Orthotropic elastic properties for UHPFRC based on two-phase model homogenization

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dc.contributor.authorRibeiro P.O.
dc.contributor.authorCarrazedo R.
dc.contributor.authorOliveira C.O.
dc.contributor.authorKrahl P.A.
dc.date.accessioned2025-04-01T06:22:21Z
dc.date.available2025-04-01T06:22:21Z
dc.date.issued2024
dc.description.abstract© 2024 Elsevier LtdUltra-high-performance fiber reinforced concrete (UHPFRC) is a durable composite with ductile behavior. It has been investigated for application on structures submitted to complex stress states as bridges and wind towers (on-shore and off-shore). During casting and compaction, fiber alignment may occur so that UHPFRC has a mechanical response that is dependent on the direction of loading. Consequently, orthotropic elastic properties are necessary for any stress-strain analysis to take these effects into account. Although experimental analysis is always welcome to evaluate the elastic properties of materials, significant challenges would appear to evaluate the orthotropic response experimentally. On the other hand, three-dimensional finite element models may be used to incorporate short fibers individually (one by one) into the model to gain sensitivity to their influence in accordance with orientation patterns that may occur in real situations. Within the elastic regime, this type of simulation is not computationally costly and may be developed in standard personal computers. Therefore, the present study applies numerical homogenization to propose equations for estimating the orthotropic properties of UHPFRC. Fibers are generated covering all orientations (0< ηθ <1). Relations between fiber efficiency and ηθ are established to determine the orthotropic matrix based on the phase properties (matrix and fibers) and fiber content.
dc.description.volume440
dc.identifier.doi10.1016/j.conbuildmat.2024.137304
dc.identifier.issnNone
dc.identifier.urihttps://dspace.mackenzie.br/handle/10899/40424
dc.relation.ispartofConstruction and Building Materials
dc.rightsAcesso Restrito
dc.subject.otherlanguageBuckling
dc.subject.otherlanguageFEM
dc.subject.otherlanguageHomogenization
dc.subject.otherlanguageOrthotropy
dc.subject.otherlanguageUHPFRC
dc.titleOrthotropic elastic properties for UHPFRC based on two-phase model homogenization
dc.typeArtigo
local.scopus.citations1
local.scopus.eid2-s2.0-85198729153
local.scopus.subjectBridge towers
local.scopus.subjectComplex stress state
local.scopus.subjectDuctile behavior
local.scopus.subjectHigh-performance fiber reinforced concretes
local.scopus.subjectHomogenization
local.scopus.subjectOrthotropic elastic properties
local.scopus.subjectOrthotropy
local.scopus.subjectTwo-phase model
local.scopus.subjectUltra high performance
local.scopus.subjectUltra-high-performance fiber reinforced concrete
local.scopus.updated2025-04-01
local.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85198729153&origin=inward
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