保护层破损时柔性立管螺旋铠装层压缩失效模式

doi:10.16183/j.cnki.jsjtu.2024.087

上海交通大学学报 ›› 2026, Vol. 60 ›› Issue (1): 133-141.doi: 10.16183/j.cnki.jsjtu.2024.087

保护层破损时柔性立管螺旋铠装层压缩失效模式

王华琳¹, 吴尚华², 王刚³, 杨志勋⁴(), 毛彦东⁵, 陆俣丞⁴, 卢海龙⁶

¹ 中船西南(重庆)装备研究院有限公司, 重庆 401123
² 大连理工大学化工海洋与生命学院, 辽宁盘锦 124221
³ 大连交通大学土木工程学院, 辽宁大连 116028
⁴ 哈尔滨工程大学机电工程学院, 哈尔滨 150001
⁵ 大连理工大学宁波研究院, 浙江宁波 315016
⁶ 大连理工大学力学与航空航天学院, 辽宁大连 116024

收稿日期:2024-03-15 修回日期:2024-04-22 接受日期:2024-05-22 出版日期:2026-01-28 发布日期:2026-01-27
通讯作者: 杨志勋 E-mail:yangzhixun@hrbeu.edu.cn.
作者简介:王华琳(1997—),硕士,从事海洋工程装备的结构设计及仿真优化研究工作.
基金资助:
国家自然科学基金项目(52001088);山东省重大科技创新项目(2019JZZY010801);黑龙江省自然科学基金项目(LH2021E050)

Compression Failure Mode of Flexible Pipe Reinforced Armor Layer with Damaged Protective Layer

WANG Hualin¹, WU Shanghua², WANG Gang³, YANG Zhixun⁴(), MAO Yandong⁵, LU Yucheng⁴, LU Hailong⁶

¹ CSSC Southwest (Chongqing) Equipment Research Institute Co., Ltd., Chongqing 401123, China
² School of Chemical Engineering, Ocean and Life Sciences, Dalian University of Technology, Panjin 124221, Liaoning, China
³ School of Civil Engineering, Dalian Jiaotong University, Dalian 116028, Liaoning, China
⁴ College of Mechanical and Electrical Engineering, Harbin Engineering University, Harbin 150001, China
⁵ Ningbo Research Institute, Dalian University of Technology, Ningbo 315016, Zhejiang, China
⁶ School of Mechanics and Aerospace Engineering, Dalian University of Technology, Dalian 116024, Liaoning, China

Received:2024-03-15 Revised:2024-04-22 Accepted:2024-05-22 Online:2026-01-28 Published:2026-01-27
Contact: YANG Zhixun E-mail:yangzhixun@hrbeu.edu.cn.

摘要/Abstract

摘要：

为研究柔性立管压缩力学行为和保护层(加强带和外护套)受损对螺旋铠装层失效模式的影响,建立了非线性有限元模型.首先,分析了工程中常见破口形式,将其归类为4种较为规整的破口形式.通过未破口保护层的数值分析结果,说明螺旋铠装层受压的整体变形过程和变形特性.然后,通过对比保护层和螺旋铠装层的支反力时程曲线,进一步总结了受损保护层对螺旋铠装层失效不稳定性的影响.研究发现破口抵抗径向扩张能力与整体结构承压能力息息相关,同时破口形状对螺旋铠装层失效模式存在一定的诱导作用.外护套的波纹状失效模式或层内错动会瞬时强化螺旋铠装层,抑制其环向隆起失效.最后,定义了常见的螺旋铠装层的压缩失效模式,为海洋工程实践中的失效分析及应对策略提供有效的参考.

关键词: 柔性立管, 螺旋铠装层, 保护层, 破口形式, 压缩失效模式

Abstract:

A nonlinear finite element model was established to study the compressive mechanical behavior of flexible pipes and the failure mode of reinforced armor layer with the damage protective layer. First, the common damage shapes in engineering were analyzed and classified into four regular damage shapes. Then, the undamaged numerical model was analyzed. The deformation process and characteristics of tensile armor layer were elaborated. The force history curves of each layer were compared, and the impact of damage protection layer on the instability of reinforced armor layer failure was summarized. The results showed that the ability to resist radial expansion due to damage is related to the ability of the structure to withstand compression. The shape of the damage has an inducing effect on the failure mode of the reinforced armor layer. The ripple failure mode or internal dislocation of the outer sheath can instantly strengthen the reinforced armor layer and suppress circumferential buckling. Finally, the common compression failure modes of reinforced armor layers were defined, providing valuable references for failure analysis and response strategies in marine engineering.

Key words: flexible pipe, reinforced armor layer, protective layer, damaged mode, compression failure mode

中图分类号:

P756.2

王华琳, 吴尚华, 王刚, 杨志勋, 毛彦东, 陆俣丞, 卢海龙. 保护层破损时柔性立管螺旋铠装层压缩失效模式[J]. 上海交通大学学报, 2026, 60(1): 133-141.

WANG Hualin, WU Shanghua, WANG Gang, YANG Zhixun, MAO Yandong, LU Yucheng, LU Hailong. Compression Failure Mode of Flexible Pipe Reinforced Armor Layer with Damaged Protective Layer[J]. Journal of Shanghai Jiao Tong University, 2026, 60(1): 133-141.

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参考文献 24

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立管构件组成	截面尺寸/ (mm×mm)	厚度/ mm	钢丝数	缠绕角度/(°)	外径/ mm
刚性内核	—	—	—	—	210.5
抗拉铠装层	8×4	—	52	38	214.5
加强带	—	0.2	—	—	214.9
外护套	—	7	—	—	228.9

层	弹性模量/ MPa	泊松比	密度/ (kg·m^-3)	屈服强度/ MPa	抗拉强度/ MPa
抗拉铠装层(钢)	207 000	0.30	7 800	650	1 172.58
加强带(Kevlar)	129 000	0.31	1 000	1 310	—
外护套(HDPE)	571	0.45	1 000	20.74	—

保护层破损时柔性立管螺旋铠装层压缩失效模式

Compression Failure Mode of Flexible Pipe Reinforced Armor Layer with Damaged Protective Layer

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