Longitudinal Bend Test - The problems of weld mismatch (as described in transverse bend test) can be avoided by using longitudinal bend specimens in which the weld runs the full length of the bend specimen; the bend axis being perpendicular to the weld axis.
In longitudinal bend test, all zones of the welded joint (i.e., weld, heataffected zone and the base metal) are strained equally and simultaneously. This test is generally used for evaluations of joints in dissimilar metals. Specimens for longitudinal bend test are prepared in the same manner as for transverse bend tests.
