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Damage Analyses of Adhesively Bonded Single Lap Joints Due to Delaminated FRP Composite Adherends

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Abstract

Three-dimensional non-linear Finite Element Analyses (FEA) due to an in-plane loading have been performed to evaluate the out-of-plane normal and shear stresses over the overlap region of a Single Lap Joint (SLJ) on different surfaces. These surfaces have been considered as; (i) two interfacial surfaces between the adherends and the adhesive layer, (ii) the mid-surface of the adhesive layer and (iii) two surfaces beneath the surface ply of both the adherends adjacent to the adhesive layer. The critical locations of onset of adhesion, cohesion and delamination failures on the above mentioned surfaces of the SLJ have been determined using suitable damage criteria. A comparative study due to adhesion, cohesion and delamination failures in the SLJ with Fiber Reinforced Polymeric (FRP) composite adherends have been presented. The effects of simultaneous variations of the delamination positions on the out-of-plane peel and shear stress components have been studied by pre-embedding the delamination damages at the critical locations in both the adherends. It has been observed that the possibilities of onset of cohesion failures in the adhesive layer are higher compared to the adhesion and delamination failures. The detailed analyses showed that secondary peaks of out-of-plane stress components (σ z , τ yz and τ xz ) on the mid surface of the adhesive layer appeared at the locations closer to the delamination fronts due to pre-embedded delamination damages. The highest stress magnitudes on the overlap edge of the SLJ have been reduced significantly when the centers of the delamination damages are exactly aligned with the overlap ends of the joint. No significant variations of stress magnitudes have been noticed either when the delaminations are pre-embedded outside the overlap regions or when the delamination damages are completely entrapped within the overlap region.

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References

  1. Adams, R.D., Comyn, J., Wake, W.C.: Structural Adhesive Joints in Engineering. Chapman and Hall, London (1997)

    Google Scholar 

  2. Tong, L., Steven, G.P.: Analysis and design of structural bonded joints. Kluwer academic Publishers (1999)

  3. Panigrahi, S.K., Pradhan, B.: Adhesion failure propagation in adhesively-bonded single-lap laminated FRP composite joints. J. Adhes. Sci. Technol. 21, 379–398 (2007). doi:10.1163/156856107780474920

    Article  CAS  Google Scholar 

  4. Mangalgiri, P.D., Johnson, W.S.: Preliminary design of cracked-lap shear specimen thickness for determination of interlaminar fracture toughness. J Compos Technol Res 8, 58–60 (1986)

    Article  CAS  Google Scholar 

  5. Rao, B.N., Acharya, A.R.: Evaluation of fracture energy G IC using a double cantilever beam fiber composite specimen. Eng. Fract. Mech. 51, 317–322 (1995). doi:10.1016/0013-7944(94)00251-C

    Article  Google Scholar 

  6. Alif, N., Carlsson, L.A., Gillespie, J.W., Jr.: ASTM STP 1242, 82–106 (1997)

    Google Scholar 

  7. Goland, M., Reissner, E.: The stresses in cemented joints. ASME Trans. J. Appl. Mech. 7, A17–A27 (1944)

    Google Scholar 

  8. Hart-Smith, L.J.: Adhesive-Bonded Single Lap Joints. NASA-CR-112236 (1973)

  9. Adams, R.D.: Strength predictions for lap joints, especially with composite adherends: A review. J. Adhes. 30, 219–242 (1989). doi:10.1080/00218468908048207

    Article  CAS  Google Scholar 

  10. Oplinger, D.W.: A Layered Beam Theory for Single Lap Joints. MTL TR 91–23 (1991)

  11. Tong, L., Jain, L.K.: Analysis of adhesive bended composite lap joints with transverse stitching. Acta Mech. 2, 343–365 (1995)

    CAS  Google Scholar 

  12. Tsai, M.Y., Morton, J.: An evaluation of analytical and numerical solutions to the single-lap joints. Int. J. Solids Struct. 31, 2537–2563 (1994). doi:10.1016/0020-7683(94)90036-1

    Article  MATH  Google Scholar 

  13. Chen, D., Cheng, S.: An analysis of adhesive-bonded single-lap joints. ASME Trans. J. Appl. Mech. 50, 109–115 (1983)

    Article  MATH  Google Scholar 

  14. Crocombe, A.D., Adams, R.D.: Influence of the spew fillet and other parameters on the stress distribution in the single-lap joints. J. Adhes. 13, 141–155 (1981). doi:10.1080/00218468108073182

