Experimental and numerical investigations of induction heating for Ti-6Al-4V sheets and epoxy/carbon fiber composite laminates

IF 0.9 4区工程技术 Q3 ENGINEERING, MULTIDISCIPLINARY Journal of Engineering Research Pub Date : 2024-06-01 DOI:10.1016/j.jer.2023.10.009

Aysun Guven Citir , Serkan Toros , Fahrettin Ozturk

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Abstract

The objective of this study is to present the electromagnetic and the thermal multi-field coupling model of the induction heating process for numerical simulation based on the finite element method. One of the most important difficulties encountered in the induction heating processes is to ensure homogeneous temperature distribution throughout the part. To improve the uniform temperature distribution in the sheet, the induction heating system is modelled with the ANSYS software taking into account some operational and geometrical parameters including current density and coupling distance between induction coil and sheet. Induction heating simulations were performed for all simulations at 20 kHz frequency ANSYS Maxwell. The numerical model has been verified by the conducted experiments for Ti6Al4V at the current of 50 A, 125 A, and 200 A, and the 1 mm and 3 mm gap distances. The relative error of the maximum temperature between the experiment and simulation was found around 14 % recorded at 25 s measurements. In addition, the effects of the current and the frequencies on the induction heating were evaluated by the verified numerical model for epoxy/carbon fiber (UD prepreg) and epoxy/carbon fiber (Woven prepreg) plates. The results show that the induction heating model is suitable and efficient to determine the temperature distribution within the thin plates by the finite element method.

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Ti-6Al-4V 板材和环氧树脂/碳纤维复合材料层压板感应加热的实验和数值研究

本研究的目的是提出感应加热过程的电磁和热多场耦合模型，并基于有限元法进行数值模拟。感应加热过程中遇到的最重要困难之一是确保整个零件的温度分布均匀。为了改善板材的均匀温度分布，使用 ANSYS 软件对感应加热系统进行建模，并考虑到一些操作和几何参数，包括电流密度以及感应线圈和板材之间的耦合距离。所有模拟均在 20 kHz 频率的 ANSYS Maxwell 下进行。在电流为 50 A、125 A 和 200 A 以及间隙距离为 1 mm 和 3 mm 时，对 Ti6Al4V 进行的实验验证了数值模型。根据 25 秒的测量记录，实验与模拟之间的最高温度相对误差约为 14%。此外，通过验证环氧树脂/碳纤维（UD 预浸料）和环氧树脂/碳纤维（编织预浸料）板的数值模型，评估了电流和频率对感应加热的影响。结果表明，用有限元法确定薄板内的温度分布时，感应加热模型是合适而有效的。

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来源期刊

Journal of Engineering Research ENGINEERING, MULTIDISCIPLINARY-

CiteScore

1.60

自引率

10.00%

发文量

181

审稿时长

20 weeks

期刊介绍： Journal of Engineering Research (JER) is a international, peer reviewed journal which publishes full length original research papers, reviews, case studies related to all areas of Engineering such as: Civil, Mechanical, Industrial, Electrical, Computer, Chemical, Petroleum, Aerospace, Architectural, Biomedical, Coastal, Environmental, Marine & Ocean, Metallurgical & Materials, software, Surveying, Systems and Manufacturing Engineering. In particular, JER focuses on innovative approaches and methods that contribute to solving the environmental and manufacturing problems, which exist primarily in the Arabian Gulf region and the Middle East countries. Kuwait University used to publish the Journal "Kuwait Journal of Science and Engineering" (ISSN: 1024-8684), which included Science and Engineering articles since 1974. In 2011 the decision was taken to split KJSE into two independent Journals - "Journal of Engineering Research "(JER) and "Kuwait Journal of Science" (KJS).