Fatigue Characteristics and Mechanisms of Additional Damping Structures With Entangled Metallic Wire Material

IF 3.1 2区材料科学 Q2 ENGINEERING, MECHANICAL

Fatigue & Fracture of Engineering Materials & Structures Pub Date : 2024-12-02 DOI:10.1111/ffe.14519

Yu Tang, Jiasong Liang, Dang Wei, Baoquan Xiong, Zhihui Zhu, Yiwan Wu, Hongbai Bai

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引用次数: 0

Abstract

Under vibration conditions, continuous alternating loads cause fatigue damage to structures, affecting their stability, durability, and overall safety. In this paper, the additional damping structures with entangled metallic wire material (EMWM) is proposed. Dynamic tests with different loading frequencies and loading amplitudes are carried out to evaluate the energy dissipation and stiffness characteristics of the different structures in terms of energy dissipation, loss factor, and average stiffness. Fatigue tests are conducted, and the fatigue life tests are applied with different loading amplitudes and loading frequencies using displacement control, and the fatigue properties are obtained under different numbers of cyclic loading. The test results are analyzed with respect to the energy dissipation mechanism of EMWM and the characteristics of the additional damping structure. The hysteresis curves under different loading times are identified by parameters, and the fatigue mechanical models are constructed. Comparison between the predicted data of the model and the hysteresis curve data of the test indicates that the model has high accuracy.

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金属丝缠绕附加阻尼结构的疲劳特性及机理

在振动条件下，连续交变载荷会对结构造成疲劳损伤，影响结构的稳定性、耐久性和整体安全性。本文提出了一种带有缠绕金属丝材料的附加阻尼结构。通过不同加载频率和加载幅值的动力试验，从耗能、损耗系数和平均刚度等方面对不同结构的耗能和刚度特性进行了评价。进行了疲劳试验，采用位移控制方法对不同加载幅值和加载频率进行了疲劳寿命试验，获得了不同循环加载次数下的疲劳特性。对试验结果进行了EMWM耗能机理和附加阻尼结构特性的分析。通过参数识别不同加载时间下的滞回曲线，建立了疲劳力学模型。将模型预测数据与试验迟滞曲线数据进行比较，表明模型具有较高的精度。

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.