Multiscale monitoring of interface failure of brittle coating/ductile substrate systems: A non-destructive evaluation method combined digital image correlation with acoustic emission | Zendy

Weiguo Mao | Zendy; Dan Wu | Zendy; Weiliang Yao | Zendy; Minghua Zhou | Zendy; Chunsheng Lu | Zendy

Open Access

Multiscale monitoring of interface failure of brittle coating/ductile substrate systems: A non-destructive evaluation method combined digital image correlation with acoustic emission

Author(s) -

Weiguo Mao,

Dan Wu,

Weiliang Yao,

Minghua Zhou,

Chunsheng Lu

Publication year - 2011

Publication title -

journal of applied physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.699

H-Index - 319

eISSN - 1089-7550

pISSN - 0021-8979

DOI - 10.1063/1.3651378

Subject(s) - digital image correlation , acoustic emission , materials science , brittleness , delamination (geology) , coating , substrate (aquarium) , composite material , bending , toughness , cracking , geology , oceanography , paleontology , subduction , tectonics

In this paper, we proposed a non-destructive evaluation method combined digital image correlation with acoustic emission techniques. The method was used to in situ monitor interface failure and internal damage of brittle coating/ductile substrate systems with different size scales. The results show that there is a good relationship between digital image correlation and acoustic emission signals, which can be applied to judge cracking formation and coating delamination and to determine fracture toughness of a thermal barrier coating system subjected to bending. © 2011 American Institute of Physics.

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