Abridgment of electrically welded structures: Under dynamic stress

THE general application of arc welding to all types of construction has extended rapidly during the past few years, but not in the field where dynamic stresses were imposed because of the lack of information on the fatigue resistance characteristics of such welded structures. Even as far back as 1911, Stanton¹ and Abell² after making a series of Wohler tests of welded material, advised against welds for variable stress applications. However, recent investigations such as those described in this paper, justify a more general increase in the use of welding under these conditions.