Composite pipes failure under combined axisymmetric and asymmetric loading: Semi-analytical solution and stress superposition

IF 6.3 2区材料科学 Q1 MATERIALS SCIENCE, COMPOSITES

Composite Structures Pub Date : 2025-03-21 DOI:10.1016/j.compstruct.2025.119109

T. Wang , O. Menshykov , M. Menshykova

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引用次数: 0

Abstract

This study introduces the innovative two-level semi-analytical solution to predict failure in thick-walled composite pipes under complex loading conditions, including combined axial, pressure, torsion, and bending loads. Rooted in 3D elasticity theory, the model uses a stress superposition method to calculate stresses in composite pipes under combined symmetric and asymmetric loads, demonstrating appropriate agreement with FE models developed for validation.

A comprehensive parametric study examines the influence of winding angle, stacking sequence, and load magnitude on failure behaviour, utilizing three distinct failure criteria. The results unveil significant coupling effects between design parameters and loading conditions, providing crucial insights into failure modes and their locations. The developed analytical model and maximum load diagram serve as powerful and efficient tools for engineers, enabling sophisticated failure analysis and optimal design under complex loading conditions. In particular, it was found that combinations of low and medium winding angles offer superior anti-failure performance.

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轴对称与非对称复合载荷作用下复合管道失效：半解析解与应力叠加

本文介绍了一种新颖的两级半解析解，用于预测复合材料厚壁管道在复杂载荷条件下的失效，包括轴向、压力、扭转和弯曲载荷。该模型基于三维弹性理论，采用应力叠加法计算复合材料管道在对称和非对称复合载荷下的应力，与为验证而开发的有限元模型吻合较好。一项全面的参数研究考察了绕组角度、堆叠顺序和负载大小对失效行为的影响，利用三种不同的失效准则。结果揭示了设计参数和加载条件之间的显著耦合效应，为失效模式及其位置提供了重要见解。开发的分析模型和最大载荷图为工程师提供了强大而有效的工具，可以在复杂载荷条件下进行复杂的失效分析和优化设计。特别是，发现低和中等绕组角的组合提供了更好的抗失效性能。

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来源期刊

Composite Structures 工程技术-材料科学：复合

CiteScore

12.00

自引率

12.70%

发文量

1246

审稿时长

78 days

期刊介绍： The past few decades have seen outstanding advances in the use of composite materials in structural applications. There can be little doubt that, within engineering circles, composites have revolutionised traditional design concepts and made possible an unparalleled range of new and exciting possibilities as viable materials for construction. Composite Structures, an International Journal, disseminates knowledge between users, manufacturers, designers and researchers involved in structures or structural components manufactured using composite materials. The journal publishes papers which contribute to knowledge in the use of composite materials in engineering structures. Papers deal with design, research and development studies, experimental investigations, theoretical analysis and fabrication techniques relevant to the application of composites in load-bearing components for assemblies, ranging from individual components such as plates and shells to complete composite structures.