Journal
NDT & E INTERNATIONAL
Volume 34, Issue 8, Pages 531-536Publisher
ELSEVIER SCI LTD
DOI: 10.1016/S0963-8695(01)00013-5
Keywords
acoustic emission; jute; impact performance; mechanical tests
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The present study aims to characterise damage due to low velocity impact on jute fibre reinforced polyester composites. To attain this goal, a number of post-impact mechanical tests have been carried out, including tensile tests, three-point bending and indentation, using either a staircase or a continuous loading programme. On all these tests acoustic emission activity (AE) was monitored. The results, compared with damage observed under an optical microscope, show that A-E is able to perform a reliable measurement of the level of damage also, on a natural fibre reinforced laminate. The main limitations of this study are owing to the rather low ultimate stress of the material and to the need to apply a loading to evaluate the damage produced by the impact event. (C) 2001 Elsevier Science Ltd. All rights reserved.
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