Some Factors Affecting the Corrosion Fatigue Performance of Welded Joints in Offshore Structures

1985 ◽  
pp. 53-67
Author(s):  
D. J. Burns ◽  
O. Vosikovsky
Keyword(s):  
Corrosion Fatigue ◽  
Welded Joints ◽  
Offshore Structures ◽  
Fatigue Performance ◽  
Factors Affecting

scholarly journals Fatigue Strength and Angular Distortion of the Full-Penetration Tee Type Joint Fabricated by One-Side Single-Pass Laser-Arc Hybrid Welding

2016 ◽  
Author(s):  
Koji Gotoh ◽  
Shuichi Tsumura
Keyword(s):  
Fatigue Strength ◽  
Welded Joints ◽  
Offshore Structures ◽  
Fatigue Performance ◽  
Angular Distortion ◽  
Hybrid Welding ◽  
High Quality ◽  
Full Penetration ◽  
Welding Technology ◽  
Tee Joints

Laser-arc hybrid welding is a high-quality welding technology and is expected to improve the productivity of manufacturing hull and offshore structures. Application of this technology allows the replacement of fillet-welded joints in structures with full-penetration welded joints. The fatigue performance and deformation caused by welding will be improved by this replacement. The present study experimentally investigates the fatigue performance and deformation due to welding. Two types of tee joints, which penetrate from one side and both sides, were applied. The investigations confirm the superiority of full-penetration tee joints fabricated by laser-arc hybrid welding over conventional fillet-welded joints.

Corrosion Fatigue Tests on Welded Tubular Joints

1985 ◽  
Vol 107 (1) ◽  
pp. 68-73
Author(s):  
T. Iwasaki ◽  
J. G. Wylde
Keyword(s):  
Corrosion Fatigue ◽  
Welded Joints ◽  
Sea Water ◽  
Water Environment ◽  
Offshore Structures ◽  
Fatigue Tests ◽  
Tubular Joints ◽  
Fatigue Design ◽  
Out Of Plane ◽  
The Cost

The corrosion fatigue performance of welded tubular joints is recognized as one of the most important factors in the design of offshore structures. Because of the cost of such tests it has been practice to carry out tests on tubular joints in air and to perform corrosion fatigue tests on simple welded joints. Thus very few corrosion fatigue tests have been carried out on tubular joints. The present paper describes the results of fatigue tests which have been carried out on welded tubular joints both in air and in a sea water environment. The specimens were tubular K and KT-joints with chord dimensions of 168 mm diameter and 6 mm wall thickness. The tests were carried out under out-of-plane bending. The corrosion fatigue tests were carried in sea water at 10° C at a frequency of 10 cycles per min, which is typical of wave periods. The specimens were not cathodically protected. The fatigue results in air and sea water are compared, and discussed in connection with the current fatigue design S-N curves for tubular joints contained in various standards.

Corrosion Fatigue Performance of a Carbon Steel in Brine Containing Air, H2S and CO2

CORROSION ◽  
1966 ◽  
Vol 22 (12) ◽  
pp. 325-335 ◽  
Author(s):  
PARVIS MEHDIZADEH ◽  
R.L. McGLASSON ◽  
J. E.LANDERS
Keyword(s):  
Carbon Steel ◽  
Corrosion Fatigue ◽  
Fatigue Performance

Corrosion fatigue strength of ship structural steel butt welded joints in synthetic sea-water

1999 ◽  
Vol 13 (5) ◽  
pp. 385-391
Author(s):  
Y Kobayashi ◽  
Y Tanaka ◽  
H Goto ◽  
K Matsuoka ◽  
Y Motohashi
Keyword(s):  
Fatigue Strength ◽  
Structural Steel ◽  
Corrosion Fatigue ◽  
Welded Joints ◽  
Sea Water ◽  
Corrosion Fatigue Strength
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