concrete cylinder failure after a certain amount of steps? how ?

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  • Last Post 22 May 2019
Rifaat93 posted this 21 May 2019

hello Ansys experts

I want to ask how can you make a Simulation in which a concrete cylinder is being pressured with a dynamic load (sine function load)
and after a certain period of time because of alot of microcracks  to fail

Because i already tried it and it never breaks it just continues to simulate  

I have to find out áfter how Long will my model break when it is subjected to a dynamic load


Thank you  any advise would help

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jj77 posted this 21 May 2019

This discussion is useful (one needs a material nonlinear analysis of concrete using solid65 elements and concr model with say MISO table describing the stress strain relation in compression):

https://studentcommunity.ansys.com/thread/concrete-nonlinear-model-error/

Rifaat93 posted this 22 May 2019

this is my modelhere is the engineering data for concrete that i have  when i use hashin    but the damage status is always 0 no matter how high the load is

Rifaat93 posted this 22 May 2019

here you can find my model  
and the engineering data i used for the hashin damage criteria   but no matter how hight the load is the damage status is always 0

 

 

Rifaat93 posted this 22 May 2019

Rifaat93 posted this 22 May 2019

i also tried the second one   property degradation  damage status = 1    but it never seems to break  no matter how many steps or no matter how long the simulation is 

Rifaat93 posted this 22 May 2019

i am trying to create a  simulation of a concrete cylinder that is keeps getting pressured with a load with a sine function  and its stiffness keeps gradually getting reduced until it breaks 

jj77 posted this 22 May 2019

Hashin failure criteria and evolution is for composite fibre reinforced plastic (frp) laminate materials not for concrete. As we said search for solid65 and concrete. See also videos on YouTube on how to model cracking crushing in concrete. This post is very good also: https://studentcommunity.ansys.com/thread/rc-beam-error/.

Please close this post also because you have a few similar one https://m.

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