About 3D Solid Modelling Calculation Assumptions

[umut.akparlar]

Hello,

I need to model 3D solid object and had no problem with modelling and meshing it but when I select concrete material I am not sure that material and related calculation also assumes 3D solid has reinforcement in it. Because without reinforcement the modelled 3D solid concrete object won't be ductile like a RC frame and starting to crack so we will have instability in the end.

Is there a source that we can learn the 3D solid modelling and analysis assumptions? 

Thanks 

[Rafacascudo]

there are no nonlinear materials in RSA ,so material nehavior is elastic

[umut.akparlar]

@Rafacascudo my point is not to use non linear material. I mean when we select material as concrete C30/37 for solid objects, RSA presumes the concrete material will be calculated with the min. required reinforcement in mind? Because there is not much use for me to calculate/analyze unreinforced concrete by itself. If I design a building without any reinforcement it will most likely to fail due to tension. 

So if we design a concrete beam by using 3D solid with concrete material, it will deflect like a regular RC beam right? 

[Rafacascudo · Accepted solution]

no , it will deflect as it was a pure concrete beam with no steel bars inside it . Like i said before , it will pick "E" material property(modulus of elasticity) you apply to it and calculate elastic deflection accordind to it. I

The modulus of elasticity of concrete is often calculated as a function of the compressive strength. Nothing related to minimum reinforcement