Schnabel, J. ; Mittelstedt, C. (2019)
Efficient analysis of stress concentrations in laminated composite structures with geometric discontinuities.
In: PAMM — Proceedings in Applied Mathematics and Mechanics, 18 (1)
doi: 10.1002/pamm.201800046
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
A semi‐analytical analysis method for displacements, strains and stresses in laminated composite plates with local reinforcement by patches/doublers is presented. The analysis approach is based on a “global” solution provided by the Classical Laminate Plate Theory (CLPT). Further, a “local” model is introduced which discretizes each laminate ply into several mathematical layers. For each of these mathematical layers an additional displacement field is postulated. These additional displacement fields capture the localized phenomena close to the free edge of the patch and in the plate‐doubler junction but decay rapidly with increasing distance from these locations, i.e. the CLPT solution is recovered. The model shows excellent agreement with FE analyses for different plate‐doubler lay‐ups with the benefit of highly reduced computational costs.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2019 |
| Autor(en): | Schnabel, J. ; Mittelstedt, C. |
| Art des Eintrags: | Bibliographie |
| Titel: | Efficient analysis of stress concentrations in laminated composite structures with geometric discontinuities |
| Sprache: | Englisch |
| Publikationsjahr: | 10 Juli 2019 |
| Ort: | Weinheim |
| Verlag: | Wiley |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | PAMM — Proceedings in Applied Mathematics and Mechanics |
| Jahrgang/Volume einer Zeitschrift: | 18 |
| (Heft-)Nummer: | 1 |
| Veranstaltungstitel: | PAMM — Proceedings in Applied Mathematics and Mechanics |
| Veranstaltungsort: | Weinheim |
| DOI: | 10.1002/pamm.201800046 |
| Kurzbeschreibung (Abstract): | A semi‐analytical analysis method for displacements, strains and stresses in laminated composite plates with local reinforcement by patches/doublers is presented. The analysis approach is based on a “global” solution provided by the Classical Laminate Plate Theory (CLPT). Further, a “local” model is introduced which discretizes each laminate ply into several mathematical layers. For each of these mathematical layers an additional displacement field is postulated. These additional displacement fields capture the localized phenomena close to the free edge of the patch and in the plate‐doubler junction but decay rapidly with increasing distance from these locations, i.e. the CLPT solution is recovered. The model shows excellent agreement with FE analyses for different plate‐doubler lay‐ups with the benefit of highly reduced computational costs. |
| Fachbereich(e)/-gebiet(e): | 16 Fachbereich Maschinenbau 16 Fachbereich Maschinenbau > Fachgebiet für Konstruktiven Leichtbau und Bauweisen-KLuB (2023 umbenannt in Leichtbau und Strukturmechanik (LSM)) |
| Hinterlegungsdatum: | 11 Jul 2019 13:58 |
| Letzte Änderung: | 21 Jan 2021 13:37 |
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