The Effect of Internal Weld Defects on the Fatigue Behavior of Welded Connections.

摘要

The object of the investigation was to study the effect of internal flaws on the fatigue behavior of butt-welded connections in mild structural steel,the initiation of fatigue cracks from these flaws and the propagation rates of these cracks in the connections. Since internal flaws occur in many welds it is essential to obtain a better understanding of the behavior of flawed connections so that adequate,yet realistic,code requirements can be established. The study is limited to two major types of defects,porosity and incomplete penetration. (Modified author abstract)