Monitoring damage evolution of ceramic matrix composites during tensile tests using electrical resistivity: Crack density-based electromechanical model

被引：17

作者：

Goulmy, J. P. ^{[1
,2
]}

Camus, G. ^{[1
,2
]}

Rebillat, F. ^{[1
,2
]}

机构：

[1] Univ Bordeaux, Lab Composites Thermostruct, 3 Allee Boetie, F-33600 Pessac, France

[2] CNRS SAFRAN CEA, 3 Allee Boetie, F-33600 Pessac, France

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2021年 / 41卷 / 01期

关键词：

Ceramic matrix composites (CMCs); Electrical resistivity; Acoustic emission spectra; Tensile tests; Damage monitoring; ACOUSTIC-EMISSION; RESISTANCE; GROWTH; FAILURE; DESIGN;

D O I：

10.1016/j.jeurceramsoc.2020.07.065

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

In order to further develop and understand the data provided by electrical resistance measurements, three ceramic matrix composites (CMCs) were characterized in tension. The observed changes of the electrical resistance were compared to the acoustic emission spectra, another commonly used damage monitoring method, as well as the classical interposed unloading/reloading cycles. A model was then proposed in order to predict the evolution of the resistance as a function of the damage state of the three composites. The proposed model provides accurate results for the three materials which, although they all belong to the CMC family, display different mechanical and physical behaviors.

引用

页码：121 / 129

页数：9

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