| Full text | |
| Author(s): |
Total Authors: 2
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| Affiliation: | [1] Univ Sao Paulo, Escola Politecn, BR-05508970 Sao Paulo, SP - Brazil
Total Affiliations: 1
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| Document type: | Journal article |
| Source: | MARINE STRUCTURES; v. 42, p. 95-114, JUL 2015. |
| Web of Science Citations: | 10 |
| Abstract | |
Helically armored cables or pipes find a wide range of applications as structural members in engineering. An example of this is the increasing use of flexible pipes in the oil offshore production. Although keeping a geometrical similarity with other helically armored structures such as wire ropes and ACSR conductors, and borrowing from them a useful methodology for the structural analysis, some care must be taken in order not to indiscriminately use an approach which was not thought for a flexible pipe: internal and external pressures, for instance, are a great concern in the analysis of flexible pipes, but obviously not for wire ropes. This work aims at giving some additional contribution to the structural response of flexible pipes when subjected to axisymmetric loads, including the effect of both internal and external pressure in pipe displacements. Derivation of linear operators, relating the stress-resultants to their related displacements or deformations in each of the layers of the pipe, as well as the process of deriving an analogous linear operator to represent the behavior of the pipe as a whole, are clearly presented, highlighting interesting mathematical aspects and their associated physical meaning. A numerical case study of a 2.5 `' flexible pipe subjected to traction and internal pressure is also presented and discussed. (C) 2015 Elsevier Ltd. All rights reserved. (AU) | |
| FAPESP's process: | 13/20305-0 - A uniqueness result for the identification of asyncronous sources in vibrating continuous beams |
| Grantee: | Alexandre Kawano |
| Support Opportunities: | Regular Research Grants |