Please use this identifier to cite or link to this item: https://ktisis.cut.ac.cy/handle/10488/7780
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dc.contributor.authorConstantinides, Georgiosen
dc.contributor.authorRavichandran, K. S Ren
dc.contributor.authorUlm, Franz Josefen
dc.contributor.otherΚωνσταντινίδης, Γιώργος-
dc.date.accessioned2013-03-08T13:54:28Zen
dc.date.accessioned2013-05-17T05:22:57Z-
dc.date.accessioned2015-12-02T10:13:07Z-
dc.date.available2013-03-08T13:54:28Zen
dc.date.available2013-05-17T05:22:57Z-
dc.date.available2015-12-02T10:13:07Z-
dc.date.issued2006en
dc.identifier.citationMaterials Science and Engineering A,2006, Volume 430, Issue 1-2, Pages 189-202en
dc.identifier.issn0921-5093en
dc.identifier.urihttp://ktisis.cut.ac.cy/handle/10488/7780en
dc.description.abstractSeveral composites comprise material phases that cannot be recapitulated ex situ, including calcium silicate hydrates in cementitous materials, hydroxyapatite in bone, and clay agglomerates in geomaterials. This requirement for in situ synthesis and characterization of chemically complex phases obviates conventional mechanical testing of large specimens representative of these material components. Current advances in experimental micro and nanomechanics have afforded new opportunities to explore and understand the effect of thermochemical environments on the microstructural and mechanical characteristics of naturally occurring material composites. Here, we propose a straightforward application of instrumented indentation to extract the in situ elastic properties of individual components and to image the connectivity among these phases in composites. This approach relies on a large array of nano to microscale contact experiments and the statistical analysis of the resulting data. Provided that the maximum indentation depth is chosen carefully, this method has the potential of extracting elastic properties of the indented phase which are minimally affected by the surrounding medium. An estimate of the limiting indentation depth is provided by asssuming a layered, thin film geometry. The proposed methodology is tested on a "model" composite material, a titanium-titanium monoboride (Ti-TiB) of various volumetric proportions. The elastic properties, volume fractions, and morphological arrangement of the two phases are recovered. These results demonstrate the information required for any micromechanical model that would predict composition-based mechanical performance of a given composite material.en
dc.formatpdfen
dc.language.isoenen
dc.publisherElsevieren
dc.rights© 2006 Elsevier B.V. All rights reserved.en
dc.subjectHydroxyapatiteen
dc.subjectMathematical modelsen
dc.subjectNanostructured materialsen
dc.subjectStatistical methodsen
dc.titleGrid indentation analysis of composite microstructure and mechanics: principles and validationen
dc.typeArticleen
dc.affiliationMassachusetts Institute of Technologyen
dc.identifier.doihttp://dx.doi.org/10.1016/j.msea.2006.05.125en
dc.dept.handle123456789/54en
item.grantfulltextnone-
item.openairetypearticle-
item.openairecristypehttp://purl.org/coar/resource_type/c_6501-
item.languageiso639-1en-
item.cerifentitytypePublications-
item.fulltextNo Fulltext-
crisitem.author.deptDepartment of Mechanical Engineering and Materials Science and Engineering-
crisitem.author.facultyFaculty of Engineering and Technology-
crisitem.author.orcid0000-0003-1979-5176-
crisitem.author.parentorgFaculty of Engineering and Technology-
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