Proposed ESPI has advantages of full-field and non-destructive testing, which can measures microscopic out-of-plane displacement in the elastic region without wasting specimen. For validation purpose, the finite element method (FEM) analysis was conducted. By comparing the results of ESPI and FEM displacement fields around the inserts that a convincing agreement is revealed. The effect of potting material diameter on the displacement of single-inserted sandwich plates was obtained by the ESPI and FEM.

Deformation in Impacted Stitched Composite Plates Subjected to Compressive Load

2011 ◽  
Vol 393-395 ◽  
pp. 36-39
Author(s):  
Jiang Tao Ruan ◽  
Shi Bin Wang ◽  
Jing Wei Tong ◽  
Min Shen ◽  
Francesco Aymerich ◽  
...  
Keyword(s):  
Speckle Pattern ◽  
Compressive Load ◽  
Composite Plates ◽  
Low Velocity Impact ◽  
Electronic Speckle Pattern Interferometry ◽  
Low Velocity ◽  
Out Of Plane ◽  
Compressive Loads ◽  
Graphite Fibre ◽  
Plane Displacement

The study on deformation in impact-damaged graphite-fibre/epoxy stitched composite plates subjected to compressive load is presented. A delaminated cross-ply laminate [03/903]S obtained in low-velocity impact test has been examined using a self-designed anti-buckling device in compressive experiment. The out-of-plane displacement field of the specimen has been measured with an optical whole-filed measurement technique, which is carrier electronic speckle pattern interferometry (carrier-ESPI). Finite element (FE) simulation is also carried out to predict the deformation. The effect of the stitching line on compressive deformation is discussed for various stitched laminates. Finally, the numerical results are compared with experimental measurement deformations under different compressive loads.

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