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Progressive Failure Analysis of Composite Pressure Vessels by Finite Element Method

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Abstract:

The progressive failure analysis of composite pressure vessel under hydrostatic pressure has been carried out. The composite pressure vessel has been modeled by using layer structural shell element. After the failure of the weakest ply, the stiffness is reduced by either fiber failure or matrix failure. The stiffness of failed element has been totally discarded and other element are considered to remain unchanged after the weakest ply failure. The stress of the laminate at the same point is evaluated again to see if the laminate can carry additional load. This ply-by-ply analysis progresses until the ultimate strength of the pressure vessels is reached. A parametric study has been done on the progressive failure analysis.

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Periodical:

Key Engineering Materials (Volumes 348-349)

Pages:

133-136

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.348-349.133

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Online since:

September 2007

Authors:

Li Li Tong, Zhen Qing Wang, S.H. Chen, Bao Hua Sun

Keywords:

Composite Pressure Vessel, Finite Element Model (FEM), Progressive Failure Analysis

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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References

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