COLLAPSE ARRESTORS FOR DEEPWATER PIPELINES: FINITE ELEMENT MODELS AND EXPERIMENTAL VALIDATIONS FOR DIFFERENT CROSS-OVER MECHANISMS

摘要

Using finite element models it is possible to determine the cross-over external pressure of different pipeline arrestor designs. In this paper these finite element models are discussed and validated by comparing their results with experimental determinations. The flipping and flattening cross-over mechanisms are considered in the experimental validation of the numerical models.