Buckling test of stiffened panels: Evaluation of post-buckling and failure by testing and layerwise models

Riccardo Augello; Alfonso Pagani; Erasmo Carrera; D.M.J. Peeters; Alex Pereira do Prado; Henrique E.A.A. dos Santos; Pedro H.G. Galeb; Pedro H. Cabral

Buckling test of stiffened panels: Evaluation of post-buckling and failure by testing and layerwise models

Riccardo Augello, Alfonso Pagani, Erasmo Carrera, D.M.J. Peeters, Alex Pereira do Prado, Henrique E.A.A. dos Santos, Pedro H.G. Galeb, Pedro H. Cabral

Aerospace Structures & Computational Mechanics

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

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Abstract

The present paper deals with the buckling and post-buckling analysis of a multilayered composite reinforced panel. The panel, design for aeronautical applications, results in a complex stacking sequence, and the development of a refined model able to describe its geometrical nonlinear behavior is mandatory to avoid the usage of highly computational effort-required 3D finite elements. The proposed approach is a finite element analysis based on the Carrera Unified Formulation (CUF). Thanks to CUF, a 1D model of the composite panel can be formulated and complicated stress fields within the structure can be evaluated, so the nonlinear behavior is fully described. A refined Equivalent Single Layer (ESL) technique is employed, making use of Lagrange polynomials for the description of the stacking sequence. The results clearly demonstrate the reliability of this approach, comparing the linearized buckling and nonlinear post-buckling solutions with those from Nastran (1D, 2D and 3D) and experiments.

Original language	English
Title of host publication	Proceedings of the 20th European Conference on Composite Materials: Composites Meet Sustainability
Subtitle of host publication	Vol 4 – Modeling and Prediction
Editors	Anastasios P. Vassilopoulos , Véronique Michaud
Place of Publication	Lausanne
Publisher	EPFL Lausanne, Composite Construction Laboratory
Pages	459-467
Number of pages	8
ISBN (Electronic)	978-2-9701614-0-0
Publication status	Published - 2022
Event	20th European Conference on Composite Materials: Composites Meet Sustainability - Lausanne, Switzerland Duration: 26 Jun 2022 → 30 Jun 2022 Conference number: 20

Conference

Conference	20th European Conference on Composite Materials
Abbreviated title	ECCM20
Country/Territory	Switzerland
City	Lausanne
Period	26/06/22 → 30/06/22

Keywords

Post-buckling
Reinforced Panel
Multilayered structure
Geometrical Nonlinear Analysis
Carrera Unified Formulation

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Augello, R., Pagani, A., Carrera, E., Peeters, D. M. J., do Prado, A. P., dos Santos, H. E. A. A., Galeb, P. H. G., & H. Cabral, P. (2022). Buckling test of stiffened panels: Evaluation of post-buckling and failure by testing and layerwise models. In A. P. Vassilopoulos , & V. Michaud (Eds.), Proceedings of the 20th European Conference on Composite Materials: Composites Meet Sustainability: Vol 4 – Modeling and Prediction (pp. 459-467). EPFL Lausanne, Composite Construction Laboratory.

Augello, Riccardo ; Pagani, Alfonso ; Carrera, Erasmo et al. / Buckling test of stiffened panels : Evaluation of post-buckling and failure by testing and layerwise models. Proceedings of the 20th European Conference on Composite Materials: Composites Meet Sustainability: Vol 4 – Modeling and Prediction. editor / Anastasios P. Vassilopoulos ; Véronique Michaud . Lausanne : EPFL Lausanne, Composite Construction Laboratory, 2022. pp. 459-467

@inproceedings{cd21969f60fa485ea889be38199153a8,

title = "Buckling test of stiffened panels: Evaluation of post-buckling and failure by testing and layerwise models",

abstract = "The present paper deals with the buckling and post-buckling analysis of a multilayered composite reinforced panel. The panel, design for aeronautical applications, results in a complex stacking sequence, and the development of a refined model able to describe its geometrical nonlinear behavior is mandatory to avoid the usage of highly computational effort-required 3D finite elements. The proposed approach is a finite element analysis based on the Carrera Unified Formulation (CUF). Thanks to CUF, a 1D model of the composite panel can be formulated and complicated stress fields within the structure can be evaluated, so the nonlinear behavior is fully described. A refined Equivalent Single Layer (ESL) technique is employed, making use of Lagrange polynomials for the description of the stacking sequence. The results clearly demonstrate the reliability of this approach, comparing the linearized buckling and nonlinear post-buckling solutions with those from Nastran (1D, 2D and 3D) and experiments. ",

keywords = "Post-buckling, Reinforced Panel, Multilayered structure, Geometrical Nonlinear Analysis, Carrera Unified Formulation",

author = "Riccardo Augello and Alfonso Pagani and Erasmo Carrera and D.M.J. Peeters and {do Prado}, {Alex Pereira} and {dos Santos}, {Henrique E.A.A.} and Galeb, {Pedro H.G.} and {H. Cabral}, Pedro",

year = "2022",

language = "English",

pages = "459--467",

editor = "{Vassilopoulos }, {Anastasios P. } and {Michaud }, {V{\'e}ronique }",

booktitle = "Proceedings of the 20th European Conference on Composite Materials: Composites Meet Sustainability",

publisher = "EPFL Lausanne, Composite Construction Laboratory",

note = "20th European Conference on Composite Materials : Composites Meet Sustainability, ECCM20 ; Conference date: 26-06-2022 Through 30-06-2022",

