Multiscale analysis of multiple damage mechanisms coupled with inelastic behavior of composite materials

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dc.authoridVoyiadjis, George/0000-0002-7965-6592
dc.contributor.authorVoyiadjis, GZ
dc.contributor.authorDeliktas, B
dc.contributor.authorAifantis, EC
dc.date.accessioned2024-09-18T21:05:05Z
dc.date.available2024-09-18T21:05:05Z
dc.date.issued2001
dc.departmentHatay Mustafa Kemal Üniversitesien_US
dc.description.abstractThermodynamically consistent constitutive equations are derived here in order to investigate size effects on the strength of composite, strain, and damage localization effects on the macroscopic response of the composite, and statistical inhomogeneity of the evolution-related damage variables associated with the representative volume element. This approach is based on a gradient-dependent theory of plasticity and damage over multiple scales that incorporates mesoscale interstate variables and their higher order gradients at both the macro- and mesoscales. This theory provides the bridging of length scales. The interaction of the length scales is a paramount factor in understanding and controlling material defects such as dislocation, voids, and cracks at the mesoscale and interpreting them at the macroscale. The behavior of these defects is captured not only individually, but also the interaction between them and their ability to create spatiotemporal patterns under different loading conditions. The proposed work introduces gradients at both the meso- and macroscales. The combined coupled concept of introducing gradients at the mesoscale and the macroscale enables one to address two issues simultaneously. The mesoscale gradients allow one to address issues such as lack of statistical homogeneous state variables at the macroscale level such as debonding of fibers in composite materials, cracks, voids, and so forth. On the other hand, the macroscale gradients allow one to address nonlocal behavior of materials and interpret the collective behavior of defects such as dislocations and cracks. The capability of the proposed model is to properly simulate the size-dependent behavior of the materials together with the localization problem. Consequently, the boundary-value problem of a standard continuum model remains well-posed even in the softening regime. The enhanced gradient continuum results in additional partial differential equations that are satisfied in a weak form. Additional nodal degrees of freedom are introduced that leads to a modified finite-element formulation. The governing equations can be linearized consistently and solved within the incremental iterative Newton-Raphson solution procedure.en_US
dc.identifier.doi10.1061/(ASCE)0733-9399(2001)127:7(636)
dc.identifier.endpage645en_US
dc.identifier.issn0733-9399
dc.identifier.issn1943-7889
dc.identifier.issue7en_US
dc.identifier.scopus2-s2.0-0035396809en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage636en_US
dc.identifier.urihttps://doi.org/10.1061/(ASCE)0733-9399(2001)127:7(636)
dc.identifier.urihttps://hdl.handle.net/20.500.12483/13357
dc.identifier.volume127en_US
dc.identifier.wosWOS:000169318600002en_US
dc.identifier.wosqualityN/Aen_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherAsce-Amer Soc Civil Engineersen_US
dc.relation.ispartofJournal of Engineering Mechanicsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectGradient-Enhanced Damageen_US
dc.subjectModelen_US
dc.titleMultiscale analysis of multiple damage mechanisms coupled with inelastic behavior of composite materialsen_US
dc.typeArticleen_US

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