The Contour Method for
Measuring Residual Stress

Measure full 2-D residual stress maps over a cross-section:

Some new publications including friction stir welded Magnesium.

Principle: How does this method work?

Applications: Some examples of measuring residual stresses
              To see the method validated, check out the weld plate, bent beam, and friction stir weld

Publications: Download detailed publications.

"Residual stresses in metals operate under a cloak of mystery, as they have neither been seen in the laboratory nor detected by means of the microscope. In spite of their phantom-like nature, they frequently exert metallurgical effects that cannot be ignored."
- Kent R. VanHorn, Director of Research, ALCOA, 1953, Journal of Metals, Vol. 197, pp 405-422.

(Background image on this page is 3D FEM from forging application. Graphic by Chris Brigman.)