... Abstract A new optical measurement approach for minimum bending radius (MBR) tests of flexible pipes is presented. The method is based on an accurate tracking of the elastica through image processing. The new approach shows to be not only appropriate to the standard measurement requirements...

... criteria are met. The design criteria include the maximum tension, maximum compression and minimum bend radius for the umbilical, and the maximum tension, minimum bend radius and maximum angle relative to the axis of the bellmouth for the riser. The method has been used successfully for the verification...

... Abstract Strain calculations, pitting resistance, and chloride stress corrosion cracking testing are currently used as the key indicators to delimit the minimum bend radius for 22% chrome duplex stainless steels without heat treatment to be 3.3 times the tube diameter for u-bend heat exchanger...

... that the minimum bend radius (MBR) of the flexible pipe is not violated during the installation. Nowadays there is no way to assess this information in real time, except visually, thus the operation is very dependent on the pipe-laying engineer experience. In critical situations, to mitigate risks, a team...

... after changes were made in the infrastructure facilities. The additional challenges faced were on manipulating the tensions around the bend stiffener and maintaining allowable Minimum Bend Radius (MBR) near the bend stiffener portion. It discusses about the sequence of operation, the initial planning...

... 11.59 23.29 180 14.37 8.34 129.7 2.08 Power Cable Mooring Lines Clumps 1889 Cable Minimum Bend Radius Analysis In addition to the tension, the minimum bend radius is another key performance subject of a power cable design. Small bend radiuses against the allowable minimum given by cable suppliers may...

... ABSTRACT: Application of flexural test methods to polymeric materials has two different fundamental purposes. For testing of polymeric low pressure pipe components, tests are used to determine bend stiffness and minimum bend radius. With flexural tests, the creep or relaxation characteristics...

...) between end-fittings) was submitted to a test of stability under internal pressure. The flexible, initially straight and full of oil, was bent to a measured minimum bending radius of 5.22 ft. (1.59 m). (Figure 2) Maximum force (F) developed for this operation was about 630 kgf. Internal pressure (up...

... to the characteristics of external loads acted on the cables during the service period. The power cable is called static if variation of the external loads is negligible. The structural design criteria of the static power cable mainly focus on strength of the cross section, such as minimum bending radius, maximum...

... resistance, increasing its diameter and requiring a larger storage reel in accordance with minimum bending radius (MBR) to avoid damage to the downline, compromising deck layout. Complex manufacturing increases procurement costs and timing, and makes on-site repair capabilities impossible. However, 3.5...

... throughout all types of industry has proved that fast transfer rates cannot be obtained without having a minimum bend radius of 10–15 times the pipe's diameter. Yet generally much smaller radii bends are used in the oil industry with the result that most operations take place using receiving silos which...

... bend radius, minimum and maximum axial load) is very well correlated to the heave velocity of the vessel at the location of the hang-off point. In addition, the top tension is well correlated to the heave acceleration at this point. The paper describes how the latter has been demonstrated and the lay...

... of technical requirements for the design and installation of 34 risers, some premises were established by PETROBRAS as follows: In any situation of the FPSO draft and environmental conditions the risers should not be over tensioned, compressed or extensive bend (less than their minimum bending radius...

... in our vrave tank. The enourmous volume of data obtained by this testing was processed by a data recorder, A-D converter and computer, and many results were obtained. This report describes test methods, maximum load, minimum bending radius acting on the hoses under various conditions of waves. FIELD TEST...