On the reliability of residual stress measurements in unidirectional carbon fibre reinforced epoxy composites
| dc.date.accessioned | 2023-04-26T12:45:17Z | |
| dc.date.available | 2023-04-26T12:45:17Z | |
| dc.date.issued | 2021-03-03 | |
| dc.identifier | doi:10.17170/kobra-202304207855 | |
| dc.identifier.uri | http://hdl.handle.net/123456789/14634 | |
| dc.language.iso | eng | eng |
| dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 International | * |
| dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
| dc.subject | residual stress | eng |
| dc.subject | hole drilling method | eng |
| dc.subject | composite | eng |
| dc.subject | orthotropic material | eng |
| dc.subject | carbon epoxy | eng |
| dc.subject.ddc | 620 | |
| dc.subject.ddc | 660 | |
| dc.title | On the reliability of residual stress measurements in unidirectional carbon fibre reinforced epoxy composites | eng |
| dc.type | Aufsatz | |
| dcterms.abstract | The present work introduces a novel methodology to analyse non-uniform residual stresses in composite materials. For robust determination of stresses in complex structures made of different layers, it is first necessary to prove that residual stress analysis in a single layer structure can reliably be accomplished. In present work a unidirectional carbon fibre reinforced epoxy is investigated. For residual stress determination, the integral incremental hole drilling method is used. It is revealed that the standard evaluation formalism for non-uniform stress analysis in isotropic structures is not applicable. A novel methodology based on the formalism for uniform stress analysis in orthotropic materials is introduced and applied for determining non-uniform residual stress states in depth. For calibration, a known load is induced by bending of samples. By comparing data obtained with the known bending stresses, the reliability of measurements is analysed and the novel formalism introduced is validated. | eng |
| dcterms.accessRights | open access | |
| dcterms.creator | Magnier, Arnaud | |
| dcterms.creator | Wu, Tao | |
| dcterms.creator | Tinkloh, Steffen Rainer | |
| dcterms.creator | Tröster, Thomas | |
| dcterms.creator | Scholtes, Berthold | |
| dcterms.creator | Niendorf, Thomas | |
| dc.relation.doi | doi:10.1016/j.polymertesting.2021.107146 | |
| dc.subject.swd | Eigenspannung | ger |
| dc.subject.swd | Bohrlochmethode | ger |
| dc.subject.swd | Verbundwerkstoff | ger |
| dc.subject.swd | Epoxide | ger |
| dc.type.version | publishedVersion | |
| dcterms.source.identifier | eissn:1873-2348 | |
| dcterms.source.journal | Polymer Testing | eng |
| dcterms.source.volume | Volume 97 | |
| kup.iskup | false |
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