Digital image correlation approach to cracking and decohesion in a brittle coating/ductile substrate system

By using a digital image correlation technique, the full/local field strain in a brittle coating/ductile substrate system during tension has been successfully monitored. One of the most important experimental results indicates that the distribution of interfacial shear stress in the segmented coatin...

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Main Authors: Wu, D.J., Mao, W.G., Zhou, Y.C., Lu, Chungsheng
Format: Journal Article
Published: Elsevier BV North-Holland 2011
Subjects:
Online Access:http://hdl.handle.net/20.500.11937/39280
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author Wu, D.J.
Mao, W.G.
Zhou, Y.C.
Lu, Chungsheng
author_facet Wu, D.J.
Mao, W.G.
Zhou, Y.C.
Lu, Chungsheng
author_sort Wu, D.J.
building Curtin Institutional Repository
collection Online Access
description By using a digital image correlation technique, the full/local field strain in a brittle coating/ductile substrate system during tension has been successfully monitored. One of the most important experimental results indicates that the distribution of interfacial shear stress in the segmented coating is antisymmetric about the center, which clarifies several controversial assumptions introduced in theoretical models. Two key mechanical properties of thermal barrier coatings, fracture strength in coating and interfacial adhesion strength, were determined as 35.0 ± 4.6 and 14.1 ± 3.2 MPa, respectively, which are consistent with available experimental data.
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format Journal Article
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institution Curtin University Malaysia
institution_category Local University
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publishDate 2011
publisher Elsevier BV North-Holland
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spelling curtin-20.500.11937-392802019-02-19T04:26:26Z Digital image correlation approach to cracking and decohesion in a brittle coating/ductile substrate system Wu, D.J. Mao, W.G. Zhou, Y.C. Lu, Chungsheng Thermal barrier coating Digital image correlation Tensile fracture strength Interfacial shear strength By using a digital image correlation technique, the full/local field strain in a brittle coating/ductile substrate system during tension has been successfully monitored. One of the most important experimental results indicates that the distribution of interfacial shear stress in the segmented coating is antisymmetric about the center, which clarifies several controversial assumptions introduced in theoretical models. Two key mechanical properties of thermal barrier coatings, fracture strength in coating and interfacial adhesion strength, were determined as 35.0 ± 4.6 and 14.1 ± 3.2 MPa, respectively, which are consistent with available experimental data. 2011 Journal Article http://hdl.handle.net/20.500.11937/39280 10.1016/j.apsusc.2011.01.119 Elsevier BV North-Holland fulltext
spellingShingle Thermal barrier coating
Digital image correlation
Tensile fracture strength
Interfacial shear strength
Wu, D.J.
Mao, W.G.
Zhou, Y.C.
Lu, Chungsheng
Digital image correlation approach to cracking and decohesion in a brittle coating/ductile substrate system
title Digital image correlation approach to cracking and decohesion in a brittle coating/ductile substrate system
title_full Digital image correlation approach to cracking and decohesion in a brittle coating/ductile substrate system
title_fullStr Digital image correlation approach to cracking and decohesion in a brittle coating/ductile substrate system
title_full_unstemmed Digital image correlation approach to cracking and decohesion in a brittle coating/ductile substrate system
title_short Digital image correlation approach to cracking and decohesion in a brittle coating/ductile substrate system
title_sort digital image correlation approach to cracking and decohesion in a brittle coating/ductile substrate system
topic Thermal barrier coating
Digital image correlation
Tensile fracture strength
Interfacial shear strength
url http://hdl.handle.net/20.500.11937/39280