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Status: Alert Withdrawn. Norwegian title: Marine Drilling Riser Couplings. English title: Marine Drilling Riser Couplings. Item type: Standard (Kun elektronisk). Tensile test, performed in accordance with the API Spec. 16R standard, is used to verify whether the design of key load bearing parts of the marine riser, such as. As recommended by API Spec 16R, the stress linearization and classification in one of the key steps to design a riser connector. The designers are encountering .

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API Product Specification

Environmental loading includes the hydrodynamic forces of current and waves and the motions induced by the? Determining the area used for averaging a local stress requires judgement. The riser coupling box, pin, locks, brackets, etc. The other stresses must be linearized, separated into membrane and bending components, categorized, and converted to von Mises effective stresses before they can be compared to the allowable spe.

API Spec 16R (R2010)

Sample maintenance forms or check lists as necessary. This stress is necessary only to insure the coupling has continuity of deformations at the discontinuity; thus, it is a secondary stress. Finite Element Analysis performed in accordance with 4. The manufacturer shall document the riser handling loads for which the coupling is designed and how 16d loads are applied.

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Results of SAF and peak stress calculations in accordance with 4. Hardness testing shall be performed in accordance with procedures speci? Check Out Now Continue Browsing. When L is less than T, consider section as a plate of L thickness.

Manufacturer documented traceability requirements shall include provisions for maintenance or replacement of identi? Compressive bearing load developed between box and pin members at their interface; this is accomplished by elastic deformation induced during makeup of the coupling.

The determination of a riser’s response to the environmental loading and spfc of the mechanical loads acting upon and developed within the riser require specialized computer modeling and analysis.

An example of a local membrane stress is the axial stress averaged over the 16f adjacent to the window of a dog coupling.

API Spec 16R (R)

Materials and welding requirements are included in Section 5 and dimensions in Section 6. An example of a peak stress is the high localized stress at the root of a thread in a bolt. Neither should anything contained in the publication be construed as insuring anyone against liability for infringement of letters patent.

API standards are published to facilitate the broad availability of proven, sound engineering and operating practices. Every effort has been made by the Institute to assure the accuracy and reliability of the data contained in them; however, the Institute makes no representation, warranty, or guarantee in connection with this publication and hereby expressly disclaims any liability or responsibility for loss or damage resulting from its use or for the violation of any federal, state, or municipal regulation with which this publication may con?


Marine drilling risers Design Couplings.

Examinations shall include a minimum of 1? Coupling capacity ratings are established to enable the grouping of coupling models according to their maximum stresses developed under speci?

Indication in which the length is equal to or ali than three times its width. The manufacturer shall establish the design load for each coupling design based on the methods and criteria given in this speci?

External conduits, arranged parallel to the main tube, used for circulation of?

API Product Specification

In particular, improved design methodologies are required to better assess the margins of riser couplings regarding their static performance and fatigue life. This can result in large permanent deformations, but not in structural failure. These tests shall be performed on a full-scale coupling specimen s to qualify the design of each coupling model. If preload stresses are classi? You need to log in before adding standards to the monitoring service.

All materials used shall conform to a written speci? No elongated slag inclusion shall be allowed which has a length equal to or greater than shown in Table 3.

The female coupling member. G16R01 Not for Resale. By continuing to use our website, you are agreeing to our privacy policy.