Hi,
I tried to model a confined stub column using fibre reinforced cementitious composite in ABAQUS. I modelled concrete core as plain concrete with circular cross section(150mm dia & 300mm high). The confining layer was modelled with a total thickness of 8mm on the circumference to the full height with 5mm mesh fibre textile embedded as wire element. CDP model was uswd for both concrete core and confining mortar layer.
After analysis, the longitudinal fibres got stressed due to axial sress, but the fibres in the hoop direction remains unstressed.
Can anyone suggest me a solution?
The results seems like there is no expansion in the hop direction.
...
Shaise K John here is a verified cylinder model using ABAQUS and CDP criteria;
https://numericalarchive.com/shop?olsPage=products%2Ffinite-element-analysis-of-unreinforced-concrete-cylinder-using-abaqus-cdp
You need a constitutive model to interpret the post-cracking behavior of SFRC. This is what ABAQUS will use to get the correct response of the concrete. You can look for Lok and Xiao (1999) or any other constitutive model
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