Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Bending of Pipelines to High Levels of Strain
Abstract There is currently a very considerable emphasis of cost saving in the installation and operating practices of sub-sea pipelines. The industry is now well established and extensive experience exists to guide developments in the use of materials and protection against failure. To a very large degree the design of pipelines has been governed by codes based on limiting conditions applied to stress. This has the effect of preventing a highly efficient use of expensive pipeline material. If the pipe geometries and operating condition can be based on limiting conditions of strain, allowing exceedance of yield stresses, a potentially significant saving on costs could be effected. This paper presents a brief review of some information with regard to the use of strain based criteria and the bases of the limits which may apply to the use of strain criteria. The information relates to the changes of geometry and material properties which occur when pipelines are bent to high levels of strain. It is concluded generally that in certain operating conditions and installation techniques high levels of straining could be permitted without undermining the intrinsic safety of the pipeline.
Bending of Pipelines to High Levels of Strain
Abstract There is currently a very considerable emphasis of cost saving in the installation and operating practices of sub-sea pipelines. The industry is now well established and extensive experience exists to guide developments in the use of materials and protection against failure. To a very large degree the design of pipelines has been governed by codes based on limiting conditions applied to stress. This has the effect of preventing a highly efficient use of expensive pipeline material. If the pipe geometries and operating condition can be based on limiting conditions of strain, allowing exceedance of yield stresses, a potentially significant saving on costs could be effected. This paper presents a brief review of some information with regard to the use of strain based criteria and the bases of the limits which may apply to the use of strain criteria. The information relates to the changes of geometry and material properties which occur when pipelines are bent to high levels of strain. It is concluded generally that in certain operating conditions and installation techniques high levels of straining could be permitted without undermining the intrinsic safety of the pipeline.
Bending of Pipelines to High Levels of Strain
Walker, A. C. (Autor:in)
01.01.1994
8 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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