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concrete damage plasticity

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Damage plasticity model for concrete failure CDPM2

Those involved in the modelling of the failure of plain/reinforced concrete using damage and plasticity might be interested in our webpage

http://petergrassl.com/Research/DamagePlasticity/CDPMLSDYNA/index.html

which we have created to support our concrete damage plasticity model CDPM(2) in LS-DYNA. You can find there a number of example input files, reports and our implementation of the model in the form of a user subroutine.

 

How obtain tension strain concrete(σt0) in damaged plasticity model in ABAQUS?

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How obtain tension strain concrete(σt0) in damaged plasticity model in ABAQUS?

hello engineers

i need help about concrete damaged plasticity

fo example :

if Compressive stress (Fu)= 51.2 MPa

and tension stress (σ t)=0.3 x 51.2^(2/3)=4.136

1)why (σ t) is 2.36 in picture(uploaded)?

2)what is tension strain ? and how? i cant understand.

i cant obtain εt = total tensile strain.

how obtain εcr ?

please help

 

Abaqus explicit-Unexpected output results

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Hello everyone,

 

I made simple cantilever model in Abaqus/Explicit. For concrete I have used Concrete damaged plasticity model and for reinforcement I have tried two models (one with Truss and second with Beam elements). I have assigned displacement as BC (Smooth amplitude) in Reference Point at the end of the beam, and I have coupled RP with the end of the beam. For concrete beam I have used C3D8R elements.

For history output I have requested Reaction force in RP and energies for whole model.

But results I am getting aren't expected.

How to calculate total load in a displacement control analysis in abaqus

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Hi,

I'm modeling a pull-out test for FRP debonding. I,m using displacement control and used amplitude to define displacement control boundary condition for example

amp*

0,0

0.15,1.0

 

I used concrete damage plasticity model to define tensile damage of concrete and done abaqus explicit analysis with time period same as for amplitud,  i.e.,0.15

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