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TitleNumerical simulation of three-point bending tests : two distinct approaches
Author(s)Cunha, Vitor M. C. F.
Barros, Joaquim A. O.
Sena-Cruz, José
Tensile tests
Numerical modelling
Indirect tensile tests
Fibre reinforced composites
Issue date2012
PublisherUniversidade do Minho
Abstract(s)In this work are presented and discussed the numerical simulations carried out for indirect tensile tests of steel fibre reinforced self-compacting concrete specimens. The post-cracking behaviour was modelled with two distinct approaches. Within the scope of the first one, the s-w relationships were obtained by an inverse analysis procedure up to distinct ultimate crack widths. The other approach consisted on modelling the behaviour of the composite based upon the micro-mechanical behaviour of the fibres. For this purpose the composite was modelled as two-phase material under the FEM basis, with an unreinforced concrete matrix phase (paste + aggregates) and a fibre phase. The fibre phase comprises information about fibre density and orientation depending on where and how the material is applied.
Appears in Collections:ISISE - Comunicações a Conferências Internacionais

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