Development of Methodology to Assess the Failure Behaviour of Bamboo Single Fibre by Acoustic Emission Technique

被引：1

作者：

Alam M.S. ^{[1
]}

Gulshan F. ^{[2
]}

Ahsan Q. ^{[3
]}

Wevers M. ^{[4
]}

Pfeiffer H. ^{[4
]}

van Vuure A.-W. ^{[4
]}

Osorio L. ^{[4
]}

Verpoest I. ^{[4
]}

机构：

[1] NDT Division, Atomic Energy Centre Dhaka, Dhaka

[2] Department of Materials and Metallurgical Engineering, Bangladesh University of Engineering and Technology, Dhaka

[3] Faculty of Manufacturing Engineering, Universiti Teknikal Malaysia Melaka, Melaka

[4] Department of Metallurgy and Materials Engineering, KU Leuven, Leuven

来源：

Journal of The Institution of Engineers (India): Series D | 2017年 / 98卷 / 1期

关键词：

Acoustic emission; Bamboo fibre; Load drop;

D O I：

10.1007/s40033-016-0118-8

中图分类号：

学科分类号：

摘要：

Acoustic emission (AE) was used as a tool for detecting, evaluating and for better understanding of the damage mechanism and failure behavior in composites during mechanical loading. Methodology was developed for tensile test of natural fibres (bamboo single fibre). A series of experiments were performed and load drops (one or two) were observed in the load versus time graphs. From the observed AE parameters such as amplitude, energy, duration etc. significant information corresponding to the load drops were found. These AE signals from the load drop occurred from such failure as debonding between two elementary fibre or from join of elementary fibre at edge. The various sources of load at first load drop was not consistent for the different samples (for a particular sample the value is 8 N, stress: 517.51 MPa). Final breaking of fibre corresponded to saturated level AE amplitude of preamplifier (99.9 dB) for all samples. Therefore, it was not possible to determine the exact AE energy value for final breaking. Same methodology was used for tensile test of three single fibres, which gave clear indication of load drop before the final breaking of first and second fibre. © 2016, The Institution of Engineers (India).

引用

页码：9 / 17

页数：8

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