MATERIAL TESTING application example

Contactless measurement of Longitudinal & Transversal strain at a tensile test

The RTSS Videoextensometer can measure the longitudinal and transversal strain with one camera. The longitudinal strain is measured through the line marker and the specimen width is measured through the specimen border. It is possible to measure the transversal strain as an average value between the longitudinal marker (--> Poisson number) or as a minimum width (necking --> R/N value).

The video shows a tensile test with the RTSS system measuring longitudinal and transversal strain.

This application example shows the contactless strain masurement at a tensile test by using a RTSS camera system with real-time image analysis.