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dc.contributor.authorJavili, A.en_US
dc.contributor.authorSteinmann, P.en_US
dc.contributor.authorMosler, J.en_US
dc.date.accessioned2018-04-12T11:12:52Z
dc.date.available2018-04-12T11:12:52Z
dc.date.issued2017en_US
dc.identifier.issn0045-7825
dc.identifier.urihttp://hdl.handle.net/11693/37417en_US
dc.description.abstractThe objective of this contribution is to establish a micro-to-macro transition framework to study the behavior of heterogeneous materials whereby the influence of interfaces at the microscale is taken into account. The term “interface” refers to a zero-thickness model that represents the finite thickness “interphase” between the constituents of the micro-structure. For geometrically equivalent samples, due to increasing area-to-volume ratio with decreasing size, interfaces demonstrate a more pronounced effect on the material response at small scales. A remarkable outcome is that including interfaces introduces a length-scale and our interface-enhanced computational homogenization captures a size effect in the material response even if linear prolongation conditions are considered. Furthermore, the interface model in this contribution is general imperfect in the sense that it allows for both jumps of the deformation as well as for the traction across the interface. Both cohesive zone model and interface elasticity theory can be derived as two limit cases of this general model. We establish a consistent computational homogenization scheme accounting for general imperfect interfaces. Suitable boundary conditions to guarantee meaningful averages are derived. Clearly, this general framework reduces to classical computational homogenization if the effect of interfaces is ignored. Finally, the proposed theory is elucidated via a series of numerical examples. © 2016 Elsevier B.V.en_US
dc.language.isoEnglishen_US
dc.source.titleComputer Methods in Applied Mechanics and Engineeringen_US
dc.relation.isversionofhttp://dx.doi.org/10.1016/j.cma.2016.12.025en_US
dc.subjectCohesive zoneen_US
dc.subjectComputational homogenizationen_US
dc.subjectGeneral imperfect interfaceen_US
dc.subjectInterface elasticityen_US
dc.subjectNano-materialsen_US
dc.subjectSize effecten_US
dc.titleMicro-to-macro transition accounting for general imperfect interfacesen_US
dc.typeArticleen_US
dc.departmentDepartment of Mechanical Engineeringen_US
dc.citation.spage274en_US
dc.citation.epage317en_US
dc.citation.volumeNumber317en_US
dc.identifier.doi10.1016/j.cma.2016.12.025en_US
dc.publisherElsevier B.V.en_US
dc.embargo.release2019-04-15en_US


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