| Download | - View accepted manuscript: Finite element modelling of the coupled pressure volume phenomena during inflation (PDF, 233 KiB)
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| Author | Search for: Benrabah, Z.1; Search for: Debergue, P.1; Search for: DiRaddo, R.1 |
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| Affiliation | - National Research Council of Canada. NRC Industrial Materials Institute
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| Format | Text, Article |
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| Conference | Polymer Processing Society (PPS) Regional Meeting 2005, August 14-17, 2005, Quebec City, Quebec, Canada |
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| Abstract | In industrial blow molding machines, the inflation pressure is only controlled in the upstream blowing device and not inside the cavity. However, observations show that the inside measured pressure is considerably lower than the nominal one captured in the upstream air feeding system. Several recent investigations show that if the volume of the enclosed gas changes significantly during the inflation stage, then the assumption that the internal pressure is know and constant can be incorrect. In this case, the internal pressure becomes a function of the unknown cavity volume. This paper presents a thermodynamical model used for predicting the pressure evolution in molded cavities during the inflation process. A brief recall of the FEM formulation and implementation is also presented. Experimental validation of the numerical approach is performed on a one-stage stretch blow-molding machine. |
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| Publication date | 2005-01-01 |
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| In | |
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| Language | English |
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| Peer reviewed | No |
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| NRC number | NRCC 54312 |
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| NPARC number | 18399000 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 6b05b973-20e7-45ca-b8c7-57a81531dc3a |
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| Record created | 2011-08-17 |
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| Record modified | 2020-04-07 |
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