Automated mechanical testing of small specimens using digital speckle pattern interferometry
This study reports on the development of an integrated mechanical test setup that employs digital speckle pattern interferometry (DSPI) for non-contact, full-field measurement of the deformation of small specimens. Selection of modern optical components, advanced image acquisition and communications hardware, custom developed software and a suitable mechanical test machine has allowed the realization of a compact, user-friendly test system. Specimen loading, optical inspection, image processing and data-acquisition are fully automated which simplifies the testing procedure and improves the overall reliability of the test results. By using a sensitive full-field optical metrology technique in combination with standard load-deflection data acquisition, complex material behaviour can be investigated more effectively in comparison to standard test techniques.
Bibliographic Reference: Paper presented: 11th International Conference on Experimental Mechanics, Surrey (GB); August 24-28, 1998
Availability: Available from (1) as Paper EN 41619 ORA
Record Number: 199811117 / Last updated on: 1998-09-28
Original language: en
Available languages: en