Thermomechanical Optimization and Comparison of a Low Thermal Inertia Mold with Rectangular Heating Channels and a Conventional Mold
Molds used to manufacture high-performance composites currently do not meet the demand of manufacturers in terms of production rate due to massive mold designs, using straight-through heating channels, that are not thermally reactive. In this paper, using a thermal finite element model, the thermome...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2019-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2019/3261972 |
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| author | Jean Collomb Pascale Balland Pascal Francescato Yves Gardet David Leh Philippe Saffré |
| author_facet | Jean Collomb Pascale Balland Pascal Francescato Yves Gardet David Leh Philippe Saffré |
| author_sort | Jean Collomb |
| collection | DOAJ |
| description | Molds used to manufacture high-performance composites currently do not meet the demand of manufacturers in terms of production rate due to massive mold designs, using straight-through heating channels, that are not thermally reactive. In this paper, using a thermal finite element model, the thermomechanical responses of an existing massive and conventional mold is observed; then, thermomechanical optimizations are carried out on a circular heating channel mold and on a rectangular heating channel mold. The objective of this paper is two-fold: (i) confirm the need to change design rules for molds considering technological aspects (e.g., pressure drop and fluid nature) and (ii) validate the advantages of an innovative concept of a low thermal inertia mold with rectangular heating channels. Results of this study confirm the need to reduce the mass of structures to increase heating rates and the importance of taking into account technological data (heat transfer fluid, pressure drop) to ensure the optimal convective exchange. After optimization, a decrease greater than 75% in heating time for the circular channel model and up to 88% for the rectangular channel model was observed. Moreover, the antagonistic nature between heating rate and thermal homogeneity of the molding surface and between heating rate and mechanical strength is confirmed. |
| format | Article |
| id | doaj-art-e2b56504bf0e4c9dae37491b0c082732 |
| institution | DOAJ |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-e2b56504bf0e4c9dae37491b0c0827322025-08-20T03:21:07ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422019-01-01201910.1155/2019/32619723261972Thermomechanical Optimization and Comparison of a Low Thermal Inertia Mold with Rectangular Heating Channels and a Conventional MoldJean Collomb0Pascale Balland1Pascal Francescato2Yves Gardet3David Leh4Philippe Saffré5Univ. Savoie Mont Blanc, SYMME, 74000 Annecy, FranceUniv. Savoie Mont Blanc, SYMME, 74000 Annecy, FranceUniv. Savoie Mont Blanc, SYMME, 74000 Annecy, FranceCT1 Company, Compose Group, 8 bis avenue de la Gare, 01100 Bellignat, FranceCT1 Company, Compose Group, 8 bis avenue de la Gare, 01100 Bellignat, FranceUniv. Savoie Mont Blanc, SYMME, 74000 Annecy, FranceMolds used to manufacture high-performance composites currently do not meet the demand of manufacturers in terms of production rate due to massive mold designs, using straight-through heating channels, that are not thermally reactive. In this paper, using a thermal finite element model, the thermomechanical responses of an existing massive and conventional mold is observed; then, thermomechanical optimizations are carried out on a circular heating channel mold and on a rectangular heating channel mold. The objective of this paper is two-fold: (i) confirm the need to change design rules for molds considering technological aspects (e.g., pressure drop and fluid nature) and (ii) validate the advantages of an innovative concept of a low thermal inertia mold with rectangular heating channels. Results of this study confirm the need to reduce the mass of structures to increase heating rates and the importance of taking into account technological data (heat transfer fluid, pressure drop) to ensure the optimal convective exchange. After optimization, a decrease greater than 75% in heating time for the circular channel model and up to 88% for the rectangular channel model was observed. Moreover, the antagonistic nature between heating rate and thermal homogeneity of the molding surface and between heating rate and mechanical strength is confirmed.http://dx.doi.org/10.1155/2019/3261972 |
| spellingShingle | Jean Collomb Pascale Balland Pascal Francescato Yves Gardet David Leh Philippe Saffré Thermomechanical Optimization and Comparison of a Low Thermal Inertia Mold with Rectangular Heating Channels and a Conventional Mold Advances in Materials Science and Engineering |
| title | Thermomechanical Optimization and Comparison of a Low Thermal Inertia Mold with Rectangular Heating Channels and a Conventional Mold |
| title_full | Thermomechanical Optimization and Comparison of a Low Thermal Inertia Mold with Rectangular Heating Channels and a Conventional Mold |
| title_fullStr | Thermomechanical Optimization and Comparison of a Low Thermal Inertia Mold with Rectangular Heating Channels and a Conventional Mold |
| title_full_unstemmed | Thermomechanical Optimization and Comparison of a Low Thermal Inertia Mold with Rectangular Heating Channels and a Conventional Mold |
| title_short | Thermomechanical Optimization and Comparison of a Low Thermal Inertia Mold with Rectangular Heating Channels and a Conventional Mold |
| title_sort | thermomechanical optimization and comparison of a low thermal inertia mold with rectangular heating channels and a conventional mold |
| url | http://dx.doi.org/10.1155/2019/3261972 |
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