Failure Prediction in Ceramic Composites Using Acoustic Emission and Digital Image Correlation

被引：5
作者：
Whitlow, Travis [1 ]
Jones, Eric [2 ]
Przybyla, Craig [2 ]
机构：
[1] Univ Dayton, Res Inst, Dayton, OH 45469 USA
[2] Air Force Res Lab, Wright Patterson AFB, OH USA
来源：
42ND ANNUAL REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION: INCORPORATING THE 6TH EUROPEAN-AMERICAN WORKSHOP ON RELIABILITY OF NDE | 2016年 / 1706卷
关键词：
CRACKING;
D O I：
10.1063/1.4940454
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The objective of the work performed here was to develop a methodology for linking in-situ detection of localized matrix cracking to the final failure location in continuous fiber reinforced CMCs. First, the initiation and growth of matrix cracking are measured and triangulated via acoustic emission (AE) detection. High amplitude events at relatively low static loads can be associated with initiation of large matrix cracks. When there is a localization of high amplitude events, a measurable effect on the strain field can be observed. Full field surface strain measurements were obtained using digital image correlation (DIC). An analysis using the combination of the AE and DIC data was able to predict the final failure location.
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页数：9
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