基于Matlab的疲劳寿命预测的FCG模型和图形用户界面:参数化研究

Q4 Engineering Fatigue of Aircraft Structures Pub Date : 2021-12-01 DOI:10.2478/fas-2021-0011

Tayeb Kebir, J. Correia, M. Benguediab, A. Imad

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引用次数: 0

摘要

摘要本研究的重点是预测用于工业和运输系统的机械部件的疲劳寿命。为了了解疲劳现象是如何在材料中发生的，对疲劳裂纹扩展进行了研究。这项工作的目的是在Matlab下创建一个图形用户界面（GUI），使研究人员能够对疲劳裂纹扩展进行参数研究，以预测疲劳寿命。在这项工作中，使用了三个疲劳裂纹扩展模型：Paris、Walker和Forman，分别研究了三个参数：Paris指数m、载荷比R和硬度KIC。此外，还建立了一个新的FCG模型来研究硬化参数（K′，n′）对疲劳裂纹扩展的影响。将模拟结果与文献中的结果进行比较，显示出良好的一致性。

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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A FCG Model and the Graphical User Interface Under Matlab for Predicting Fatigue Life: Parametric Studies

Abstract The focus of this research work was predicting the fatigue life of mechanical components used for industrial and transport systems. To understand how the phenomenon of fatigue occurs in a material, the fatigue crack growth is studied. The purpose of this work was to create a graphical user interface (GUI) under Matlab to allow researchers to conduct the parametric studies of fatigue crack propagation to predict fatigue life. In this work, three models for fatigue crack propagation were used: those of Paris, Walker and Forman in order to study the three parameters: the Paris exponent m, load ratio R and hardness KIC, respectively. In addition, a novel model FCG was developed to study the influence of the hardening parameters (K′, n′) on fatigue crack propagation. The comparison of the simulation results with those in the literature shows good agreement.

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来源期刊

Fatigue of Aircraft Structures Engineering-Safety, Risk, Reliability and Quality

CiteScore

0.40

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0.00%

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期刊介绍： The publication focuses on problems of aeronautical fatigue and structural integrity. The preferred topics include: full-scale fatigue testing of aircraft and aircraft structural components, fatigue of materials and structures, advanced materials and innovative structural concepts, damage tolerant design of aircraft structure, life extension and management of ageing fleets, structural health monitoring and loads, fatigue crack growth and life prediction methods, NDT inspections, airworthiness considerations.