I have modelled Double punch test (Indirect tension test) in abaqus software.
Concrete cylinder-150X150mm
Steel cylinder punches-38.1mm dia and 25.4mm height
Material properties-CDP model for concrete
Steel-mass density,elastic and plastic properties.
Static general step with applying load from 5kn to 110kn monotonically i.e,by defining amplitude
0 0.045
1 1
There are two problems I am facing:-
1.Concrete is a brittle material but after analysis completes cracks are not depicted it shows more plastic character i.e displacement in U2 direction is 30mm.
2.After analysis maximum stress is 60Mpa but concrete grade is 20Mpa.There is a large difference in stress values.
Please tell me how to rectify these two problems??
Concrete cylinder-150X150mm
Steel cylinder punches-38.1mm dia and 25.4mm height
Material properties-CDP model for concrete
Steel-mass density,elastic and plastic properties.
Static general step with applying load from 5kn to 110kn monotonically i.e,by defining amplitude
0 0.045
1 1
There are two problems I am facing:-
1.Concrete is a brittle material but after analysis completes cracks are not depicted it shows more plastic character i.e displacement in U2 direction is 30mm.
2.After analysis maximum stress is 60Mpa but concrete grade is 20Mpa.There is a large difference in stress values.
Please tell me how to rectify these two problems??
