Fatigue Behavior of Defective Welded Joints in HY-80 Steel Subjected to Axial Loading

Download or read book Fatigue Behavior of Defective Welded Joints in HY-80 Steel Subjected to Axial Loading written by J. E. JR. ZIMMERMAN and published by . This book was released on 1962 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt: Defective welds in 3/4 in. HY-80 steel and the fatigue behavior of such welds were investigated. Included were lack of penetration, porosity, and slag inclusions; the major types of internal weld flaws which are likely to occur under field conditions. Methods of consistently producing these weld flaws were developed which made possible the prediction of the size and location of the flaws. Various means of non-destructive testing, including visual, magnetic particle, dye penetrant, and radiographic inspection, were used to investigate the defective weldments. In addition, a method of measuring the size and the depth of the flaws in the welds was developed. Axial fatigue tests on plain plate specimens and transverse buttwelded specimens have been conducted to investigate the effects of surface condition and the presence of defective welds on the behavior of such members. The results of the tests have indicated that the flaws can have a marked effect on the fatigue resistance of the members. (Author).