中国海洋大学学报（自然科学版）2026，Vol.56Issue(4)：147-155,9.DOI:10.16441/j.cnki.hdxb.20250223
轴对称循环载荷作用下非黏结柔性管力学特性研究
Study on the Mechanical Characteristics of Unbonded Flexible Pipes Under Axisymmetric Cyclic Loads
摘要
Abstract
To investigate the mechanical behavior of unbonded flexible pipes under axisymmetric cyclic loading,this study accounts for nonlinear effects including large structural deformations,interlayer con-tact between multiple layers,and interlayer friction.A complete structural model of an eight-layer un-bonded flexible pipe was established using the ABAQUS finite element analysis software.The structural deformation characteristics of the flexible pipe under two types of axisymmetric cyclic loading,axial ten-sion-compression cyclic loading and bidirectional torsional cyclic loading,were studied along with the in-fluence of interlayer friction coefficient on the pipe's mechanical properties under these two loading con-ditions.The results indicate that the load-deformation curves of the flexible pipe under axisymmetric cy-clic loading exhibit hysteretic characteristics.Both the deformation characteristics of the tensile armor layer steel strips and the interlayer friction coefficient have a significant impact on the hysteretic behav-ior of the axisymmetric cyclic load-deformation curves.关键词
非黏结柔性管/轴对称循环载荷/滞回曲线/抗拉铠装层/层间摩擦系数Key words
unbonded flexible pipe/axisymmetric cyclic load/hysteretic curve/tensile armor layer/interlayer friction coefficient分类
海洋科学引用本文复制引用
马维林,尹延昊,吕恩宇,孙大林,田浩宇..轴对称循环载荷作用下非黏结柔性管力学特性研究[J].中国海洋大学学报（自然科学版）,2026,56(4):147-155,9.基金项目
山东省自然科学基金项目(ZR2022ME184) （ZR2022ME184）
国家自然科学基金项目(51609222)资助Supported by the Natural Science Foundation of Shandong Province,China(ZR2022ME184) （51609222）
the National Natural Science Foundation of China(51609222) （51609222）
