Fatigue life analysis of a composite materials structure using allowable strain criteria

IF 1 4区工程技术 Q3 ENGINEERING, AEROSPACE

Proceedings of the Institution of Mechanical Engineers Part G-Journal of Aerospace Engineering Pub Date : 2024-09-19 DOI:10.1177/09544100241283329

Nikolay Turbin, Kirill Shelkov, Yuri Ivanov, Nikolay Chashin

引用次数: 0

Abstract

In the current research, a method for estimation of the durability of a structure based on an integrated calculation of static and fatigue strength according to the criterion of allowable strain is presented. The proposed technique is demonstrated for the upper stringer panel of the wing design. In the course of calculations, several combinations of design service objectives, levels of allowable strains, and levels of cyclic stresses were considered. As a result, the relative values of stiffness degradation and the required safety ratios of static strength were obtained.

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利用容许应变标准分析复合材料结构的疲劳寿命

在当前的研究中，提出了一种根据容许应变准则综合计算静态和疲劳强度的结构耐久性估算方法。针对机翼设计的上弦面板演示了所提出的技术。在计算过程中，考虑了设计服务目标、容许应变水平和循环应力水平的几种组合。结果得出了刚度退化的相对值和所需的静态强度安全比。

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

Proceedings of the Institution of Mechanical Engineers Part G-Journal of Aerospace Engineering 工程技术-工程：机械

CiteScore

2.40

自引率

18.20%

发文量

212

审稿时长

5.7 months

期刊介绍： The Journal of Aerospace Engineering is dedicated to the publication of high quality research in all branches of applied sciences and technology dealing with aircraft and spacecraft, and their support systems. "Our authorship is truly international and all efforts are made to ensure that each paper is presented in the best possible way and reaches a wide audience. "The Editorial Board is composed of recognized experts representing the technical communities of fifteen countries. The Board Members work in close cooperation with the editors, reviewers, and authors to achieve a consistent standard of well written and presented papers."Professor Rodrigo Martinez-Val, Universidad Politécnica de Madrid, Spain This journal is a member of the Committee on Publication Ethics (COPE).