Status: Alert Withdrawn.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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Neither should anything contained in the publication be construed as insuring anyone against liability for infringement of letters patent. For this reason, it is required that the stresses in each coupling be calculated with a? All materials used shall conform to a written speci?
Using the maximum shear stress theory of failure requires that twice the maximum shear stress, de? Interactive Graphics Video Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal.
Notch impact tests shall be performed with the test specimens oriented longitudinally to the grain orientation of the parent metal. Metal impression stamp shall be used in low stressed area on both box and pin ends.
API Spec 16R (R)
Section 3 contains a description of the function of marine riser couplings, along with the de? Graphic chronological schedule of routine maintenance tasks. Examples of primary stress are the membrane stress in a rod loaded by an axial force and the bending stress in a simple beam. A coupling having two? The loads experienced when landing on and hanging from the spider while running and pulling riser may be simulated.
Shibboleth is an access management service that provides single sign-on protected resources. If separation can occur, then provision for it must be included in the analysis if possible. For simplicity, the design loading condition is taken to be axisymmetric tension.
Each part shall be visually examined. The general procedure used to determine riser system design loads and responses is described in API Recommended Practice 16Q. The formulation and publication of API 16rr is not intended in any way to inhibit anyone from using any other practices.
These tests and those described in 4.

For each, record the local peak stresses L1 through L8 using von Mises theory, explained in more detail in Appendix C for loading conditions L1 through L8. Sign into or create your free personal account.
API Product Specification
Equal to the local peak alternating stress in a component including welds divided by the nominal alternating wpec in the pipe wall at the location of the component.
Acceptable defect size may be established by industry accepted procedures or the following 16 criteria may be used. Procedure and schedule for fatigue crack inspections. An example of a peak stress is the high localized stress at the root of a thread in a bolt. The other stresses must be linearized, separated into membrane and bending components, categorized, and converted wpec von Mises effective stresses before they can be compared to the allowable stresses.
Finite Element Analysis performed in accordance sppec 4. Information concerning safety and health risks and proper precautions with respect to particular materials and conditions should be obtained from the employer, the manufacturer or supplier of that material, or the material safety data sheet.
Using this relationship, the calculated riser pipe stress at the middle of the pipe wall caused by pure bending is treated the same as that caused by pure tension. Learn about subscription and purchase options.
API Spec 16R (R2010)
For these couplings, stresses at loads other than the analysis loads can be calculated using the rules of linear interpolation or extrapolation. External conduits, arranged parallel to the main tube, used epec circulation of?
Materials for primary load carrying components, including weldments, shall additionally meet the minimum mechanical properties in Table 1. The following are de? NOK 1 ,00 excl.

Hardness testing shall be performed in accordance with procedures speci? Riser pipe outer diameter and wall thickness or wall thickness range for which the coupling is designed shall be documented. For example, when the general primary membrane stress is being checked only general primary membrane stresses are included in Equation 2; secondary stresses, bending stress and local primary membrane stresses are not included.
Visual examinations of castings and forgings shall be performed in accordance with the manufacturer’s written speci? Selected Topics in Marine Riser Design. Results of SAF and peak stress calculations in accordance with 4. G16R01 Not for Resale. The riser coupling box, pin, locks, brackets, etc. The manufacturer shall establish the design load for each coupling design based on the methods and criteria given in this speci?
The coupling rated load must be determined from these curves. Choke and kill lines are primary pressure-containing members. Next, the membrane and bending stress components must be categorized into one of the following stress categories: If your institution uses Shibboleth authentication, please contact your site administrator to receive your user name and password.
Assumptions such as load distribution, the correctness of preloading in? The coupling weight includes the in-air weight of any and all parts that contribute to the submerged, in-service weight of the coupling. Therefore, the analyst must predict where high stresses are likely to occur. For load-carrying bolts in bolted-? Dependability Engineering in System Design and Realization.
Each of the signi?
