基于疲劳损伤多光谱的多轴测试定制规范的实验评估

IF 5.7 2区材料科学 Q1 ENGINEERING, MECHANICAL

International Journal of Fatigue Pub Date : 2024-11-15 DOI:10.1016/j.ijfatigue.2024.108702

M. Aimé , A. Banvillet , L. Khalij , E. Pagnacco , E. Chatelet , R. Dufour

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引用次数: 0

摘要

在工业领域，经常要进行实验室测试，以评估结构在机械负载下的耐久性。这些测试通常涉及连续施加的单轴载荷，尽管运行条件通常是多轴的。为了解决这种不一致性，我们开发了一种新的频域方法，以疲劳损伤多频谱（FDmS）为基础，生成适合测试的多轴振动规范。本文通过试验分析了这一程序，展示了生成的多轴测试定制规范的准确性，以及其合成和生成交叉相关性的能力。

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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Experimental evaluation of multiaxial test-tailored specifications based on Fatigue Damage multi-Spectra

In the industrial sector, laboratory tests are frequently performed to evaluate the durability of structures under mechanical loads. These tests typically involve sequentially applied uniaxial loads, even though operational conditions are often multiaxial. To address this inconsistency, a new frequency-domain approach has been developed to generate test-tailored specifications for multiaxial vibration based on the Fatigue Damage multi-Spectrum (FDmS). This paper analyzes this procedure through experimental trials, showing the accuracy of the generated multiaxial test-tailored specifications, as well as its ability to synthesize and generate cross-correlations.

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来源期刊

International Journal of Fatigue 工程技术-材料科学：综合

CiteScore

10.70

自引率

21.70%

发文量

619

审稿时长

58 days

期刊介绍： Typical subjects discussed in International Journal of Fatigue address: Novel fatigue testing and characterization methods (new kinds of fatigue tests, critical evaluation of existing methods, in situ measurement of fatigue degradation, non-contact field measurements) Multiaxial fatigue and complex loading effects of materials and structures, exploring state-of-the-art concepts in degradation under cyclic loading Fatigue in the very high cycle regime, including failure mode transitions from surface to subsurface, effects of surface treatment, processing, and loading conditions Modeling (including degradation processes and related driving forces, multiscale/multi-resolution methods, computational hierarchical and concurrent methods for coupled component and material responses, novel methods for notch root analysis, fracture mechanics, damage mechanics, crack growth kinetics, life prediction and durability, and prediction of stochastic fatigue behavior reflecting microstructure and service conditions) Models for early stages of fatigue crack formation and growth that explicitly consider microstructure and relevant materials science aspects Understanding the influence or manufacturing and processing route on fatigue degradation, and embedding this understanding in more predictive schemes for mitigation and design against fatigue Prognosis and damage state awareness (including sensors, monitoring, methodology, interactive control, accelerated methods, data interpretation) Applications of technologies associated with fatigue and their implications for structural integrity and reliability. This includes issues related to design, operation and maintenance, i.e., life cycle engineering Smart materials and structures that can sense and mitigate fatigue degradation Fatigue of devices and structures at small scales, including effects of process route and surfaces/interfaces.