Investigation of debonding processes in particle-filled polymer materials by acoustic emission .2. Acoustic emission amplitude and energy release by debonding

被引:15
作者
Kraus, R
Wilke, W
Zhuk, A
Luzinov, I
Minko, S
Voronov, A
机构
[1] HARVARD UNIV,DIV APPL SCI,CAMBRIDGE,ENGLAND
[2] UKRAINIAN ACAD SCI,DEPT PHYS CHEM INST,LVOV,UKRAINE
关键词
D O I
10.1023/A:1018636309855
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
A theoretical description of the debonding process is presented by using Griffith's criterion of rupture, that is applied to the balance of free energy during the debonding of a spherical filler particle from the polymer matrix. Debonding processes in model composites prepared from epoxy and polyethylene matrix filled with glass beads of various sizes have been investigated by acoustic emission analysis. The amplitude distribution for all AE events at the debonding stress was calculated and fitted by a Weibull distribution function. By comparing the results of debonding stress with the measured amplitudes, the influence of the different filler coatings on the energy balance of debonding can be discussed on the basis of the Griffith theory.
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页码:4405 / 4410
页数:6
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