NUMERICAL PREDICTIONS AND MECHANICAL TESTING OF BRAIDED COMPOSITE STRUCTURES UTILISING DIGITAL IMAGE CORRELATION
The current paper is describing the implementation of a multiscale numerical model for prediction of stiffness and strength in braided composites. The model is validated by experimental testing of single-layer braided tubes under torsional loading utilising digital image correlation (DIC). For the n...
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| Format: | Article |
| Language: | English |
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Czech Technical University in Prague
2016-12-01
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| Series: | Acta Polytechnica CTU Proceedings |
| Online Access: | https://ojs.cvut.cz/ojs/index.php/APP/article/view/3963 |
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| author | Emil Pitz Matei-Constantin Miron Imre Kállai Zoltán Major |
| author_facet | Emil Pitz Matei-Constantin Miron Imre Kállai Zoltán Major |
| author_sort | Emil Pitz |
| collection | DOAJ |
| description | The current paper is describing the implementation of a multiscale numerical model for prediction of stiffness and strength in braided composites. The model is validated by experimental testing of single-layer braided tubes under torsional loading utilising digital image correlation (DIC). For the numerical model the entire braided structure is modelled at yarn detail level, taking into account the yarn behaviour as well as individual yarn-to-yarn interactions by using cohesive contact definitions. By means of Hashin’s failure criteria and cohesive contact damage, failure of the yarns and failure of the yarn-to-yarn interface is being accounted for. Thereby the material failure behaviour can be predicted. For validation of the model, torsion tests of biaxially braided single-layer composite tubes were performed. The strain distribution at the specimen surface was studied using the DIC system ARAMIS in 3D mode. |
| format | Article |
| id | doaj-art-d59e1760f8e04fbb99a4692a1a259d9d |
| institution | Matheson Library |
| issn | 2336-5382 |
| language | English |
| publishDate | 2016-12-01 |
| publisher | Czech Technical University in Prague |
| record_format | Article |
| series | Acta Polytechnica CTU Proceedings |
| spelling | doaj-art-d59e1760f8e04fbb99a4692a1a259d9d2025-08-02T20:27:29ZengCzech Technical University in PragueActa Polytechnica CTU Proceedings2336-53822016-12-0170434710.14311/APP.2017.7.00433499NUMERICAL PREDICTIONS AND MECHANICAL TESTING OF BRAIDED COMPOSITE STRUCTURES UTILISING DIGITAL IMAGE CORRELATIONEmil Pitz0Matei-Constantin Miron1Imre KállaiZoltán MajorInstitute of Polymer Product Engineering, Johannes Kepler Universität Linz, Altenberger Straße 69, Linz, Austria, 4040Institute of Polymer Product Engineering, Johannes Kepler Universität Linz, Altenberger Straße 69, Linz, Austria, 4040The current paper is describing the implementation of a multiscale numerical model for prediction of stiffness and strength in braided composites. The model is validated by experimental testing of single-layer braided tubes under torsional loading utilising digital image correlation (DIC). For the numerical model the entire braided structure is modelled at yarn detail level, taking into account the yarn behaviour as well as individual yarn-to-yarn interactions by using cohesive contact definitions. By means of Hashin’s failure criteria and cohesive contact damage, failure of the yarns and failure of the yarn-to-yarn interface is being accounted for. Thereby the material failure behaviour can be predicted. For validation of the model, torsion tests of biaxially braided single-layer composite tubes were performed. The strain distribution at the specimen surface was studied using the DIC system ARAMIS in 3D mode.https://ojs.cvut.cz/ojs/index.php/APP/article/view/3963 |
| spellingShingle | Emil Pitz Matei-Constantin Miron Imre Kállai Zoltán Major NUMERICAL PREDICTIONS AND MECHANICAL TESTING OF BRAIDED COMPOSITE STRUCTURES UTILISING DIGITAL IMAGE CORRELATION Acta Polytechnica CTU Proceedings |
| title | NUMERICAL PREDICTIONS AND MECHANICAL TESTING OF BRAIDED COMPOSITE STRUCTURES UTILISING DIGITAL IMAGE CORRELATION |
| title_full | NUMERICAL PREDICTIONS AND MECHANICAL TESTING OF BRAIDED COMPOSITE STRUCTURES UTILISING DIGITAL IMAGE CORRELATION |
| title_fullStr | NUMERICAL PREDICTIONS AND MECHANICAL TESTING OF BRAIDED COMPOSITE STRUCTURES UTILISING DIGITAL IMAGE CORRELATION |
| title_full_unstemmed | NUMERICAL PREDICTIONS AND MECHANICAL TESTING OF BRAIDED COMPOSITE STRUCTURES UTILISING DIGITAL IMAGE CORRELATION |
| title_short | NUMERICAL PREDICTIONS AND MECHANICAL TESTING OF BRAIDED COMPOSITE STRUCTURES UTILISING DIGITAL IMAGE CORRELATION |
| title_sort | numerical predictions and mechanical testing of braided composite structures utilising digital image correlation |
| url | https://ojs.cvut.cz/ojs/index.php/APP/article/view/3963 |
| work_keys_str_mv | AT emilpitz numericalpredictionsandmechanicaltestingofbraidedcompositestructuresutilisingdigitalimagecorrelation AT mateiconstantinmiron numericalpredictionsandmechanicaltestingofbraidedcompositestructuresutilisingdigitalimagecorrelation AT imrekallai numericalpredictionsandmechanicaltestingofbraidedcompositestructuresutilisingdigitalimagecorrelation AT zoltanmajor numericalpredictionsandmechanicaltestingofbraidedcompositestructuresutilisingdigitalimagecorrelation |