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Keywords: fatigue testing
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Journal Articles
Article Type: Structures and Safety Reliability
J. Offshore Mech. Arct. Eng. August 2012, 134(3): 031602.
Published Online: February 2, 2012
... stress based parametric equations. Their abilities in correlating actual fatigue test data have also been demonstrated. In addition, an emphasis is given to the growing needs for fracture mechanics based remaining life assessment for offshore tubular structures. The major findings as result...
Journal Articles
Article Type: Piper And Riser Technology
J. Offshore Mech. Arct. Eng. August 2012, 134(3): 031702.
Published Online: February 1, 2012
...), and an additional safety frame (8) is placed over the central section of the pipe. This central section, which contains the pipe joint, will be subjected to the highest cyclic loads during the fatigue test. The resonant bending fatigue setup holds several unique features: The drive unit (2) contains two excentric...
Journal Articles
Article Type: Materials Technology
J. Offshore Mech. Arct. Eng. May 2012, 134(2): 021405.
Published Online: December 6, 2011
... experimentally by strain gauges and numerically by finite element analysis using different types of elements. Fatigue testing was carried out and SN-curves were plotted according to the relevant stress as specified by the rules. In order to investigate the shakedown effect of residual stress, testing...
Topics: Stress, Fatigue
Journal Articles
Article Type: Materials Technology
J. Offshore Mech. Arct. Eng. November 2011, 133(4): 041401.
Published Online: April 12, 2011
... to the actual yard practice. A series of fatigue test results is represented as S-N curves. Cyclic fatigue loadings were carefully considered similar to the actual sloshing loads. The effect of sloshing impacts is considered by selecting the stress ratio ( R = − 10 ) . The load levels have been determined based...
Journal Articles
Article Type: Structures, Safety and Reliability
J. Offshore Mech. Arct. Eng. November 2010, 132(4): 041602.
Published Online: September 23, 2010
...Inge Lotsberg; Stig Wästberg; Hugo Ulle; Per Haagensen; Michael E. Hall Design S-N curves in design codes are based on fatigue test data, where the stress cycle is under external tension load. It is observed that during pile driving most of the stress cycle is compressive and the design procedure...
Journal Articles
Article Type: Research Papers
J. Offshore Mech. Arct. Eng. August 2008, 130(3): 031009.
Published Online: July 18, 2008
.... 10 07 2006 09 10 2007 18 07 2008 drag fatigue fatigue testing offshore installations structural engineering An important element in the design of jacket offshore structures with a significant dynamic behavior is the estimation of fatigue life. The simplest approach...
Journal Articles
Article Type: Technical Papers
J. Offshore Mech. Arct. Eng. February 2006, 128(1): 65–74.
Published Online: September 23, 2005
... rise to significant bending in the weld throat section. An example of such a detail is a doubler plate connection, which is often applied in connection with modifications of offshore structures. As a part of the present work, fatigue tests have been performed with test specimens fabricated...
Journal Articles
Article Type: Technical Papers
J. Offshore Mech. Arct. Eng. November 2005, 127(4): 359–365.
Published Online: May 23, 2005
...W. S. Kim; I. Lotsberg Five different specimens representing different typical welded connections in ship-shaped structures were fatigue-tested by HHI in Korea. The test data from the five different specimens for one loading condition were transferred into one hot spot S-N diagram. It was observed...
Journal Articles
Article Type: Technical Papers
J. Offshore Mech. Arct. Eng. August 2004, 126(3): 250–257.
Published Online: September 20, 2004
.../00aaabx1, DNV Materials Technology and Laboratories RN530, Høvik. 02 September 2002 03 December 2003 20 09 2004 fatigue testing offshore installations inspection planning fracture mechanics risk analysis Inspection Planning Mooring Lines Fracture Mechanics...
Journal Articles
Article Type: Technical Papers
J. Offshore Mech. Arct. Eng. August 2004, 126(3): 220–226.
Published Online: July 23, 2003
... is determined from fatigue test data. A closed-form equation is proposed for fatigue life estimation. The results obtained from a fatigue test and the calculated fatigue lives are compared. 10 February 2003 23 July 2003 fatigue testing finite element analysis fracture mechanics ships...
Journal Articles
Article Type: Technical Papers
J. Offshore Mech. Arct. Eng. August 2001, 123(3): 141–146.
Published Online: February 20, 2001
... in defect assessment. These data include the results of fatigue testing of both base material and welded joints in air and seawater with and without cathodic protection and at different R -ratios and test frequencies. The results suggest that for crack growth rates above 10 − 7 in. / cycle , crack growth...
Journal Articles
Article Type: Technical Papers
J. Offshore Mech. Arct. Eng. August 2000, 122(3): 157–162.
Published Online: April 14, 2000
... jointing fatigue fatigue cracks fatigue testing Fatigue is an important consideration for jackets in areas with more or less continuous storm loading such as the North Sea, and especially for dynamically sensitive platforms. The gradual development of cracks from fabrication defects to rupture...
Journal Articles
Article Type: Technical Papers
J. Offshore Mech. Arct. Eng. August 2000, 122(3): 173–180.
Published Online: April 14, 2000
... safety of joints is obtained through use of proper design criteria as well as inspection to detect possible fatigue cracks and initiate repair, whenever necessary. inspection fatigue fatigue cracks fatigue testing crack detection oil technology Probabilistic parameters for analysis...
Journal Articles
Article Type: Technical Papers
J. Offshore Mech. Arct. Eng. November 2000, 122(4): 225–232.
Published Online: March 3, 2000
.... 25 June 1999 03 March 2000 fatigue testing fracture toughness cracks welding failure (mechanical) Welded joints are of particular concern in a fatigue analysis, due to the likely stress concentrations, weld imperfections, and variable microstructure created during...