Study on the progressive failure of reinforced thermoplastic pipes (RTPs) under axial compression

doi:10.19936/j.cnki.2096-8000.20230728.008

Abstract

Abstract: In the present paper, the numerical model of reinforced thermoplastic pipe based on ABAQUS/Explicit is established, in which the failure mode of composite laminates is determined according to Hashin-Yeh failure criterion, and a VUMAT subroutine based on a nonlinear stiffness degradation model is used to predict the progressive failure process. The progressive failure prediction method could accurately determine the failure mode and position under axial compression conditions. The progressive failure prediction method was verified by a compression experiment, and the relationship between force and displacement obtained by the numerical simulation and the experiment agreed well. Besides,the progressive failure of different failure modes of reinforced thermoplastic pipe under axial compression conditions was analyzed. The results showed that the main failure modes of reinforced thermoplastic pipes are matrix compression failure mode and fiber compression failure mode. The axial elastic stiffness of the pipe decreases with the increase of fiber’s winding angles, and each failure mode appears in different position of pipe. When the fiber’s winding angles is greater than 30°, the dominant failure mode changes from fiber compression failure mode to matrix compression failure mode.

Key words: reinforced thermoplastic pipe, axial stress, Hashin-Yeh failure criterion, stiffness degradation, progressive failure, composites

CLC Number:

TB332

BU Jiarun, LIU Wencheng, WANG Shuqing, DING Xindong. Study on the progressive failure of reinforced thermoplastic pipes (RTPs) under axial compression[J]. COMPOSITES SCIENCE AND ENGINEERING, 2023, 0(7): 57-64.

References

[1] 任少飞. 非粘结柔性立管截面力学性能及典型失效特性研究. 上海: 上海交通大学, 2015.
[2] 潘俊, 张东胜, 李鹏, 等. 深海玻纤增强柔性管截面结构设计及强度分析. 玻璃钢/复合材料, 2018(2): 21-27.
[3] 潜凌, 李培江, 张文燕. 海洋复合柔性管发展及应用现状. 石油矿场机械, 2012, 41(2): 90-92.
[4] DNV G L. Thermoplastic composite pipes: DNVGL-RP-F119. 2015.
[5] 张耘晗, 娄敏, 胡平, 等. 纤维增强复合材料柔性管强度校核及截面设计. 石油机械, 2021, 49(2): 68-74.
[6] 余彬彬. 纤维缠绕增强复合管铺设中的非线性屈曲分析与研究. 浙江: 浙江大学, 2013.
[7] XING J Z, GENG P, YANG T. Stress and deformation of multiple winding angle hybrid filament-wound thick cylinder under axial loading and internal and external pressure. Composite Structures, 2015, 131: 868-877.
[8] BAI Y, TANG J D, XU W P, et al. Collapse of reinforced thermoplastic pipe under combined external pressure and bending moment. Ocean Engineering, 2015, 94, 10-18.
[9] LIU W C, WANG S Q. An elastic stability-based method to predict the homogenized hoop elastic moduli of reinforced thermoplastic pipes (RTPs). Composite Structures, 2019, 230: 111560.
[10] LIU W C, WANG S Q. A stiffness surface method to analyze the cross-sectional mechanical properties of reinforced thermoplastic pipes subjected to axisymmetric loads. Journal of Ocean University of China, 2021, 20(4): 811-822.
[11] LIU W C, WANG S Q. Analytical prediction of buckling collapse for reinforced thermoplastic pipes based on hoop stress analysis of crushed rings. Ocean Engineering, 2019, 187: 106203.
[12] HASHIN Z, ROTEM A. A fatigue failure criterion for fiber reinforced materials. Journal of Composite Materials, 1973(7): 448.
[13] HASHIN Z. Failure criteria for unidirectional fiber composites. Journal of Applied Mechanics, 1980, 47: 329-334.
[14] YEH H Y, CHERN C. The Yeh-Stratton criterion for stress concentrations in fiber-reinforced composite materials. Journal of Composite Materials, 1998, 32: 141-157.
[15] YEH H Y, KIM C H. The Yeh-Stratton criterion for composite materials. Journal of Composite Materials, 1994, 28: 926-939.
[16] LIU W C, WANG S Q, BU J R, et al. An analytical model for the progressive failure prediction of reinforced thermoplastic pipes under axial compression. Polymer Composites, 2021, 42(6): 3011-3024.
[17] 贾子璇, 林松, 贾晓龙, 等. 基于渐进损伤数值模拟的复合材料气瓶爆破压强优化. 复合材料科学与工程, 2020(8): 25-
[18] 31.
[19] SHAO J R, ZHENG Z J. Numerical comparison between Hashin and Chang-Chang failure criteria in terms of inter-laminar damage behavior of laminated composite. Materials Research Express,2021, 8(8): 085602.
[20] 余芬, 刘国峰, 何振鹏, 等. 热力耦合作用下复合材料沉头螺栓搭接结构渐进损伤研究. 复合材料科学与工程, 2022(3): 5-14.
[21] LIU W C, WANG S Q, WANG S, et al. Theoretical and experimental study on the continuum damage mechanical (CDM) behavior of RTPs under axial tension. Ocean Engineering, 2021, 222(4): 108623.
[22] WANG Y, LOU M, ZENG X, et al. Burst capacity of reinforced thermoplastic pipes based on progressive failure criterion. Ocean Engineering, 2021, 234(4587): 109001.