ON THE CAPACITY OF TUBULAR T-JOINTS SUBJECTED TO SEVERE CYCLIC LOADING

Tubular T-joints with chord diameter 503mm and wall thickness 20mm were tested under monotonic and cyclic axial loading. The brace to chord diameter ratio ( ) and the brace to chord thickness ratio ( ) were both 0.5. The chord length to radius ratio ( ) was 8.35. The cyclic tests were conducted under constant amplitude displacement loading. During testing, the specimens were instrumented for measurements of deflections and hot spot strains. All models fractured by extensive cracking at the chord weld toe. For the cyclic tests, the number of cycles to through thickness cracking was in the range 7-70 cycles. The test results are compared with test data reported in the literature and with current design recommendations. The ability of nonlinear finite element methods to predict the observed behaviour was investigated by numerical simulations of selected tests.

• Supplemental Notes:
  • OMAE 1995, 14th Intl Conf on Offshore Mechanics & Arctic Engng; 18-22 June 1995; Copenhagen, Denmark. Sponsored by ASME et al. Procs. Publ by ASME, ISBN 0-7918-1307-X. Vol I, Pt B, p 133 [10 p, 11 ref, 1 tab, 14 fig]
• Authors:
  • Skallerud, B H
  • EIDE, O
• Publication Date: 1995

Language

• English

Subject/Index Terms

• TRT Terms: Cracking; Joints (Engineering); Repeated loads; Strain (Mechanics); Tubular structures
• Uncontrolled Terms: Crack initiation
• Old TRIS Terms: Strains; Tubular joints
• Subject Areas: Bridges and other structures; Marine Transportation;

Filing Info

• Accession Number: 00718545
• Record Type: Publication
• Source Agency: British Maritime Technology
• Files: TRIS
• Created Date: Mar 27 1996 12:00AM