Software for blow molding simulation [Archive] - PolymerFEM Forums

View Full Version : Software for blow molding simulation

mikhaluk

2008-01-02, 17:51

Dear all,

I'm to start doing FE simulation of the blow molding process and not sure what software to choose. I've analysed several sources and found that there can be three possible approcahes to choose:
- "flow-based" codes like POLYFLOW;
- explicit codes like LS-DYNA or ABAQUS;
- special software like B-SIM.

I have got experience of working in LS-DYNA, so I would prefer this software, but I doubt what material model to choose there.
As to B-SIM, I'm not sure about accuracy as this code is not well-known fro me.

Could you please recommend which software to choose.

Many thanks in advance.

Dmitriy

Jorgen

2008-01-03, 16:18

Good question! Unfortunately I probably do not have the answer.

I am aware of the different software packages that you mentioned, but I have not used POLYFLOW (http://www.fluent.com/software/polyflow/index.htm),or B-SIM (http://www.t-sim.com/www/BSIM.html).

Depending on your application you might be able to use LS-DYNA. You can always try that first. If that does not work due to too large element distortions, then you can try B-SIM which is (I believe) less expensive than POLYFLOW. My understanding is that POLYFLOW is more advanced than B-SIM.

- Jorgen

mikhaluk

2008-01-03, 16:27

Dear Dr. Bergstrom, thank you very much for your answer. Ok, I'll start with LS-DYNA then. What I need to do is simulation of PET or HDPE bottle blow molding. Could you please advice which material model should I choose? I want to start with already implemented materials, not with user material.

Dmitriy

Jorgen

2008-01-03, 20:50

I would think that the first model to try is a linear viscoelastic model with appropriate temperature dependence.

- Jorgen

mikhaluk

2008-01-04, 06:47

Thank you!

Dmitriy

stein

2008-05-29, 16:48

Hi mikhaluk,

I am wondering if you have to use triangular element and very fine mesh to model the molding process, right? The example within LS-DYNA was using quard element. How is your opinion and experience by now?

Any hints are appreciated.

stein

Dear all,

I'm to start doing FE simulation of the blow molding process and not sure what software to choose. I've analysed several sources and found that there can be three possible approcahes to choose:
- "flow-based" codes like POLYFLOW;
- explicit codes like LS-DYNA or ABAQUS;
- special software like B-SIM.

I have got experience of working in LS-DYNA, so I would prefer this software, but I doubt what material model to choose there.
As to B-SIM, I'm not sure about accuracy as this code is not well-known fro me.

Could you please recommend which software to choose.

Many thanks in advance.

Dmitriy

mikhaluk

2008-05-30, 02:12

fshi010

2008-09-11, 00:39

Hi stein,

My experience by now is B-SIM only. I tried this software and it was "love from the first sight" :) Indeed, B-SIM is ideally suitable for blow molding simulation, so I didn't even try LS-DYNA for that.

hi, mikhaluk,

I am also interested in the simulation of ISBM of PET bottle. I know B-sim is designed specially for blow molding nd easy to use, but whtether its output is consistent with the pratical results, such as the thickness profile.

Thanks in advance.

mikhaluk

2008-09-11, 01:56

fshi010

2008-09-22, 20:01

hi fshi010,

Unfortunately I didn't have experimental data to compare my simulation with.
With B-SIM I only tried its capabilities and liked interface and easiness of use.
By the way here (http://www.eng.fea.ru/AVIGallery_ANSYS-LS-DYNA-pepsi-bottle-buckling_50.html) you can find some animation of pepsi bottle blow molding. This is what I tried simulating just for fun.

Hi, mikhluk,

thanks for your inforamtion. I find that there is only one material constitutive relation, KBKZ. I am wondering whether it is the most suitable for PET ISBM bottle.