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Computational model for the semi‐analytical assessment of the free‐edge effect in composite laminated shells

Kappel, Andreas ; Mittelstedt, Christian (2023)
Computational model for the semi‐analytical assessment of the free‐edge effect in composite laminated shells.
In: PAMM - Proceedings in Applied Mathematics and Mechanics, 2023, 23 (1)
doi: 10.26083/tuprints-00024302
Article, Secondary publication, Publisher's Version

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Item Type: Article
Type of entry: Secondary publication
Title: Computational model for the semi‐analytical assessment of the free‐edge effect in composite laminated shells
Language: English
Date: 4 August 2023
Place of Publication: Darmstadt
Year of primary publication: 2023
Publisher: Wiley‐VCH
Journal or Publication Title: PAMM - Proceedings in Applied Mathematics and Mechanics
Volume of the journal: 23
Issue Number: 1
Collation: 6 Seiten
DOI: 10.26083/tuprints-00024302
Corresponding Links:
Origin: Secondary publication DeepGreen
Abstract:

The development of efficient computational models for the accurate prediction of the state variables in general composite laminated shells undergoing uniform edge loadings is a major challenge, especially when stress concentration phenomena such as the free‐edge effect have to be considered. This paper addresses this issue by introducing a higher‐order semi‐analytical approach for the assessment of the three‐dimensional stress field in circular cylindrical composite shells with arbitrary layups subjected to a uniform bending moment. The presented semi‐analytical approach combines a closed‐form analytical plane‐strain solution with a higher‐order layerwise approach, and the governing equations are derived by virtue of the principle of minimum elastic potential. The resulting system of coupled ordinary differential equations is then solved by means of the state‐space approach and the free constants are determined by evaluating the boundary conditions at the traction‐free edges. A comparison of the numerical results of the presented semi‐analytical method with finite element simulations for various composite laminates indicates that the developed method works with high accuracy, although being extremely efficient in terms of computational resources.

Identification Number: e202200282
Status: Publisher's Version
URN: urn:nbn:de:tuda-tuprints-243024
Additional Information:

Special Issue: 92nd Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM)

Classification DDC: 600 Technology, medicine, applied sciences > 620 Engineering and machine engineering
Divisions: 16 Department of Mechanical Engineering > Institute for Lightweight Construction and Design-KluB (2023 renamed in Leichtbau und Strukturmechanik (LSM))
Date Deposited: 04 Aug 2023 12:33
Last Modified: 17 Oct 2023 07:51
SWORD Depositor: Deep Green
URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/24302
PPN: 512230064
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