An Improved Method for Dynamic Behaviour Prediction of Carbon Fibre Reinforced Epoxy (CFRE) using Finite Element Model Updating

The dynamic behaviour prediction scheme of carbon fibre composite structures are extremely challenging to be performed due to the geometrical ply-by-ply properties and the ply orientation issues. In this paper, a laminated carbon fibre reinforced epoxy plate with elastic and linear layers was used w...

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Bibliographic Details
Published in:IOP conference series. Materials Science and Engineering 2021-01, Vol.1041 (1), p.12064
Main Authors: Shah, M A S A, Yunus, M A, Rani, M N A, Mirza, W I I W I, Sani, M. S. M.
Format: Article
Language:English
Subjects:
Carbon
Carbon fiber reinforced plastics
Carbon-epoxy composites
Composite structures
Fiber composites
Fiber reinforced polymers
Finite element method
Laminates
Mathematical models
Modal analysis
Model accuracy
Model updating
Modelling
Nastran
Parameter identification
Parameter sensitivity
Ply orientation
Sensitivity analysis
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Summary:The dynamic behaviour prediction scheme of carbon fibre composite structures are extremely challenging to be performed due to the geometrical ply-by-ply properties and the ply orientation issues. In this paper, a laminated carbon fibre reinforced epoxy plate with elastic and linear layers was used with aim to investigate the dynamic behaviour of the carbon fibre reinforced epoxy using practical modelling scheme via finite element modelling and updating method. A simplified FE model of the CFRE plate was developed using shell element properties known as PSHELL to represent geometrical laminated properties. Subsequently, the dynamic behaviour of the FE model was calculated using Nastran SOL103. Potential updating parameters of the FE model was analysed and identified using the sensitivity analysis. The model updating method was then used to update the initial FE model of the CFRE plate based on the experimental modal analysis (EMA) result. The comparison of the results were used in verifying the accuracy of the updated FE model of the CFRE plate. The result suggested that the PSHELL properties can be used efficiently to represent the geometrical laminated properties of the CFRE plate without considering the geometrical effect of ply-by-ply properties.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/1041/1/012064