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Open AccessArticle

Peridynamic Modeling of Mode-I Delamination Growth in Double Cantilever Composite Beam Test: A Two-Dimensional Modeling Using Revised Energy-Based Failure Criteria

by Xiao-Wei Jiang 1,2, Shijun Guo 2, Hao Li 2 and Hai Wang 1,*
1
School of Aeronautics and Astronautics, Shanghai Jiao Tong University, Shanghai 200240, China
2
Centre of Aeronautics, Cranfield University, Cranfield, MK43 0AL, UK
*
Author to whom correspondence should be addressed.
Appl. Sci. 2019, 9(4), 656; https://doi.org/10.3390/app9040656
Received: 24 December 2018 / Revised: 10 February 2019 / Accepted: 12 February 2019 / Published: 15 February 2019
(This article belongs to the Special Issue Fracture and Fatigue Assessments of Structural Components)
This study presents a two-dimensional ordinary state-based peridynamic (OSB PD) modeling of mode-I delamination growth in a double cantilever composite beam (DCB) test using revised energy-based failure criteria. The two-dimensional OSB PD composite model for DCB modeling is obtained by reformulating the previous OSB PD lamina model in x–z direction. The revised energy-based failure criteria are derived following the approach of establishing the relationship between critical bond breakage work and energy release rate. Loading increment convergence analysis and grid spacing influence study are conducted to investigate the reliability of the present modeling. The peridynamic (PD) modeling load–displacement curve and delamination growth process are then quantitatively compared with experimental results obtained from standard tests of composite DCB samples, which show good agreement between the modeling results and experimental results. The PD modeling delamination growth process damage contours are also illustrated. Finally, the influence of the revised energy-based failure criteria is investigated. The results show that the revised energy-based failure criteria improve the accuracy of the PD delamination modeling of DCB test significantly. View Full-Text
Keywords: peridynamics; composite; ordinary state-based; double cantilever composite beam (DCB); delamination peridynamics; composite; ordinary state-based; double cantilever composite beam (DCB); delamination
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Jiang, X.-W.; Guo, S.; Li, H.; Wang, H. Peridynamic Modeling of Mode-I Delamination Growth in Double Cantilever Composite Beam Test: A Two-Dimensional Modeling Using Revised Energy-Based Failure Criteria. Appl. Sci. 2019, 9, 656.

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