Kharghani, Navid ; Mittelstedt, Christian (2022)
Reduction of free-edge effects around a hole of a composite plate using a numerical layup optimization.
In: Composite Structures, 284
doi: 10.1016/j.compstruct.2021.115139
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
The stacking sequence has a great influence on the performance of composite structures especially when it comes to stress concentration effects. In the current research, various orientation angles and layups for a composite plate with a central hole are investigated and the optimized layup is determined for the desired thickness. The objective of the optimization is the minimization of the interlaminar peeling stress around the hole. Failure strength around the hole is the basis of the constraint incorporating Hashin’s failure criteria for each lamina individually. For this purpose a two-step analysis is carried out: Primarily a finite element analysis is performed using ABAQUS to determine the constraint for orientation angles. Then, the pattern search method is utilized to obtain the optimized layup using the interaction of MATLAB and ABAQUS software. Moreover, a sensitivity analysis is carried out to determine the effect of the material properties, the size of the hole and the initial guess applied for the pattern search solution upon the optimal layup sequence.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2022 |
| Autor(en): | Kharghani, Navid ; Mittelstedt, Christian |
| Art des Eintrags: | Bibliographie |
| Titel: | Reduction of free-edge effects around a hole of a composite plate using a numerical layup optimization |
| Sprache: | Englisch |
| Publikationsjahr: | 2022 |
| Ort: | Amsterdam |
| Verlag: | Elsevier |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Composite Structures |
| Jahrgang/Volume einer Zeitschrift: | 284 |
| Kollation: | 19 Seiten |
| DOI: | 10.1016/j.compstruct.2021.115139 |
| URL / URN: | https://www.sciencedirect.com/science/article/pii/S026382232... |
| Kurzbeschreibung (Abstract): | The stacking sequence has a great influence on the performance of composite structures especially when it comes to stress concentration effects. In the current research, various orientation angles and layups for a composite plate with a central hole are investigated and the optimized layup is determined for the desired thickness. The objective of the optimization is the minimization of the interlaminar peeling stress around the hole. Failure strength around the hole is the basis of the constraint incorporating Hashin’s failure criteria for each lamina individually. For this purpose a two-step analysis is carried out: Primarily a finite element analysis is performed using ABAQUS to determine the constraint for orientation angles. Then, the pattern search method is utilized to obtain the optimized layup using the interaction of MATLAB and ABAQUS software. Moreover, a sensitivity analysis is carried out to determine the effect of the material properties, the size of the hole and the initial guess applied for the pattern search solution upon the optimal layup sequence. |
| Freie Schlagworte: | Free-edge effect, Layup optimization, Composite laminates, Interlaminar stresses |
| ID-Nummer: | Artikel-ID: 115139 |
| 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: | 20 Sep 2024 07:17 |
| Letzte Änderung: | 20 Sep 2024 07:17 |
| PPN: | 521627486 |
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| Suche nach Titel in: | TUfind oder in Google |
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