FRACTURE OF HIGH RESTRAINT WELDS IN HIGH STRENGTH QUENCHED AND TEMPERED STEEL

The strain response of high restraint slit-type welds during welding is discussed. The mechanical and physical temperature-dependent properties of HY-130, and the estimated results are discussed. The experiments were designed to enable observation of the macroscopic effects, and at the same time, the cracking of quenched and tempered steel of 130 ksi yield strength. The transient strain response was found to be of equal order of magnitude transversely and longitudinally in the region of the weld arc. There was reasonable correlation of the residual strains between the same weld passes, but a high degree of correlation with the extensiometer data. The time to crack and an empirical stress intensity factor for cracking was developed. The stress intensity factor correlated reasonably well with the values measured by other experimenters.

• Corporate Authors:

  Massachusetts Institute of Technology

  Department of Ocean Engineering, 77 Massachusetts Avenue
  Cambridge, MA  United States  02139
• Authors:
  • Schrodt, C J
• Publication Date: 1974-5

Subject/Index Terms

• TRT Terms: Defects; Research; Strain (Mechanics); Stresses; Structural analysis; Welding; Welds
• Uncontrolled Terms: Weld defects
• Old TRIS Terms: Hy 130 steel; Strain behavior; Weld stresses; Welding research
• Subject Areas: Marine Transportation; Materials; Research;

Filing Info

• Accession Number: 00071693
• Record Type: Publication
• Source Agency: Massachusetts Institute of Technology
• Report/Paper Numbers: MS Degree
• Files: TRIS
• Created Date: Nov 12 1974 12:00AM