IMECH-IR  > 非线性力学国家重点实验室
Power-law characteristics of damage and failure of ceramic coating systems under three-point bending
Liang LH(梁立红); Li XN; Liu HY; Wang YB; Wei YG(魏悦广); Liang, LH
Source PublicationSURFACE & COATINGS TECHNOLOGY
2016-01-15
Volume285Pages:113-119
ISSN0257-8972
AbstractDamage and failure of ceramic coatings bonded on alloy substrates was studied by observing crack evolution in the coating systems under in situ three-point bending tests with corresponding load-displacement curves. A damage and catastrophic failure model on the ceramic coatings was proposed based on our experimental results and the Taylor expansion of the controlling variable. The results indicate that the damage increases with increasing stress and obeys the power-law characteristics with the power exponent of 0.5, and the damage is 1 as the stress reaches the critical point corresponding to the failure of the coating systems. The damage rate increases rapidly when the stress is near the failure point and shows a power law singularity of -0.5. The experimental results of thin, thick, nanostructured, and conventional micrometer-scale microstructured coatings are all in agreement with the predictions based on the model. (C) 2015 Elsevier B.V. All rights reserved.
DOI10.1016/j.surfcoat.2015.11.044
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Indexed BySCI ; EI
Language英语
WOS IDWOS:000369200600012
WOS KeywordSMOOTHED PARTICLE HYDRODYNAMICS ; FLUID-STRUCTURE INTERACTION ; SIMULATION
WOS Research AreaMaterials Science ; Physics
WOS SubjectMaterials Science, Coatings & Films ; Physics, Applied
Funding OrganizationThis work was supported by the National Basic Research Programs of China (No. 2012CB937500), the NSFC grants of China (Nos. 11372318, 11023001,11432014, and 91216108), and the CAS/SAFEA International Partnership Program for Creative Research Teams.
DepartmentLNM新型材料及结构的多尺度力学
Classification二类
RankingTrue
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Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/58682
Collection非线性力学国家重点实验室
Corresponding AuthorLiang, LH
Recommended Citation
GB/T 7714
Liang LH,Li XN,Liu HY,et al. Power-law characteristics of damage and failure of ceramic coating systems under three-point bending[J]. SURFACE & COATINGS TECHNOLOGY,2016,285:113-119.
APA Liang LH,Li XN,Liu HY,Wang YB,Wei YG,&Liang, LH.(2016).Power-law characteristics of damage and failure of ceramic coating systems under three-point bending.SURFACE & COATINGS TECHNOLOGY,285,113-119.
MLA Liang LH,et al."Power-law characteristics of damage and failure of ceramic coating systems under three-point bending".SURFACE & COATINGS TECHNOLOGY 285(2016):113-119.
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