Modifying the model data (model size) from an existing input file

[abaqusian]

Hi all,

I have an input file of a simulation run in abaqus. I desperately ,wanted to know how to change the size (dimension) of the model through modifying just the already existing input file rather than using the GUI again for creating a model of different size.

Kindly correct if I am wrong. From the existing input file, the first node values and the last node values gives the overall dimension (size) of the existing model . But, I wanted to change the size of the model and again run the simulation. My existing model has around 1350 nodes.

 

[IceBreakerSours]

You did not mention what exactly you want to do. So, let's say you want to "blow up" the model 10 times. Open the INP, import the nodal coordinate definition part in to EXCEL, multiply every coordinate by 10. Do the appropriate formatting again, copy and paste it back in to the INP. The resulting model will be 10 times as big. You may have to refine the mesh (Mesh -> Edit .. ). You could write a quick MATLAB script to do the same so you won't have to worry about it ever again.

On the other hand, you may want to open the .rpy and/or the .jnl file available in the scratch directory and see if you can find the appropriate Python code. If you are familiar with Python scripting, perhaps, you could regenerate the whole model.

http://www.eng-tips.com/faqs.cfm?fid=376

http://www.eng-tips.com/faqs.cfm?fid=1083

 

[abaqusian]

@IceBreakerSours : Thanks for your reply. I just want to scale down or scale up the model ( say if the size of original model was 100*25*25 dimension and run an analysis with some loading..., I wanted to do for different dimension like 110*30*15 ..., )
I will try what you suggested. If there are some more suggestions for this, kindly post reply.

 

[abaqusian]

@IceBreakerSours : Could you also give some hints on MATLAB script ...,? it would be useful.