Skip to main content Accessibility help

Impact damage and repair of composite structures

  • B. G. Falzon (a1)


This paper gives an overview of the work carried out in a GARTEUR (Group for Aeronautical Research and Technology in Europe) program, under the chairmanship of the author, to develop and validate analytical and numerical methods to characterise real impact damage in composite structures, particularly those designed to sustain load in a postbuckled state, and to study the durability of bonded repairs. GARTEUR is an inter-governmental agreement between the seven European countries with the largest direct employment in the Aerospace industry, to mobilise scientific and technical knowledge between the member countries. A number of Action Groups have been launched, since GARTEUR’s inception in the early 1970s, to address specific technical issues of interest to the participating members. The research presented in this paper was performed under Action Group 28 with partners from ONERA, EADS-CCR (France), DLR, AIRBUS-Deutschland, EADS-M (Germany), CIRA (Italy), INTA (Spain), SICOMP, Saab, (Sweden), NLR (The Netherlands), QinetiQ, BAE Systems, Imperial College London and the University of Sheffield (United Kingdom). The Action Group tasks were divided into four Work Elements (WEs): WE1-Prediction and characterisation of impact damage, WE2-Postbuckling with delamination, WE3-Repair and WE4-Fatigue. This paper outlines the main developments and achievements within each Work Element.



Hide All
1. Hull, D., Damage mechanism characterisation in composite damage tolerance investigations, Composite Structures, 1993, 23, pp 99120.
2. Olsson, R., Impact Response and Delamination of Composite Plates, 1998, PhD Thesis, Royal Institute of Technology.
3. Olsson, R., Donadon, M.V. and Falzon, B.G., Delamination threshold load for dynamic impact on plates, Int J Solids and Structures, 2006, 43, pp 31243141.
4. Hoek, E.A.V., Oskam, B. and Beek, C. M. v., GARTEUR: 30 years of European collaboration in aeronautics research, 2004, National Aerospace Laboratory NLR, NLR-TP-2004-284.
5. Falzon, B.G., GARTEUR AG-28: Impact damage and repair of composite structures, 2006, GARTEUR, TP-155.
6. Falzon, B.G., GARTEUR AG-28: Impact damage and repair of composite structures — executive summary, 2007, GARTEUR, TP-156.
7. Bathe, K.-J., Finite Element Procedures, 1996, Prentice-Hall, New Jersey, USA.
8. Choi, H.Y. and Chang, F.K., A model for predicting damage in graphite/epoxy laminated composites resulting from low-velocity point impact, J Composite Materials, 1992, 26, pp 21342169.
9. Hashin, Z., Failure criteria for unidirectional fibre composites, J Applied Mechanics, 1980, 47, pp 329334.
10. Falzon, B.G., The behaviour of damage tolerant hat-stiffened composite panels loaded in uniaxial compression, Composites — Part A: Applied Science and Manufacturing, 2001, 32, pp 12551262.
11. Falzon, B.G. and Steven, G.P., Postbuckling behaviour of hat-stiffened thin-skinned carbon-fibre composite panels, 1995, Collection of Technical Papers — AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics & Materials Conference, New Orleans, LA, USA.
12. Falzon, B.G., Stevens, K.A. and Davies, G.O., Postbuckling behaviour of a blade-stiffened composite panel loaded in uniaxial compression, Composites — Part A: Applied Sci and Manufacturing, 2000, 31, pp 459468.
13. Falzon, B.G., Stiffened composite panels loaded in uniaxial compression, 2004, Database CD, Imperial College London.
14. Rybicki, E.F. and Kanninen, M.F., A finite element calculation of stress intensity factors by a modified crack closure integral, Engineering Fracture Mechanics, 1977, 9, pp 931938.
15. Crisfield, M.A., Non-linear Finite Element Analysis of Solids and Structures, Volume 1, 1991, John Wiley & Sons, Chichester.
16. Van Der Veen, H., Vuik, K. and De Borst, R., Branch switching techniques for bifurcation in soil deformation, Computer Methods in Applied Mech and Eng, 2000, 190, pp 707719.
17. Romeo, G. and Frulla, G., Nonlinear analysis of anisotropic plates with initial imperfections and various boundary conditions subjected to combined biaxial compression and shear loads, Int J of Solids and Structures, 1994, 31, pp 763783.
18. Falzon, B.G. and Hitchings, D., Capturing mode-switching in postbuckling composite panels using a modified explicit procedure, Composite Structures, 2003, 60, pp 447453.
19. Falzon, B.G. and Cerini, M., A study of secondary instabilities in postbuckling composite aerostructures, Aeronaut J, November 2007, 111, (1125), pp 715729.
20. Mi, Y., Crisfield, M.A., Hellweg, H.B. and Davies, G.A.O., Finite element method and progressive failure modelling of composite structures, Computational Plasticity: Fundamentals and Applications, Part 1, 1997, Owen, J. et al (Ed), CIMNE, Barcelona, pp 239254.
21. Charalambides, M.N., Hardouin, R., Kinloch, A.J. and Matthews, F.L., Adhesively-bonded repairs to fibre-composite materials I: experimental, Composites — Part A: Applied Science and Manufacturing, 1998, 29, pp 13711381.
22. Charalambides, M.N., Kinloch, A.J. and Matthews, F.L., Adhesively-bonded repairs to fibre-composite materials II: finite element modelling, Composites — Part A: Applied Science and Manufacturing, 1998, 29, pp 13831396.
23. Habib, F.A., A new method for evaluating the residual compression strength of composites after impact, Composite Structures, 2001, 53, pp 309316.
24. Hu, F.Z. and Soutis, C., Strength prediction of patch-repaired CFRP laminates loaded in compression, Composite Sci and Tech, 2000, 60, pp 11031114.
25. Soutis, C., Duan, D.M. and Goutas, P., Compressive behaviour of CFRP laminates repaired with adhesively bonded external patches, Composite Structures, 1999, 45, pp 289301.
26. Tenchev, R.T. and Falzon, B.G., Experimental and numerical study of debonding in composite adhesive joints, 2007, 16th International Conference on Composite Materials, Kyoto, Japan.
27. Tenchev, R.T. and Falzon, B.G., A pseudo-transient solution strategy for the analysis of delamination by means of interface elements, Finite Elements in Analysis and Design, 2006, 42, pp 698708.
28. Peerlings, R.H.J., Brekelmans, W.A.M., De Borst, R. and Geers, M.G.D., Gradient-enhanced damage modelling of high-cycle fatigue, Int J for Numerical Methods in Eng, 2000, 49, pp 15471569.
29. Habib, F.A., Davies, A., Baaran, J. and Ousset, Y., Literature survey on fatigue behaviour of composite structures, 2004, GARTEUR AG-28, TP-146.
30. Adam, T., Dickson, R.F., Jones, C.J., Reiter, H. and Harris, B., A power law fatigue damage model for fibre-reinforced plastic laminates, Proceedings of the Institution of Mechanical Engineers, Part C: Mechanical Engineering Science, 1986, 200, pp 155166.
31. Paris, P. and Erdogan, F., Critical analysis of crack propagation laws, American Society of Mechanical Engineers — Transactions — J Basic Engineering, 1963, 85, pp 528534.
32. Kruger, R., Hansel, C. and Konig, M., Experimental-numerical investigation of delamination buckling and growth, 1996, University of Stuttgart, Germany, NR 96/3.


Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed