高速铁路CRTS空化损伤Ⅲ无砟轨道：机理与数值分析

IF 4.4 2区工程技术 Q1 ENGINEERING, MECHANICAL

Engineering Failure Analysis Pub Date : 2025-04-26 DOI:10.1016/j.engfailanal.2025.109628

Guihong Xu , Wenbo Deng , Shixin Ran , Li He , Li Duan , Caiyou Zhao , Juan Juan Ren , Mingwei He

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引用次数: 0

摘要

高速铁路CRTSⅢ无砟轨道承受复杂的条形结构体系、高周疲劳载荷和复杂的雨水环境，由于层间断裂和裂纹扩展，面临着重大的维护挑战。本文研究了多雨地区的空化和脱空损伤机制，重点研究了轨道层间裂缝内的水动力学。利用ANSYS-FLUENT软件进行了数值模拟，分析了空化现象及其对轨道结构完整性的影响。这些发现为了解多雨地区的损害进展提供了见解，并有助于更好地理解潜在的机制。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Cavitation-induced damage in high-speed railway CRTSⅢ ballastless track: Mechanism and numerical insights

The high-speed railway CRTSⅢ ballastless track, subjected to complex strip structural systems, high-cycle fatigue loads, and intricate rainwater environments, faces significant maintenance challenges due to interlayer disconnection and crack propagation. This study investigates the cavitation and dehollowing damage mechanisms in rainy areas, focusing on the water dynamics within track interlayer cracks. Numerical simulations using ANSYS-FLUENT software were conducted to analyze the cavitation phenomenon and its impact on the structural integrity of the track. The findings provide insights into the damage progression in rainy regions and contribute to a better understanding of the underlying mechanisms.

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来源期刊

Engineering Failure Analysis 工程技术-材料科学：表征与测试

CiteScore

7.70

自引率

20.00%

发文量

956

审稿时长

47 days

期刊介绍： Engineering Failure Analysis publishes research papers describing the analysis of engineering failures and related studies. Papers relating to the structure, properties and behaviour of engineering materials are encouraged, particularly those which also involve the detailed application of materials parameters to problems in engineering structures, components and design. In addition to the area of materials engineering, the interacting fields of mechanical, manufacturing, aeronautical, civil, chemical, corrosion and design engineering are considered relevant. Activity should be directed at analysing engineering failures and carrying out research to help reduce the incidences of failures and to extend the operating horizons of engineering materials. Emphasis is placed on the mechanical properties of materials and their behaviour when influenced by structure, process and environment. Metallic, polymeric, ceramic and natural materials are all included and the application of these materials to real engineering situations should be emphasised. The use of a case-study based approach is also encouraged. Engineering Failure Analysis provides essential reference material and critical feedback into the design process thereby contributing to the prevention of engineering failures in the future. All submissions will be subject to peer review from leading experts in the field.