![]() The differences in predicted distortion between the three filler materials are relatively small. We will give, without proof, the formulas for calculation of stresses σ x, σ y and τ xy, when measurements are taken using three gauges. ![]() In the case of stress measurement at the plate edges two gauges will not be enough, and a full rosette of three gauges is required. A rectangular rosette of two gauges was glued on at each point of stress measurement. ![]() ![]() Gauges were glued to the plate surface, using glue of Tsiakrin grade. Stresses σ y contrarily, become smaller in magnitude with the increase of distance x from the plate edge.īoth in the case of butt welding of a plate, and in welding of stiffeners to it, strain gauges with 5 mm base and electric resistance of 90 Ohm were used for stress measurement. It is interesting to note in both experiments a confirmation of the earlier derived theoretical results on stresses σ x being equal to zero on the plate front edges, their increase with distance x and achievement of the maximal value at x = 20 cm and more. Stresses were measured in the sections of the plate and the stiffeners along the weld line at different distances x from the front edge (shown in the graph). ![]()
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