The finite element simulation of a welding process is usually validated by temperature evolution, microstructure analysis, residual stress measurement, or strain evolution. Several methods are available for measuring the strain evolution, and in this research, we investigate if the digital image correlation (DIC) technique can record the strain evolution during welding. Compared to other measuring methods used in welded structures, DIC has the major advantages that it is a contactless method, and it can give the strain evolution over a significant portion of the surface when a workpiece is welded, even in. zones where temperature reaches 600 degrees C, without the need for thermal compensation on the measured strains. The case investigated was a stainless steel tube with a longitudinal weld bead on top. It was shown that if enough images were taken, the strain evolution was in agreement with that found by electrical strain gauges.