Please use this identifier to cite or link to this item: https://ktisis.cut.ac.cy/handle/10488/7762
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dc.contributor.authorConstantinides, Georgiosen
dc.contributor.authorGanneau, F. P.en
dc.contributor.authorUlm, Franz Josefen
dc.contributor.otherΚωνσταντινίδης, Γιώργος-
dc.date.accessioned2013-03-08T13:15:38Zen
dc.date.accessioned2013-05-17T05:22:43Z-
dc.date.accessioned2015-12-02T10:06:21Z-
dc.date.available2013-03-08T13:15:38Zen
dc.date.available2013-05-17T05:22:43Z-
dc.date.available2015-12-02T10:06:21Z-
dc.date.issued2006en
dc.identifier.citationInternational Journal of Solids and Structures,2006, Volume 43, Issue 6,Pages 1727-1745en
dc.identifier.issn0020-7683en
dc.identifier.urihttp://ktisis.cut.ac.cy/handle/10488/7762en
dc.description.abstractWe propose a dual indentation technique for the assessment of the cohesion and friction angle of cohesive-frictional materials of the Mohr-Coulomb type. The technique is based on a computational implementation of the yield design theorems applied to conical indentation tests with different apex angles. The upper bound solutions are found to be very close to flat indentation solutions available for cohesive-frictional materials. On this basis we derive fundamental hardness-to-cohesion solutions in function of the friction angle and the apex angle. By studying the property of these dimensionless relations, we show that the ratio of two hardness measurements obtained from indentation tests with different apex angles, allows one to determine the friction angle. This dual indentation method is applied to Berkovich and Corner Cube indenter assimilated to equivalent cones of different apex angle. The method is validated for a 'model' material, metallic glass, which has recently been identified as a cohesive-frictional materials. The only input to the method are two hardness values which we obtain by microindentation on metallic glass. The outcome are values of the cohesion and friction angle, which are found to be in excellent agreement with reported cohesion and friction angle values of metallic glass obtained by macroscopic triaxial testing and comprehensive finite-element backanalysis of indentation curves.en
dc.formatpdfen
dc.language.isoenen
dc.publisherElsevieren
dc.rights© Elsevier Ltd. All rights reserved.en
dc.subjectHardnessen
dc.subjectFinite element methoden
dc.subjectMetallic glassesen
dc.subjectStrength of materialsen
dc.titleDual-indentation technique for the assessment of strength properties of cohesive-frictional materialsen
dc.typeArticleen
dc.affiliationMassachusetts Institute of Technologyen
dc.identifier.doihttp://dx.doi.org/10.1016/j.ijsolstr.2005.03.035en
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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