    Article  Google Scholar 

  15. Ojalvo, I.U., Eidinoff, H.: Bond thickness effects upon stresses in single-lap adhesive joints. AIAA J. 16, 204–211 (1978). doi:10.2514/3.60878

    Article  ADS  Google Scholar 

  16. Adams, R.D., Harris, J.A.: The influence of local geometry on the strength of adhesive bonded joints. Int J Adhes Adhes 7, 69–80 (1987). doi:10.1016/0143-7496(87)90092-3

    Article  CAS  Google Scholar 

  17. Tong, L.: Strength of adhesively bonded composite single lap joints with embedded cracks. AIAA J. 36, 448–456 (1998). doi:10.2514/2.385

    Article  ADS  Google Scholar 

  18. Wheeler, G.E., Madsen, B.S., DeVries, K.L.: Fracture mechanics applied to adhesive joints. J ASTM Int 2, 1–19 (2005). doi:10.1520/JAI12959

    Article  Google Scholar 

  19. Matthews, F.L., Kilty, P.F., Godwin, E.W.: A review in the strength of joints in fiber reinforced plastics. Compos 13, 29–37 (1982). doi:10.1016/0010-4361(82)90168-9

    Article  CAS  Google Scholar 

  20. Panigrahi, S.K., Pradhan, B.: Through-the-width delamination damage propagation characteristics in single-lap laminated FRP composite joints. Int J Adhes Adhes 29, 114–124 (2009). doi:10.1016/j.ijadhadh.2008.03.001

    Article  CAS  Google Scholar 

  21. Carpenter, W.C.: A comparison of numerous lap joint theories for adhesively bonded joints. J. Adhes. 35, 55–73 (1991). doi:10.1080/00218469108030435

    Article  Google Scholar 

  22. Luo, Q.T., Tong, L.: An accurate laminated element for piezoelectric smart beams including peel stress. Comput. Mech. 33, 108–120 (2004). doi:10.1007/s00466-003-0504-6

    Article  MATH  Google Scholar 

  23. Wu, G., Crocombe, A.D.: Simplified finite element modelling of structural adhesive joints. Comput. Struc. 61, 385–391 (1996). doi:10.1016/0045-7949(96)00101-0

    Article  Google Scholar 

  24. Cheuk, P.T., Tong, L.: Failure of adhesive bonded composite lap shear joints with embedded precrack. Compos. Sci. Technol. 62, 1079–1095 (2002). doi:10.1016/S0266-3538(02)00054-4

    Article  Google Scholar 

  25. Luo, Q.T., Tong, L.: Fully-coupled nonlinear analysis of single lap adhesive joints. Int. J. Solids Struct. 44, 2349–2370 (2007). doi:10.1016/j.ijsolstr.2006.07.009

    Article  MATH  Google Scholar 

  26. Panigrahi, S.K., Pradhan, B.: Onset and growth of adhesion failure and delamination induced damages in double lap joint of laminated FRP composites. Compos. Struct. 85, 326–336 (2008). doi:10.1016/j.compstruct.2007.10.036

    Article  Google Scholar 

  27. Tay, T.E.: Characterization and analysis of delamination fracture in composites: An overview of developments from 1990 to 2001. ASME Trans, J Appl Mech Rev 56, 1–32 (2003)

    Article  Google Scholar 

  28. Raghava, R.S., Cadell, R.M., Yeh, G.S.: The macroscopic yield behaviour of polymers. J. Mater. Sci. 8, 225–232 (1973). doi:10.1007/BF00550671

    Article  ADS  CAS  Google Scholar 

  29. Tsai, S.W., Wu, E.M.: A general theory of strength for anisotropic materials. J Compos Mater 5, 58–80 (1971). doi:10.1177/002199837100500106

    Article  Google Scholar 

  30. Dattaguru, B., Ramamurthy, T.S., Venkatesha, K.S., Buchholz, F.G.: Finite element estimates of strain energy release rate components at the tip of an interface crack under Mode I loading. Eng. Fract. Mech. 49, 211–228 (1994). doi:10.1016/0013-7944(94)90273-9

    Google Scholar 

  31. Tserpes, K.I., Labeas, G., Papanikos, P., Kermanidis, T.: Strength prediction of bolted joints in graphite/epoxy composite laminates. Compos-Part B. Engineering 33, 521–529 (2002)

    Article  Google Scholar 

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Panigrahi, S.K. Damage Analyses of Adhesively Bonded Single Lap Joints Due to Delaminated FRP Composite Adherends. Appl Compos Mater 16, 211–223 (2009). https://doi.org/10.1007/s10443-009-9087-5

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