... Loading and performance criteria for hydraulic steel structures are outlined in EM 1110 -2- 2105, EM 1110 -2- 27 01, EM 1110 -2- 27 02, and EM 1110 -2- 2703. Basic fatigue and fracture analysis concepts ... al. 1989). 6 -2. Fracture Behavior of Steel Materials a. The operating service temperature of a steel structure has a significant effect on the fracture behavior of the steel. For low- ... effect of bead configuration, and macrodefects of welded joints. The quality of welds can be evaluated as a function of ductility to resist cracking during bending. The top and bottom surfaces of...