Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 3American Society of Mechanical Engineers, 2002 - Arctic regions |
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Page 89
... distribution method The equivalent fatigue stress is calculated by the following equation : ST = ŹST i = 1 ( 16 ) Since S ( i = 1,2 , ... , n ) in the Eq.16 may be treated as a group of independent random variables , it can be assumed ...
... distribution method The equivalent fatigue stress is calculated by the following equation : ST = ŹST i = 1 ( 16 ) Since S ( i = 1,2 , ... , n ) in the Eq.16 may be treated as a group of independent random variables , it can be assumed ...
Page 93
... ( distribution fitness method and life distribution method ) might be adopted to obtain a better approximate results . Distribution Fitness Method In the direct numerical simulation , the information in samples could be not utilized fully ...
... ( distribution fitness method and life distribution method ) might be adopted to obtain a better approximate results . Distribution Fitness Method In the direct numerical simulation , the information in samples could be not utilized fully ...
Page 615
... distribution , which itself is assumed to be a Weibull distribution . Palmerg et al . [ 61 ] , however , identified three problems when using this method : ( 1 ) applicability for the short crack range , ( 2 ) the threshold value , and ...
... distribution , which itself is assumed to be a Weibull distribution . Palmerg et al . [ 61 ] , however , identified three problems when using this method : ( 1 ) applicability for the short crack range , ( 2 ) the threshold value , and ...
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alloys analysis applied approximately assessment bending calculated carried coating compared composite compressive considered corrosion crack crack growth curve cycles damage defect deformation depth determined developed direction distribution effect element Engineering equation estimated evaluation experience factor failure fatigue field Figure flaw flexible fracture function geometry given Grade heat higher hydrogen important increase initial installation insulation integrity International joint length limit load locations lower material maximum mean measured mechanical method observed obtained Offshore operation parameters performed pipe plate predicted present pressure problem procedure production properties range reliability residual resistance respectively riser rope safety samples shown shows side simulation solution specimens standard steel strain strength stress structure surface Table temperature tensile tension thermal thickness titanium toughness uncertainties variables weld