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Nonlinear finite element analysis of composite bolted lap joints: experimental vs numerical tests.

Montagne, Benoît and Lachaud, Frédéric and Paroissien, Eric and Martini, Dominique and Congourdeau, Fabrice Nonlinear finite element analysis of composite bolted lap joints: experimental vs numerical tests. (2019) In: The 22nd International Conference on Composite Materials (ICCM22), 11 August 2019 - 16 August 2019 (Melbourne, Australia).

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PDF (Author's version) - Depositor and staff only - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
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Official URL: https://iccm22.com/

Abstract

Carbon fiber reinforced plastics (CFRP) are widely used in aircraft industry because of their high mechanical properties. However these properties considerably drop when composite materials are drilled and bolted. Thus it is important to master the composite bolted joints behavior to avoid the structural failure. Progressive damage behavior for composite materials developed at Institut Clément Ader (ICA) is implemented on finite element (FE) models to simulate the behavior of supported single lap joints and double lap joints specimens. An in-plane shell model is sufficient to accurately simulate double lap joint tests. However this kind of model does not allow for an accurate representation for a single lap joint test because of the out of plane phenomena occurring during the test. A model with shell behavior is then developed. Damaging scenarios are elaborated to identify the composite material degradations leading to the structural stiffness loss. Compressive then tensile fiber failure in the 0° plies are the main reasons of this stiffness loss.

Item Type:Conference or Workshop Item (Paper)
Audience (conference):International conference proceedings
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Ecole nationale supérieure des Mines d'Albi-Carmaux - IMT Mines Albi (FRANCE)
Université de Toulouse > Institut National des Sciences Appliquées de Toulouse - INSA (FRANCE)
Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE-SUPAERO (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
Laboratory name:
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Deposited By: Benoit Montagne
Deposited On:08 Nov 2019 14:59

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