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Need help concering Advanced non linear explicit model

Builder
Builder

Hello everyone,

 

I want to perform non linear explicit analysis on porous structure.

I already tried but I am geting fatal error, might be due to unfilled material property.

 

Does somebody have experience in such modelling and what are the parameter need to be define in such analysis.

Looking forward to hear from someone soon.

 

Cheers

 

16 REPLIES

Re: Need help concering Advanced non linear explicit model

Siemens Phenom Siemens Phenom
Siemens Phenom

What type of material model are you attempting to use?

Best Regards,
Chip Fricke
Principal Applications Engineer - Femap Product Development

Re: Need help concering Advanced non linear explicit model

Builder
Builder

Dear Chip,

 

Thank you very much for the answer.

 

My model is porous 3D isotropic solid and I applied Aluminum 6061 – T6 as a material property.

 

I performed body load and linear, both run successfully. But when I run non linear I am getting fatal error.

Re: Need help concering Advanced non linear explicit model

Siemens Phenom Siemens Phenom
Siemens Phenom

Are you applying the load with a vs. Time function?

 

Please see the following:http://community.plm.automation.siemens.com/t5/Femap-Discussion-Forum/Simple-model-Advanced-Non-Line...

Best Regards,
Chip Fricke
Principal Applications Engineer - Femap Product Development

Re: Need help concering Advanced non linear explicit model

Builder
Builder

I saw this forum today and applied the load with a vs. Time function, however model still getting error.

 

and moreover I don't have contact, I am applying load directly on the upper part of geometry

Re: Need help concering Advanced non linear explicit model

Siemens Phenom Siemens Phenom
Siemens Phenom

When you refer to a 'porous' structure, are you including the pores as voids in the solid?

 

Also, I just noticed you are using the Advanced Nonlinear Explicit solver.  You should not use this for anything except for very short duration, high-speed dynamic impact analysis.  The Explicit solver (SOL701) does not have support for parabolic tetrahedral elements (10-noded) and has other limitations as well.

 

I recommend you use Advanced Nonlinear Static solution (Sol601)

 

 

Best Regards,
Chip Fricke
Principal Applications Engineer - Femap Product Development

Re: Need help concering Advanced non linear explicit model

Builder
Builder

Okay chip, I a, going to run the analysis now with nonlinear static analysis, it will take 5 o 6 hour to finish. afterwards I will let you know the status.

Re: Need help concering Advanced non linear explicit model

Builder
Builder

But chip, I want to know what are the parameter we need to define in material fro non linear static analysis.

 

I guess shear stress and yielding, is there any specific we need to be care.

Re: Need help concering Advanced non linear explicit model

Siemens Phenom Siemens Phenom
Siemens Phenom

The snapshot below shows an example of an aluminum nonlinear material.

 

2016-06-24_10-25-05.jpg

You can refer to the following for an example:

 

http://community.plm.automation.siemens.com/t5/Femap-Knowledge-Base/Sheet-Metal-Forming-with-Femap-a...

Best Regards,
Chip Fricke
Principal Applications Engineer - Femap Product Development

Re: Need help concering Advanced non linear explicit model

Builder
Builder

thank you chip for the useful information, I will go though it and run the model and let you know afterwards on monday.

 

thank you again and have a nice weekened