Browse > Article
http://dx.doi.org/10.7234/composres.2021.34.1.030

Unit Cell FEM Analysis Using I-Fiber Single Stitch with Different Thickness  

Tapullima, Jonathan (Research Center for Aircraft Parts Technology, School of Mechanical and Aerospace Engineering, Gyeongsang National University)
Park, Gyu Yeong (Research Center for Aircraft Parts Technology, School of Mechanical and Aerospace Engineering, Gyeongsang National University)
Yoon, Dong Hwan (Research Center for Aircraft Parts Technology, School of Mechanical and Aerospace Engineering, Gyeongsang National University)
Choi, Jin Ho (Research Center for Aircraft Parts Technology, School of Mechanical and Aerospace Engineering, Gyeongsang National University)
Publication Information
Composites Research / v.34, no.1, 2021 , pp. 30-34 More about this Journal
Abstract
This paper present a three-dimensional unit cell finite element analysis to predict the pull-out behavior of a single stitch in a composite laminate. The stitching process used for this study correspond to the I-fiber stitching method that has been studied by the Composite Structures Lab (CSL) as a new through-thickness reinforced method. A total of six cases were analyzed, which were divided in two groups by the stitching yarn used, 6k and 12k. Each group of cases have three different thickness according to the amount of plies; 16 plies, 32 plies and 64 plies. The finite element analysis used the cohesive zone method to characterize the single stitch reinforcement in the interface. Due to the complexity of the load vs displacement curves taken from the experimental results, a bilinear and trilinear bridging laws were implemented in the models. The cohesive parameters used for each case showed a good agreement with the experimental data and can be used for future studies.
Keywords
I-fiber stitching; Pull-out; Unit cell; CZM (Cohesive Zone Method);
Citations & Related Records
연도 인용수 순위
  • Reference
1 Ji, H., Kweon, J.H., and Choi, J.H., "Fatigue Characteristics of Stainless Steel Pin-reinforced Composite Hat Joints," Journal of Composite Structures, Vol. 108, 2014, pp. 49-56.   DOI
2 Jones, R.M., Mechanics of Composite Materials 2nd edition, Taylor & Framcis Inc, 1999.
3 Mouritz, A.P., Bannister, M.K., Falzon, P.J., and Leong, K.H., "Review of Applications for Advanced Three-dimensional Fibre Textile Composites", Journal of Composites Part A, Vol. 30, No. 12, 1999, pp. 1445-1461.   DOI
4 Ayranci, C., and Carey, J., "2D Braided Composites: A Review for Stiffness Critical Applications," Journal of Composite Structures, Vol. 85, No. 1, 2008, pp. 43-58.   DOI
5 Chou, S., and Chen, H.E., "The Weaving Methods of Three-dimensional Fabrics of Advanced Composite Materials," Journal of Composite Structures, Vol. 33, No. 3, 1995, pp. 159-172.   DOI
6 Chi, H., Li, Y., Koussios, S., Zu, L., and Beukers, A., "Bridging Micromechanisms of z-pin in Mixed Mode Delamination," Journal of Composite Structures, Vol. 93, No. 11, 2011, pp. 2685-2695.   DOI
7 Ko, F.K., Three-dimensional Fabrics for Composites, Composite Materials Series. Amsterdam: Elsevier Science, 1989.
8 Kim, C.H., Jo, D.H., and Choi, J.H., "Failure Strength of Composite T-joint Prepared Using a New 1-thread Stitching Process," Journal of Composite Structures, Vol. 178, 2017, pp. 225-231.   DOI
9 Tapullima, J., Kim, C.H., and Choi, J.H., "Analysis and Experiment on DCB Specimen Using I-fiber Stitching Process," Journal of Composite Structures, Vol. 220, 2019, pp. 521-528.   DOI
10 Tapullima, J., Sim, H.W., Kweon, J.H., and Choi, J.H., "Analysis on Stitched Mode I Specimen Using Spring Elements," Composites Research, Vol. 32, No. 2, 2019, pp. 102-107.   DOI
11 Kim, C.H., Sim, H.W., An, W.J., Kweon, J.H., and Choi, J.H., "Impact Characteristics of Composite Panel Stitched by I-fiber Process," Journal of Composites Part A, Vol. 127, 2019, pp. 105644.   DOI
12 Yan, Y., and Shang, F., "Cohesive Zone Modeling of Interfacial Delamination in PZT Thin Films," International Journal of Solids and Structures, Vol. 46, No. 13, 2009, pp. 2739-2749.   DOI
13 An, W.J., Kim, C.H., Choi, J.H., and Kweon, J.H., "Static Strength of RTM Composite Joint with I-fiber Stitching Process," Journal of Composite Structures, Vol. 210, 2019, pp. 348-353.   DOI
14 Tapullima, J., Song, S.H., Kweon, J.H., and Choi, J.H., "Characterization of Mode II Specimen Using I-fiber Stitching Process," Journal of Composite Structures, Vol. 225, 2021, pp. 112863.
15 Park, G.Y., "Evaluation and Analysis of Mode I Failure Load for Single Stitched Fiber," Master Thesis, Gyeongsang National University, 2020.
16 Kravchenko, S., Krsvchenko, O., Wortmann, M., Pietrek, M., Horst, P., and Pipes, R.B., "Composite Toughness Enhancement with Interlaminar Reinforcement," Journal of Composites Part A, Vol. 54, 2013, pp. 98-106.   DOI
17 Bianchi, F., and Zhang, X., "A Cohesive Zone Model for Predicting Delamination Suppression on z-pinned Laminates", Composites Science and Technology, Vol. 71, No. 16, 2011, pp. 1898-1907.   DOI
18 Mohamed, G., Allegri, G., Yasaee, M., and Hallett, S.R., "Cohesive Element Formulation for z-pin Delamination Bridging in Fibre Reinforced Laminates," International Journal of Solids and Structures, Vol. 132-133, 2017, pp. 232-244   DOI
19 Heidari-Rarani, M., and Ghasemi, A.R., "Appropriate Shape of Cohesive Zone Model for Delamination Propagation in ENF Specimens with R-curve Effects," Theoretical and Applied Fracture Mechanics, Vol. 90, 2017, pp. 174-181.   DOI
20 Alfano, G., and Crisfeld, M.A., "Finite Element Interface Models for the Delamination Analysis of Laminated Composites: Mechanical and Computational Issues," International Journal for Numerical Methods in Engineering. Vol. 50, No. 7, 2001, pp. 1701-1736.   DOI
21 Diehl, T., "On Using a Penalty-based Cohesive-zone Finite Element Approach, Part II: Inelastic Peeling if an Epoxy-bonded Aluminium Strip," International Journal of Adhesion and Adhesives, Vol. 28, No. 4-5, 2008, pp. 256-265.   DOI
22 Islam, M.S., "Fracture and Delamination in Packaging Materials," PhD Thesis, Blekinge Institute of Technology, 2019.
23 Gutkin, R., Laffan, M.L., Pinho, S.T., Robinson, P., and Curtis, P.T., "Modelling the R-curve Effect and Its Specimen-dependence," International Journal of Solids and Structures, Vol. 48, No. 11-12, 2011, pp. 1767-1777.   DOI