Self-heating measurements at high temperature under high frequency cyclic loading

IF 7.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

International Journal of Mechanical Sciences Pub Date : 2025-05-23 DOI:10.1016/j.ijmecsci.2025.110353

Alexis Mion , Cédric Doudard , Florent Mauget , Jonathan Cormier , Vincent Roué , Ahmed Zouari , Sylvain Calloch

引用次数: 0

Abstract

The self-heating method, which is based on the measurement of temperature evolution of a specimen during cyclic loading, makes it possible to considerably reduce characterization times. The aim of this paper is to propose a test protocol at very high frequency (20 kHz) and very high temperature (up to 1000 °C), as well as an ad hoc analysis method to determine the dissipative sources field responsible for the measured temperature rise. To this end, a method for solving the 1D heat diffusion equation, based on Fourier transforms, is developed. This method is validated using finite element calculations, then applied to experimental results obtained at 850 °C on AM1, a single-crystal nickel-base superalloy, which exhibits a single regime of dissipation.

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高频循环载荷下高温自热测量

自加热方法是基于试样在循环加载过程中温度演变的测量，可以大大减少表征时间。本文的目的是提出一种在甚高频（20khz）和极高温度（高达1000°C）下的测试方案，以及一种特殊的分析方法来确定导致测量温升的耗散源场。为此，提出了一种基于傅里叶变换的一维热扩散方程求解方法。通过有限元计算验证了该方法的有效性，并将其应用于850°C下单晶镍基高温合金AM1的实验结果，该合金呈现单一耗散状态。

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

International Journal of Mechanical Sciences 工程技术-工程：机械

CiteScore

12.80

自引率

17.80%

发文量

769

审稿时长

19 days

期刊介绍： The International Journal of Mechanical Sciences (IJMS) serves as a global platform for the publication and dissemination of original research that contributes to a deeper scientific understanding of the fundamental disciplines within mechanical, civil, and material engineering. The primary focus of IJMS is to showcase innovative and ground-breaking work that utilizes analytical and computational modeling techniques, such as Finite Element Method (FEM), Boundary Element Method (BEM), and mesh-free methods, among others. These modeling methods are applied to diverse fields including rigid-body mechanics (e.g., dynamics, vibration, stability), structural mechanics, metal forming, advanced materials (e.g., metals, composites, cellular, smart) behavior and applications, impact mechanics, strain localization, and other nonlinear effects (e.g., large deflections, plasticity, fracture). Additionally, IJMS covers the realms of fluid mechanics (both external and internal flows), tribology, thermodynamics, and materials processing. These subjects collectively form the core of the journal's content. In summary, IJMS provides a prestigious platform for researchers to present their original contributions, shedding light on analytical and computational modeling methods in various areas of mechanical engineering, as well as exploring the behavior and application of advanced materials, fluid mechanics, thermodynamics, and materials processing.