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用于水泥基复合材料的钢纤维的电磁特性、纤维检测与无损检测

Electromagnetic Properties of Steel Fibres for Use in Cementitious Composites, Fibre Detection and Non-Destructive Testing.

作者信息

Künzel Karel, Papež Václav, Carrera Kristýna, Konrád Petr, Mára Michal, Kheml Přemysl, Sovják Radoslav

机构信息

Department of Electrotechnology, Faculty of Electrical Engineering, Czech Technical University in Prague, Technická 2, 166 27 Prague 6, Czech Republic.

Experimental Centre, Faculty of Civil Engineering, Czech Technical University in Prague, Thákurova 7, 166 29 Prague 6, Czech Republic.

出版信息

Materials (Basel). 2021 Apr 22;14(9):2131. doi: 10.3390/ma14092131.

DOI:10.3390/ma14092131
PMID:33922255
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8122764/
Abstract

This paper deals with the description, measurement, and use of electromagnetic properties of ferromagnetic fibres used as dispersed fibre reinforcement in composite mixtures. Firstly, the fibres' magnetic properties are shown, and a method of measuring the hysteresis loop of fibres is proposed. The results from the measurements are presented and a discussion of the influence of measured parameters on the fibres' orientation in a magnetic field is performed. Furthermore, methods of non-destructive estimation, of their amount and orientation in the composite specimens, are discussed. The main experimental goal of this paper is to show the relationship between this non-destructive method's results and the destructive flexural strength measurements. The method is sensitive enough to provide information related to fibre reinforcement.

摘要

本文论述了用作复合混合物中分散纤维增强材料的铁磁纤维电磁特性的描述、测量及应用。首先，展示了纤维的磁性能，并提出了一种测量纤维磁滞回线的方法。给出了测量结果，并对测量参数对纤维在磁场中取向的影响进行了讨论。此外，还讨论了在复合试件中对其数量和取向进行无损估计的方法。本文的主要实验目的是展示这种无损方法的结果与破坏性抗弯强度测量结果之间的关系。该方法灵敏度足够高，能够提供与纤维增强相关的信息。

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本文引用的文献

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Cyclic Response of Steel Fiber Reinforced Concrete Slender Beams; an Experimental Study.钢纤维增强混凝土细长梁的循环响应；一项实验研究。
Materials (Basel). 2019 Apr 29;12(9):1398. doi: 10.3390/ma12091398.