EFFECT OF PEENING AND GRINDING ON THE FATIGUE STRENGTH OF FILLET WELDED JOINTS

DETAILS OF FATIGUE TESTS CARRIED OUT ON SPECIMENS CONTAINING LONGITUDINAL AND TRANSVERSE NON-LOAD-CARRYING FILLET WELDED JOINTS WHICH HAD BEEN EITHER GROUND OR HAMMER PEENED ARE REPORTED. BOTH TYPES OF TREATMENT RESULTED IN CONSIDERABLE INCREASES IN FATIGUE STRENGTH. THE INCREASE DUE TO GRINDING WAS APPROXIMATELY INDEPENDENT OF LIFE OVER THE ENDURANCE RANGE CONSIDERED, BUT THAT RESULTING FROM PEENING WAS DEPENDENT ON LIFE. AS A GENERAL RULE, IT MAY BE CONCLUDED THAT FOR STRUCTURES SUBJECTED TO HIGH STRESSES AND A RELATIVELY SMALL NUMBER OF CYCLES, IT IS MORE BENEFICIAL TO USE GRINDING THAN PEENING AS AN IMPROVEMENT TECHNIQUE, BUT FOR STRUCTURES SUBJECTED TO A LARGE NUMBER OF CYCLES OF LOWER STRESS IT IS BETTER TO USE PEENING. BY THE USE OF GRINDING AND PEENING COMBINED, A FATIGUE STRENGTH EQUIVALENT TO THAT OF THE PARENT MATERIAL CAN BE OBTAINED FOR A FILLET WELDED JOINT IN MILD STEEL. /AUTHOR/

• Supplemental Notes:
  • Vol 15, No 12, PP 601-609
• Corporate Authors:

  N/A

  ,   United States 
• Publication Date: 1968-12

Media Info

• Serial:
  • British Welding Journal
  • Publisher: N/A

Subject/Index Terms

• TRT Terms: Fatigue tests; Grinding; Joints; Peening; Steel; Strength of materials; Welds
• Uncontrolled Terms: Welded joints
• Subject Areas: Geotechnology; Highways; Materials;

Filing Info

• Accession Number: 00216784
• Record Type: Publication
• Files: TRIS
• Created Date: Aug 25 2003 12:00AM