}

Augello, R, Pagani, A, Carrera, E, Peeters, DMJ, do Prado, AP, dos Santos, HEAA, Galeb, PHG & H. Cabral, P 2022, Buckling test of stiffened panels: Evaluation of post-buckling and failure by testing and layerwise models. in AP Vassilopoulos & V Michaud (eds), Proceedings of the 20th European Conference on Composite Materials: Composites Meet Sustainability: Vol 4 – Modeling and Prediction. EPFL Lausanne, Composite Construction Laboratory, Lausanne, pp. 459-467, 20th European Conference on Composite Materials, Lausanne, Switzerland, 26/06/22.

Buckling test of stiffened panels: Evaluation of post-buckling and failure by testing and layerwise models. / Augello, Riccardo; Pagani, Alfonso; Carrera, Erasmo et al.
Proceedings of the 20th European Conference on Composite Materials: Composites Meet Sustainability: Vol 4 – Modeling and Prediction. ed. / Anastasios P. Vassilopoulos ; Véronique Michaud . Lausanne: EPFL Lausanne, Composite Construction Laboratory, 2022. p. 459-467.

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

TY - GEN

T1 - Buckling test of stiffened panels

T2 - 20th European Conference on Composite Materials

AU - Augello, Riccardo

AU - Pagani, Alfonso

AU - Carrera, Erasmo

AU - Peeters, D.M.J.

AU - do Prado, Alex Pereira

AU - dos Santos, Henrique E.A.A.

AU - Galeb, Pedro H.G.

AU - H. Cabral, Pedro

N1 - Conference code: 20

PY - 2022

Y1 - 2022

N2 - The present paper deals with the buckling and post-buckling analysis of a multilayered composite reinforced panel. The panel, design for aeronautical applications, results in a complex stacking sequence, and the development of a refined model able to describe its geometrical nonlinear behavior is mandatory to avoid the usage of highly computational effort-required 3D finite elements. The proposed approach is a finite element analysis based on the Carrera Unified Formulation (CUF). Thanks to CUF, a 1D model of the composite panel can be formulated and complicated stress fields within the structure can be evaluated, so the nonlinear behavior is fully described. A refined Equivalent Single Layer (ESL) technique is employed, making use of Lagrange polynomials for the description of the stacking sequence. The results clearly demonstrate the reliability of this approach, comparing the linearized buckling and nonlinear post-buckling solutions with those from Nastran (1D, 2D and 3D) and experiments.

AB - The present paper deals with the buckling and post-buckling analysis of a multilayered composite reinforced panel. The panel, design for aeronautical applications, results in a complex stacking sequence, and the development of a refined model able to describe its geometrical nonlinear behavior is mandatory to avoid the usage of highly computational effort-required 3D finite elements. The proposed approach is a finite element analysis based on the Carrera Unified Formulation (CUF). Thanks to CUF, a 1D model of the composite panel can be formulated and complicated stress fields within the structure can be evaluated, so the nonlinear behavior is fully described. A refined Equivalent Single Layer (ESL) technique is employed, making use of Lagrange polynomials for the description of the stacking sequence. The results clearly demonstrate the reliability of this approach, comparing the linearized buckling and nonlinear post-buckling solutions with those from Nastran (1D, 2D and 3D) and experiments.

KW - Post-buckling

KW - Reinforced Panel

KW - Multilayered structure

KW - Geometrical Nonlinear Analysis

KW - Carrera Unified Formulation

M3 - Conference contribution

SP - 459

EP - 467

BT - Proceedings of the 20th European Conference on Composite Materials: Composites Meet Sustainability

A2 - Vassilopoulos , Anastasios P.

A2 - Michaud , Véronique

PB - EPFL Lausanne, Composite Construction Laboratory

CY - Lausanne

Y2 - 26 June 2022 through 30 June 2022

ER -

Augello R, Pagani A, Carrera E, Peeters DMJ, do Prado AP, dos Santos HEAA et al. Buckling test of stiffened panels: Evaluation of post-buckling and failure by testing and layerwise models. In Vassilopoulos AP, Michaud V, editors, Proceedings of the 20th European Conference on Composite Materials: Composites Meet Sustainability: Vol 4 – Modeling and Prediction. Lausanne: EPFL Lausanne, Composite Construction Laboratory. 2022. p. 459-467

Buckling test of stiffened panels: Evaluation of post-buckling and failure by testing and layerwise models

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Keywords

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