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Tensile strength and failure behavior of T-stiffened panels with embedded delamination: experimental investigation

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Abstract

A comprehensive consideration of delamination location, delamination size and delamination quantity was focused to determine a quantitative evaluation of the influence of delamination on the tensile strength of T-stiffened panels under the out-of-plane tensile load. Moreover, the failure behavior of T-stiffened panels without delamination and those with delamination under tensile loading was also examined. A characteristic parameter about delamination in the stiffener/panel interface was proposed by means of the ratio (Sr) of the delamination size in the filler/panel interface to the filling area in the filler/panel interface. It is found that the delamination located closely to the stiffener/panel interface, especially closely to the filler/panel interface has the most significant influence on the tensile strength. Another interesting observation is that delamination in the stiffener/panel interface and the stiffener corner also changes the failure mode which cracks along the interior of panels near the adhesive layer.

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References

  1. Xie PP, Zhu S, Shao YY, Peng WF, Zhan LH, Li SJ (2019) Simulation and experimental analysis of autoclave co-curing CFRP hat-stiffened panels with silicone airbag mandrels. Iran Polym J 28:505–514

    Article  CAS  Google Scholar 

  2. Kim HS, Lee DG (2007) Reduction of fabricational thermal residual stress of the hybrid co-cured structure using a dielectrometry. Compos Sci Technol 67:29–44

    Article  CAS  Google Scholar 

  3. Toftegaard H, Lystrup A (2005) Design and test of lightweight sandwich T-joint for naval ships. Compos Part A Appl Sci Manuf 36:1055–1065

    Article  Google Scholar 

  4. Herencia JE, Weaver PM, Friswell MI (2008) Initial sizing optimization of anisotropic composite panels with T-shaped stiffeners. Thin Walled Struct 46:399–412

    Article  Google Scholar 

  5. Shishesaz M, Hosseini M (2020) Effects of joint geometry and material on stress distribution, strength and failure of bonded composite joints: an overview. J Adhes 96:1053–1121

    Article  CAS  Google Scholar 

  6. Huang CK (2003) Study on co-cured composite panels with blade-shaped stiffeners. Compos Part A Appl Sci Manuf 34:403–410

    Article  Google Scholar 

  7. Ma XQ, Gu YZ, Li M, Li YX, Zhang ZG (2014) Investigation of carbon fiber composite stiffened skin with vacuum assisted resin infusion/prepreg co-curing process. Sci China Technol Sci 57:1956–1966

    Article  CAS  Google Scholar 

  8. Kim GH, Choi JH, Kweon JH (2010) Manufacture and performance evaluation of the composite hat-stiffened panel. Compos Struct 92:2276–2284

    Article  Google Scholar 

  9. Yang XB, Zhan LH, Zhao X, Jiang CB (2020) Analysis of porosity and mechanical behavior of composite T-joints produced by random vibration-assisted vacuum processing. Iran Polym J 29:759–770

    Article  CAS  Google Scholar 

  10. Koh TM, Isa MD, Feih S, Mouritz AP (2013) Experimental assessment of the damage tolerance of z-pinned T-stiffened composite panels. Compos Part B 44:620–627

    Article  CAS  Google Scholar 

  11. Phillips HJ, Shenoi RA (1998) Damage tolerance of laminated tee joints in FRP structures. Compos Part A Appl Sci Manuf 29A:465–478

    Article  Google Scholar 

  12. Tan RM, Guan ZD, Sun W, Liu Z, Xu JF (2018) Experiment investigation on impact damage and influences on compression behaviors of single T-stiffened composite panels. Compos Struct 203:486–497

    Article  Google Scholar 

  13. Ayensa A, Oller E, Beltran B, Ibzrz E, Mari A, Gracia L (2019) Influence of the flanges width and thickness on the shear strength of reinforced concrete beams with T-shaped cross section. Eng Struct 188:506–518

    Article  Google Scholar 

  14. Bigaud J, Aboura Z, Martins AT (2018) Analysis of the mechanical behavior of composite T-joints reinforced by one side stitching. Compos Struct 184:249–255

    Article  Google Scholar 

  15. Bai RX, Lei ZK, Wei X, Tao W, Yan C (2017) Numerical and experimental study of dynamic buckling behavior of a J-stiffened composite panel under in-plane shear. Compos Struct 166:96–103

    Article  Google Scholar 

  16. Justo J, Reinoso J, Blázquez A (2017) Experimental failure investigation of pull-off tests of single T-stiffened composite specimens. Compos Struct 177:13–27

