Influence of the Deformation Rate on the Delamination of Laminated Composite Materials


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It is well known that delamination is one of the most critical mechanism of failure of laminated composite materials. It supposes an important load capacity reduction, it is difficult to see and his evolution modify the failure of the component. Composite delamination depends on their fracture toughness. On the other hand, impacts are the most dangerous loads for those materials due to the important deformation rate induced in the material. This work analyses the influence of load velocity in the fracture toughness, for modes I and II, in textile carbon/epoxy, up to an impact velocity of 0,190 m/s. For that range, results show that the mode I fracture toughness decrease with velocity, while for mode II it remains nearly constant. However, the load velocities analyzed are yet far from those induced in a low speed impact. We propose to continue this research by increasing deformation rates using drop tower impact techniques, to observe if the trend observed so far is maintained on increasing speed.



Edited by:

Luis Rodríguez-Tembleque, Jaime Domínguez and Ferri M.H. Aliabadi




C. López-Taboada et al., "Influence of the Deformation Rate on the Delamination of Laminated Composite Materials", Key Engineering Materials, Vol. 774, pp. 435-440, 2018

Online since:

August 2018




* - Corresponding Author

[1] T. M. Sjoblom, P.O., Hartness, J.T., Cordell, On low-velocity impact testing of composite materials, J. Compos. Mater., vol. 22, no. 1, p.30–52, (1988).


[2] M. O. W. Richardson and M. J. Wisheart, Review of low-velocity impact properties of composite materials, Compos. Part A Appl. Sci. Manuf., vol. 27, no. 12, p.1123–1131, (Jan. 1996).


[3] G. Reid, S.R. , Zhou, Impact behavior of fiber-reinforced composite materials and structures. (2000).

[4] B. V. Sankar, Low-Velocity Impact Response and Damage in Composite Materials, Key Eng. Mater., Vol. 120–121, p.549–582, (1996).


[5] S. Abrate, Impact on composite structures. Cambridge University Press (2005).

[6] G. Caprino, Residual strength prediction of impacted CFRP laminates, J. Compos. Mater., vol. 18, no. 6, p.508–518, (1984).

[7] W.J., Cantwell, M., Blyton, Influence of Loading Rate on the Interlaminar Fracture Properties of High Performance Composites - A Review, Appl. Mech. Rev., vol. 52, no. 6, p.199–212, (1999).


[8] P. Feraboli and K. T. Kedward, A new composite structure impact performance assessment program, Compos. Sci. Technol., vol. 66, no. 10, p.1336–1347, (2006).


[9] G. C. Jacob et al., The effect of loading rate on the fracture toughness of fiber reinforced polymer composites, J. Appl. Polym. Sci., vol. 96, no. 3, p.899–904, (2005).

[10] B.R.K, Blackman, J.P., Dear, A.J., Kinloch, H., Macgillivray, Y., Wang, J.G., Williams, P., Yayla, The failure of fiber composites and adhesively bonded fiber composites under high rates of test, J. Mater. Sci., vol. 30, no. 23, p.5885–5900, (1995).


[11] H. Zabala, L. Aretxabaleta, G. Castillo-Lopez, J. Urien, J. Aurrekoetxea. Impact velocity effect on the delamination. Composites Science and Technology, vol. 94, pp.48-53, (2014).


[12] ASTM, ASTM 5528-01. Standard Test Method for Mode I Interlaminar Fracture Toughness of Unidirectional Fiber-Reinforced Polymer Matrix Composites, (2009).


[13] B. D. Martin, R.H., Davidson, Mode II fracture toughness evaluation using four point bend end notched flexure test, Plast. Rubber Compos., vol. 28, no. 8, p.401–406, (1999).


[14] W.-X. Wang, M. Nakata, Y. Takao, and T. Matsubara, Experimental investigation on test methods for mode II interlaminar fracture testing of carbon fiber reinforced composites, Compos. Part A Appl. Sci. Manuf., vol. 40, no. 9, p.1447–1455, Sep. (2009).


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