BEHAVIOR ANALYSIS AND CRACK INITIATION PREDICTION OF TUBULAR T-CONNECTIONS

A program system based on the finite-element method was developed for the detailed behavior analysis of the vicinity of intersection of tubular T-connections. This program system consists of a nonlinear shell analysis program, a nodal data generation program, and a nonlinear solid analysis program. The strain distributions calculated by this program system show a good agreement with experimental results. Experimental results of fatigue crack initiation life of tubular T-connections are evaluated by applying the calculated equivalent strain amplitude into the fatigue strength curve for the same material as that of the connections and into the X-curve in AWS Code, suggesting unsatisfactory safety factor to the X-curve, especially in the lower cycle range.

• Supplemental Notes:
  • Paper presented at the 9th Annual OTC in Houston, Texas, May 2-5 1977.
• Corporate Authors:

  Offshore Technology Conference

  6200 North Central Expressway
  Dallas, TX  United States  45206
• Authors:
  • Yoshida, K
  • Inui, T
  • Iida, K
• Publication Date: 1977

Media Info

• Features: References;
• Pagination: p. 373-380
• Serial:
  • Publication of: Offshore Technology Conference
  • Publisher: Offshore Technology Conference

Subject/Index Terms

• TRT Terms: Cracking; Fatigue cracking; Fatigue strength; Finite element method; Joints; Tubular structures
• Uncontrolled Terms: Crack propagation
• Old TRIS Terms: Tubular joints
• Subject Areas: Marine Transportation; Materials;

Filing Info

• Accession Number: 00158274
• Record Type: Publication
• Source Agency: Offshore Technology Conference
• Report/Paper Numbers: V2, OTC 2854 Proceeding
• Files: TRIS
• Created Date: Aug 31 1977 12:00AM