Postbuckling Analysis of Laminate with Delamination Based on the Improved Damage Model of 2-D

Abstract:

The paper presents the compatibility relation of displacement, strain energy expression, and the formulations of Finite Element Method in the transitional region for the improved damage model of 2-D delamination[1]. The postbuckling behaviors of composite laminated plate with a circular delamination are analyzed. Results show that the model mainly improves computational results of energy release rates in the delamination front. The model should only be used in a narrow region near the crack-tip and the normal Mindlin model in other regions. It leads to little increase in the amount of computation, but significant improvement in the results.

• Periodical: Key Engineering Materials (Volumes 385-387)
• Pages: 253-256
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.385-387.253
• Online since: July 2008
• Authors: Gang Yang, Ai Feng Zhang, Hai Bin Wang, Peng Niu
• Keywords: Delamination, Energy Release Rate, Finite Element Analysis (FEA), Laminate Theory, Modeling, Post-Buckling

References

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