Abstract
A 3D progressive model with better convergence property is established to capture the mechanical properties and damage mechanism of a composite bolted π-joint under bending load and shown to closely match experimental results. This model is then used to investigate the effect of internal laminate stacking sequence and surface layers thickness on the bending performance of the joint. It was found that the stacking sequence and the surface layers thickness have a significant effect on the matrix crack and delamination distributions in the joint, respectively. Local surface layer thickness can be designed to control the delamination damage around the bolt hole. Finally, volume fraction of 0° layer in the internal laminate and surface layer thickness are used to improve the joint bending performances by proper design.
Similar content being viewed by others
References
Li X, Cheng X, Guo X, Liu S, Wang Z (2020) Tensile properties of a hybrid bonded/bolted joint: parameter study. Compos Struct 245:112329
Abdus S, Cheng X, Huang W, Ahmed A, Hu R (2019) Bearing failure and influence factors analysis of metal-to-composite bolted joints at high temperature. J Braz Soc Mech Sci Eng 41(7):298
Butler B (2000) Composites affordability initiative. Paper presented at the 41st AIAA structures, structural dynamics and materials conference, Atlanta, GA, USA, April
Engelstad S, Berry O, Renieri G, Deobald L, Mabson G, Dopker B, Nottorf E, Clay S (2005) A high fidelity composite bonded joint analysis validation study-part I: analysis. Paper presented at the 46th AIAA structures, structural dynamics and materials conference, TX, USA, April
Lua J, Flansburg B, Engelstad S (2009) XFEM toolkit for delamination failure prediction of composite bonded PI joints. Paper presented at the 50th AIAA structures, structural dynamics and materials conference, Palm Springs, CA, USA, May
Gu H, Wanthal S (2010) Progressive failure analysis of composite pi joint. Paper presented at the 51th AIAA structures, structural dynamics and materials conference, Florida, USA, April
Ji W, Waas A, Raveendra R (2012) Progressive failure analysis method of a Pi joint with uncertainties in fracture properties. Paper presented at the 53th AIAA structures, structural dynamics and materials conference, Hawaii, USA, April
Morrison A, Garnich M, Fertig RS (2017) Reliability analysis of a woven composite Pi-joint structure. J Compos Mater 51(29):4101–4114
Shenoi RA, Hawkins GL (1992) Influence of material and geometry variations on the behaviour of bonded tee connections in FRP ships. Composites 23(5):335–345
Dharmawan F, Thomson RS, Li H, Herszberg I, Gellert E (2004) Geometry and damage effects in a composite marine T-joint. Compos Struct 66(1–4):181–187
Burns LA, Mouritz AP, Pook D, Feih S (2012) Strength improvement to composite T-joints under bending through bio-inspired design. Compos Part A 43(11):1971–1980
Burns L, Mouritz AP, Pook D, Feih S (2016) Strengthening of composite T-joints using novel ply design approaches. Compos Part B 88:73–84
Fu Y, Zhang J, Zhao L (2013) Strength prediction of composite joint under bending load and study of geometric and material variations effects. J Compos Mater 47(8):1029–1038
Sebastian C, Haq M, Patterson E (2017) Analysis of a composite Pi/T-joint using an FE model and DIC. In: Joining technologies for composites and dissimilar materials, vol 10. Springer, pp 11–19
Engelstad S, Mollenhauer D, Berry O, Colleary A (2004) Comparisons of measured moire fringe surface strains and model predictions for a co-bonded pi-preform composite tee joint. Paper presented at the 45st AIAA structures, structural dynamics and materials conference, Palm Springs, CA, USA, April
Flansburg B, Engelstad S, Lua J (2009) Robust design of composite bonded pi joints. Paper presented at the 50st AIAA structures, structural dynamics and materials conference, Palm Springs, CA, USA, May
Tserpes KI, Pantelakis S, Kappatos V (2011) The effect of imperfect bonding on the pull-out behavior of non-crimp fabric Pi-shaped joints. Comput Mater Sci 50(4):1372–1380
Zhao L, Qin T, Ajit-Shenoi R, Zhang J, Liang X, Huang H (2010) Strength prediction of composite joints under tensile load. J Compos Mater 44(23):2759–2778
Shroff S, Kassapoglou C (2014) Designing highly loaded connections in a composite fuselage. J Aircr 51(3):833–840
Taylor R, Owens S (2004) Correlation of an analysis tool for 3-D reinforced bonded joints on the F-35 joint strike fighter. Paper presented at the 45st AIAA structures, structural dynamics and materials conference, Palm Springs, CA, USA, April
Feih S, Shercliff HR (2005) Composite failure prediction of single-L joint structures under bending. Compos Part A Appl Sci Manuf 36(3):381–395
Zhang Q, Cheng X, Cheng Y, Li W, Hu R (2019) Investigation of tensile behavior and influence factors of composite-to-metal 2D-scarf bonded joint. Eng Struct 180:284–294
Olmedo Á, Santiuste C (2012) On the prediction of bolted single-lap composite joints. Compos Struct 94(6):2110–2117
Liu P, Cheng X, Wang S, Liu S, Cheng Y (2016) Numerical analysis of bearing failure in countersunk composite joints using 3D explicit simulation method. Compos Struct 138:30–39
Reddy YS, Reddy JN (1993) Three-dimensional finite element progressive failure analysis of composite laminates under axial extension. J Compos Technol Res 15(2):73–87
Cheng X, Du X, Zhang J, Zhang J, Guo X, Bao J (2018) Effects of stacking sequence and rotation angle of patch on low velocity impact performance of scarf repaired laminates. Compos Part B Eng 133:78–85
Author information
Authors and Affiliations
Corresponding author
Additional information
Technical Editor: João Marciano Laredo dos Reis.
Publisher's Note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Rights and permissions
About this article
Cite this article
Du, X., Cheng, X., Cheng, Y. et al. Analysis and design improvement of composite bolted π-joints under bending load. J Braz. Soc. Mech. Sci. Eng. 42, 384 (2020). https://doi.org/10.1007/s40430-020-02476-2
Received:
Accepted:
Published:
DOI: https://doi.org/10.1007/s40430-020-02476-2