ACOUSTIC-EMISSION DETECTION USING A PIEZOELECTRIC STRAIN-GAUGE FOR FAILURE MECHANISM IDENTIFICATION IN CFRP

被引：9

作者：

WHITE, RG

TRETOUT, H

机构：

[1] Institute of Sound and Vibration Research, University of Southampton, Southampton, England

来源：

COMPOSITES | 1979年 / 10卷 / 02期

关键词：

D O I：

10.1016/0010-4361(79)90011-9

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

An experimental technique for monitoring the fatigue of carbon fibre-reinforced plastics plates is described. The technique is based upon the use of a piezoelectric strain gauge for acoustic emission detection. Count rate and spectral analysis procedures may be used in the analysis of the measured signals and their application for the characterisation of failure mechanisms is demonstrated. Results from flexural tests on a series of multi-layered plates with various lay-ups show that the observations based on acoustic emission detection correlated well with data from other complementary monitoring methods, such as ultrasonic scanning. The main type of fatigue damage observed was delamination. © 1979.

引用

页码：101 / 109

页数：9

共 11 条

[1] Williams, Reifsnider, Investigation of acoustic emission during fatigue loading of composite specimens, J Composite Mater, 8, pp. 340-355, (1974)
[2] Fuwa, Harris, Bunsell, Acoustic emission during cyclic loading of carbon/fibre-reinforced/plastics, J Phys (D) Appl Phys, 8, pp. 1460-1471, (1975)
[3] Liptai, Acoustic emission from composite materials, Composite Materials Testing and Design (Second Conf), 497, pp. 285-298, (1972)
[4] Speake, Curtis, Characterisation of the fracture processes in cfrp using spectral analysis of the acoustic emissions arising from the application of stress, Proc International Conference on Carbon Fibres, pp. 186-193, (1974)
[5] Mehan, Mullin, Analysis of composite failure mechanisms using acoustic emissions, Journal of Composite Materials, 5, pp. 266-269, (1971)
[6] Guild, Walton, Adams, Short, The application of acoustic emission to fibre-reinforced composite materials, Composites, 7, 3, pp. 173-179, (1976)
[7] Wright, Dynamic behaviour of fibre reinforced plastic beams and plates, PhD Thesis, (1973)
[8] Tretout, Effect of fibre orientation and laminate geometry on the dynamic properties and fatigue resistance of carbon fibre reinforced plastic plates, MSc Thesis, (1978)
[9] Fuwa, Bunsell, Harris, Tensile failure mechanisms in carbon fibre-reinforced plastics, J Mater Sci, 10, pp. 2062-2070, (1975)
[10] Balderston, The broad range detection of incipient failure using the acoustic emission phenomena, Acoustic Emission ASTM STP, 505, pp. 298-304, (1972)

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