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Problems with gravity loads

Submitted by zeke2282 on
ABAQUS
tank
gravity

Hello to all,

 I`m carring out a simulation with abaqus of an underground storage tank. I modelled the tank using shell elements (conventional) and for the soil I used solid element. I want the stress on the top of the tank caused by the efect of the soil that is on the top.

The applied load is Gravity in the y-direction (-10 m/s2) to the whole model and I`m using abaqus/standard. I defined the contact between the tank and the soil.

The problem is that the job end saying "too many attemps for this increment". I used different increments but all of them with the same result.

What can I do or what am I missing ?

 

Thanks to all!

 

Ezequiel

 

Anoop.Retheesh

Hi Ezequiel,

The error "too many attemps for this increment" is caused by some kind of non-linearity. Since you have contacts between the soil and the tank, I suspect this is causing the problem. Just tie the contact surfaces and try to simulate the problem again. If it is working, then we can confirm the problem is with the contact.

Thanks,

Anoop

Mon, 10/18/2010 - 10:12 Permalink