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Keywords: fatigue strength
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Proceedings Papers

Paper presented at the The Eighth ISOPE Pacific/Asia Offshore Mechanics Symposium, November 10–14, 2008
Paper Number: ISOPE-P-08-023
... ABSTRACT: During drilling operation in strong current, drill string will be constantly bent. And the drilling operation by rotating the drill string will lead a bending stress to a cyclic stress. Consequently it may cause the fatigue damage. Fatigue strength curve expressed with moment M and...
Proceedings Papers

Paper presented at the The First ISOPE Pacific/Asia Offshore Mechanics Symposium, June 24–28, 1990
Paper Number: ISOPE-P-90-113
... irrespective of the original residual stress pattern. Introduction The fatigue strength of welded tubular joints suffers generally and partly because of the residual stresses induced by the welding process. In recent fatigue tests carried out on such joints[l j, it was found that the welding residual...
Proceedings Papers

Paper presented at the The First ISOPE Pacific/Asia Offshore Mechanics Symposium, June 24–28, 1990
Paper Number: ISOPE-P-90-128
... ABSTRACT: Fatigue strength of carbon fiber reinforced plastic, CFRP, in which pitch type carbon fiber was combined in an epoxide resin matrix with a fiber content of 33% by weight, was studied by means of an AE method and fractography. For CFRP, the ratio of fatigue strength to ultimate...
Proceedings Papers

Paper presented at the The First ISOPE Pacific/Asia Offshore Mechanics Symposium, June 24–28, 1990
Paper Number: ISOPE-P-90-044
... ABSTRACT: As marine riser strings are used in seawater under high varying loads and the fatigue strengths of high tensile strength steels are remarkably lower in seawater than that in air, the most principal performance properties of a marine riser with threaded connection are the seal...
Proceedings Papers

Paper presented at the The First ISOPE Pacific/Asia Offshore Mechanics Symposium, June 24–28, 1990
Paper Number: ISOPE-P-90-111
... higher tensile strength than that of the base metal during the tension fatigue test under the applied stress of high frequency (l0cps). However at the lower cycle than about 2x10 5 , the fatigue strength of the notched weld metal was lower than that, resulting from the upper applied stress effecting on...

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