    Article  Google Scholar 

  17. Ma XS, Liu HG, Bian K, Lu JY, Xiong K (2020) A numerical and experimental study on the multiple fracture progression of CFRP T-joints under pull-off load. Int J Mech Sci 177:227–237

    Article  Google Scholar 

  18. Denis DR, Cartie GA (2006) 3D reinforcement of stiffener-to-skin T-joints by Z-pinning and tufting. Eng Fract Mech 73:2532–2540

    Article  Google Scholar 

  19. Freitas M, Carvalho R (2006) Residual strength of a damaged laminated CFRP under compressive fatigue stresses. Compos Sci Technol 66:373–378

    Article  Google Scholar 

  20. Baldi A, Airoldi A, Crespi M (2011) Modelling competitive delamination and debonding phenomena in composite T-Joints. Procedia Eng 10:3483–3489

    Article  Google Scholar 

  21. Ye YY, Zhu WD, Jiang JX, Xu Q, Ke YL (2019) Computational modelling of post-buckling behavior of composite T-stiffened panels with different bonding methods. Compos Part B 166:247–256

    Article  CAS  Google Scholar 

  22. Mo YM, Ge DY, He BL (2016) Experiment and optimization of the hat-stringer-stiffened composite panels under axial compression. Compos Part B 84:285–293

    Article  Google Scholar 

  23. Stickler PB, Ramulu M, Johnson PS (2000) Experimental and numerical analysis of transverse stitched T-joints in bending. Compos Struct 50:17–27

    Article  Google Scholar 

  24. Cui H (2014) Delamination and debonding failure of laminated composite T-joints. PhD thesis, Delft University of Technology

  25. Marcadon V, Nadot Y, Roy A, Gacougnolle JL (2006) Fatigue behavior of T-joints for marine applications. Int J Adhes Adhes 26:481–489

    Article  CAS  Google Scholar 

  26. Wang Y, Soutis C (2017) Fatigue behavior of composite T-joints in wind turbine blade applications. Appl Compos Mater 24:461–475

    Article  Google Scholar 

  27. Wang XM, Xie FY, Li M (2009) Correlated rules between complex structure of composite components and manufacturing defects in autoclave molding technology. J Reinf Plast Compos 28:2791–2803

    Article  CAS  Google Scholar 

  28. Li M, Wang XM, Xie FY, Zhang ZG (2009) Influence of fillers in stiffener core and structural parameters on compaction of T-stiffened skins in autoclave process. Polym Polym Compos 17:273–280

    CAS  Google Scholar 

  29. Kumar NJ, Kumar KM, Babu PR(2015) Delamination Damage Propagation Studies of Laminated Composite Stiffened Panels. Int J Eng Res Appl ISSN: 2248-9622 (NCDATES-09th and 10th January 2015):18–24

  30. Li MJ, Chen PH, Kong B, Peng T, Yao ZL (2016) Influences of thickness ratios of flange and skin of composite T-joints on the reinforcement effect of Z-pin. Compos Part B 97:216–225

    Article  Google Scholar 

  31. Dharmawan F, Thomson RS, Li H, Herszberg I, Gellert E (2004) Geometry and damage effects in a composite marine T-joint. Compos Struct 66:181–187

    Article  Google Scholar 

  32. Trask RS, Hallett SR, Helenon FMM, Wisnom MR (2012) Influence of process induced defects on the failure of composite T-joint specimens. Compos Part A Appl Sci Manuf 43:748–757

    Article  Google Scholar 

  33. Wang XM, Li SL, Xie FY (2020) Investigation on performance evaluation of composite T-Stiffened skins fabricated by integral molding technologies under tensile loading. Appl Compos Mater 27:795–809

    Article  CAS  Google Scholar 

  34. Wang XM, Xie FY (2013) Probabilistic analysis method and sub-cluster theory model of delamination for composite components. J Aeronaut Mater 33:72–76

    Google Scholar 

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Acknowledgements

The authors acknowledge the support of the funding from AVIC Composite Corporation LTD (Grant No. GC732011601).

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Authors and Affiliations

  1. Composite Test Technology Center, AVIC Composite Corporation LTD, Beijing, 101300, China

    Xueming Wang

  2. Institute of Industrial and Equipment Technology, Hefei University of Technology, Hefei, 230009, China

    Fuyuan Xie

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  1. Xueming Wang
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  2. Fuyuan Xie
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Correspondence to Xueming Wang.

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Wang, X., Xie, F. Tensile strength and failure behavior of T-stiffened panels with embedded delamination: experimental investigation. Iran Polym J 30, 897–905 (2021). https://doi.org/10.1007/s13726-021-00938-5

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  • DOI: https://doi.org/10.1007/s13726-021-00938-5

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