Spring-Back Simulation Of Unidirectional Carbon/Epoxy L-Shaped Laminate Composites Manufactured Through Autoclave Processing
This paper presents an original method in predicting the spring-back for composite aircraft structures using non-linear Finite Element Analysis (FEA) and is an extension of the previous accompanying study on flat geometry samples. Firstly, unidirectional prepreg lay-up samples are fabricated on moul...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | en |
| Published: |
IOP Publishing
2016
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| Subjects: | |
| Online Access: | http://eprints.utem.edu.my/id/eprint/17274/1/Spring-Back%20Simulation%20Of%20Unidirectional%20Carbon%20Epoxy%20L-%20Shaped%20Laminate%20Composites%20Manufactured%20Through%20Autoclave%20Processing.pdf http://eprints.utem.edu.my/id/eprint/17274/ http://iopscience.iop.org/article/10.1088/1757-899X/114/1/012025/pdf |
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| Summary: | This paper presents an original method in predicting the spring-back for composite aircraft structures using non-linear Finite Element Analysis (FEA) and is an extension of the previous accompanying study on flat geometry samples. Firstly, unidirectional prepreg lay-up samples are fabricated on moulds with different corner angles (30o, 45o and 90o) and the effect on spring-back deformation are observed. Then, the FEA model that was developed in the previous study on flat samples is utilized. The model maintains the physical mechanisms of spring-back such as ply stretching and tool-part interface properties with the additional mechanism in the corner effect and geometrical changes in the tool, part and the tool-part interface components. The comparative study between the experimental data and FEA results show that the FEA model predicts adequately the spring-back deformation within the range of corner angle tested. |
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