NDLI: Numerical investigation on the ultimate strength of stiffened cylindrical shells considering residual stresses and shakedown

Content Provider	Springer Nature Link
Author	Cerik, Burak Can Cho, Sang Rai
Copyright Year	2013
Abstract	In this paper, the effects of residual stresses on the ultimate strength of stiffened cylinders are numerically investigated with an emphasis on shakedown which might occur during the service of these structures. Residual stresses caused by two types of actions, namely, cold bending and welding, are simulated with simplified approaches in numerical analysis. Cold bending stresses are simulated by simulating cold rolling and elastic springback until the desired curvature for cylindrical shell is obtained. Welding is simulated by applying cooling down to a certain temperature on the elements adjacent to stiffener-shell joints to obtain weld-shrinkage with realistic magnitudes. Six small-scale externally pressurized ring-stiffened cylinder models are utilized to evaluate the appropriateness of the method for inclusion of welding residual stresses in numerical analysis by comparing the experimental and numerical results. Ultimate strength analyses are then performed for a reference ring-stiffened cylinder model under radial pressure and stringer-stiffened cylinder under axial loading. To assess the effect of shakedown, after applying cyclic compressive loading to the ring-stiffened cylinder model, the level of stress relief and the change in the ultimate strength are evaluated.
Starting Page	524
Ending Page	534
Page Count	11
File Format	PDF
ISSN	09484280
Journal	Journal of Marine Science and Technology
Volume Number	18
Issue Number	4
e-ISSN	14378213
Language	English
Publisher	Springer Japan
Publisher Date	2013-06-08
Publisher Place	Tokyo
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Stiffened cylinder Ultimate strength Residual stress Fabrication effect Shakedown Automotive Engineering Engineering Fluid Dynamics Engineering Design Offshore Engineering Mechanical Engineering
Content Type	Text
Resource Type	Article
Subject	Oceanography Ocean Engineering Mechanics of Materials Mechanical Engineering

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