A Life Model for Very High Cycle Fatigue Under Rolling Contact Loading and Its Application in Shattered Rim of Railway Wheels

IF 3.1 2区材料科学 Q2 ENGINEERING, MECHANICAL

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2025-02-09 DOI:10.1111/ffe.14599

Pengcheng Gao, Xiaolong Liu, Sijin Zhang, Deqing Ma, Kelian Luo, Wenjing Wang

引用次数: 0

Abstract

A life model for very high cycle fatigue under rolling contact loading (VRCF) and its application in shattered rim of railway wheels were investigated in this study. A model was proposed to describe the relationship among fatigue life, material hardness, inclusion size, and location in VRCF, by combining the Lunberg–Palmgren model and Murakami model. A typical VRCF behavior of shattered rim with a crack initiated from the interior inclusion and fatigue life of more than 10⁷ cycles was identified. The predicted results obtained from the VRCF model showed good agreement with the real shattered rims.

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滚动接触载荷下极高周疲劳寿命模型及其在铁路车轮破碎轮缘中的应用

本文研究了滚动接触载荷下的高周疲劳寿命模型及其在铁路车轮破碎轮缘中的应用。将Lunberg-Palmgren模型与Murakami模型相结合，建立了VRCF中疲劳寿命与材料硬度、夹杂物尺寸、位置之间的关系模型。确定了典型的由内夹杂物引发裂纹的破碎轮辋VRCF行为，疲劳寿命超过107次。VRCF模型的预测结果与实际破碎轮辋吻合较好。

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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来源期刊

Fatigue & Fracture of Engineering Materials & Structures 工程技术-材料科学：综合

CiteScore

6.30

自引率

18.90%

发文量

256

审稿时长

4 months

期刊介绍： Fatigue & Fracture of Engineering Materials & Structures (FFEMS) encompasses the broad topic of structural integrity which is founded on the mechanics of fatigue and fracture, and is concerned with the reliability and effectiveness of various materials and structural components of any scale or geometry. The editors publish original contributions that will stimulate the intellectual innovation that generates elegant, effective and economic engineering designs. The journal is interdisciplinary and includes papers from scientists and engineers in the fields of materials science, mechanics, physics, chemistry, etc.