Acoustical and Optical Determination of Mechanical Properties of Inorganically-Bound Foundry Core Materials
Inorganically-bound sand cores are used in many light-metal foundries to form cavities in the cast part, which cannot be realised by the mould itself. To enable FEM simulations with core materials, their mechanical properties have to be measured. In this article, we adapt methods to determine the Yo...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-06-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/13/11/2531 |
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| author | Philipp Lechner Georg Fuchs Christoph Hartmann Florian Steinlehner Florian Ettemeyer Wolfram Volk |
| author_facet | Philipp Lechner Georg Fuchs Christoph Hartmann Florian Steinlehner Florian Ettemeyer Wolfram Volk |
| author_sort | Philipp Lechner |
| collection | DOAJ |
| description | Inorganically-bound sand cores are used in many light-metal foundries to form cavities in the cast part, which cannot be realised by the mould itself. To enable FEM simulations with core materials, their mechanical properties have to be measured. In this article, we adapt methods to determine the Young’s and shear modulus, the Poisson ratio and the fracture strain of sand cores. This allows us to fully parametrise an ideal brittle FEM model. We found that the Young’s and shear modulus can be obtained acoustically via the impulse excitation technique. The fracture strain was measured with a high-speed camera and a digital image correlation algorithm. |
| first_indexed | 2024-03-10T19:25:04Z |
| format | Article |
| id | doaj.art-b7a2e08bedd141ce8862c2666326dcf2 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T19:25:04Z |
| publishDate | 2020-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-b7a2e08bedd141ce8862c2666326dcf22023-11-20T02:40:25ZengMDPI AGMaterials1996-19442020-06-011311253110.3390/ma13112531Acoustical and Optical Determination of Mechanical Properties of Inorganically-Bound Foundry Core MaterialsPhilipp Lechner0Georg Fuchs1Christoph Hartmann2Florian Steinlehner3Florian Ettemeyer4Wolfram Volk5Chair of Metal Forming and Casting, Technical University of Munich, Walther-Meissner-Strasse 4, 85748 Garching, GermanyChair of Metal Forming and Casting, Technical University of Munich, Walther-Meissner-Strasse 4, 85748 Garching, GermanyChair of Metal Forming and Casting, Technical University of Munich, Walther-Meissner-Strasse 4, 85748 Garching, GermanyChair of Metal Forming and Casting, Technical University of Munich, Walther-Meissner-Strasse 4, 85748 Garching, GermanyFraunhofer Research Institute for Casting, Composite and Processing Technology IGCV, Walther-Meissner-Strasse 4, 85748 Garching, GermanyChair of Metal Forming and Casting, Technical University of Munich, Walther-Meissner-Strasse 4, 85748 Garching, GermanyInorganically-bound sand cores are used in many light-metal foundries to form cavities in the cast part, which cannot be realised by the mould itself. To enable FEM simulations with core materials, their mechanical properties have to be measured. In this article, we adapt methods to determine the Young’s and shear modulus, the Poisson ratio and the fracture strain of sand cores. This allows us to fully parametrise an ideal brittle FEM model. We found that the Young’s and shear modulus can be obtained acoustically via the impulse excitation technique. The fracture strain was measured with a high-speed camera and a digital image correlation algorithm.https://www.mdpi.com/1996-1944/13/11/2531inorganic sand core materialselastic propertiesfracture strengthfracture strainwater-glass3-point-bending |
| spellingShingle | Philipp Lechner Georg Fuchs Christoph Hartmann Florian Steinlehner Florian Ettemeyer Wolfram Volk Acoustical and Optical Determination of Mechanical Properties of Inorganically-Bound Foundry Core Materials Materials inorganic sand core materials elastic properties fracture strength fracture strain water-glass 3-point-bending |
| title | Acoustical and Optical Determination of Mechanical Properties of Inorganically-Bound Foundry Core Materials |
| title_full | Acoustical and Optical Determination of Mechanical Properties of Inorganically-Bound Foundry Core Materials |
| title_fullStr | Acoustical and Optical Determination of Mechanical Properties of Inorganically-Bound Foundry Core Materials |
| title_full_unstemmed | Acoustical and Optical Determination of Mechanical Properties of Inorganically-Bound Foundry Core Materials |
| title_short | Acoustical and Optical Determination of Mechanical Properties of Inorganically-Bound Foundry Core Materials |
| title_sort | acoustical and optical determination of mechanical properties of inorganically bound foundry core materials |
| topic | inorganic sand core materials elastic properties fracture strength fracture strain water-glass 3-point-bending |
| url | https://www.mdpi.com/1996-1944/13/11/2531 |
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