Flexible Head, Designed for Measuring Residual Stress along Variable Curves Using Ultra-Sonic Tranducers

Ultra-sonic measure of residual stress has been along for a while. One main drawback of this technique is the need for a measuring head adapted to each new surface shape. We introduce a new measurement head designed to adapt to changing curves. This device will open the possibility of curved surfaces residual stress cartography. We focus on the device geometric design, its possibilities and limitations.