3 Replies Latest reply on Jan 9, 2017 11:00 AM by Bill McEachern

Student trying to analyze a model

Asaf Lavi Jan 9, 2017 8:25 AM

Hello!

I am a student, taking my first steps with this amazing software.

I am working on a project involving a model meant to replace the regular wine cork.

In order to check if my model is efficient, I would like to analyze the model for pressure over time.

How should I simulate the pressure on the part of the cork which goes inside the bottle?

Furthermore, the cork should be made of a material that doesn't have data about its yield strength (PE low density). Should that be a problem?

Thanks

p.s

Adding some pictures of the model.

Re: Student trying to analyze a model

James Riddell Jan 9, 2017 8:49 AM (in response to Asaf Lavi)

You might try a displacement boundary/condition on the proposed surface in the model - probably something very small.
If you expect much deflection then this could easily turn into a non-linear problem. You should probably also consider the friction coefficient of the glass to your 'cork' especially if you are expecting internal pressure.
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Re: Student trying to analyze a model

Siavash Khajehhasani Jan 9, 2017 9:23 AM (in response to Asaf Lavi)

Nonlinear analysis
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Re: Student trying to analyze a model

Bill McEachern Jan 9, 2017 11:00 AM (in response to Asaf Lavi)

The reason cork is used as bottle stopper is because it has a very unique property - the Poisson's ratio is nearly zero. That is to say it doesn't expand (much) when you load it in compression to get it in the bottle neck.
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