On the Tensile and Compressive Fatigue Behaviour of Notched CFRP Laminates

Giangiacomo Minak; Piero Morelli

doi:10.4028/www.scientific.net/KEM.385-387.241

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 385-387On the Tensile and Compressive Fatigue Behaviour...

On the Tensile and Compressive Fatigue Behaviour of Notched CFRP Laminates

Abstract:

This paper describes the experimental results of a set of fatigue tests performed on T300 carbon fiber / epoxy resin laminates cured in autoclave. The effects of anisotropy in laminates lay up have been investigated, as well as the influence of circular hole notches, for both the case of tensile and compressive loading conditions. Due to the high slenderness of specimens, that have the ASTM D3039 standard suggested geometry, a special gripping device has been designed in order to avoid the axial buckling. Fatigue failure probability of the material has been assessed by means of Maximum Likelihood Estimates (MLE) of the experimental data, as a function of the lay-up and load conditions. Eventually, the micrographic analysis of fractured surfaces outlined the combined effects of both the geometry and notches towards the damage behaviour of this kind of material.

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Periodical:

Key Engineering Materials (Volumes 385-387)

Pages:

241-244

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.385-387.241

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Online since:

July 2008

Authors:

Giangiacomo Minak, Piero Morelli

Keywords:

Carbon Fiber Reinforced Polymer/Plastic (CFRP), Fatigue, Maximum Likelihood-Estimation (MLE), Notch Effect

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References

[1] ASTM D3039-00: Standard test method for tensile properties of polymer matrix composite materials.

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[2] ASTM D5766-95: Standard test method for open hole tensile strength of polymer matrix composite materials.

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DOI: 10.1016/s0013-7944(03)00009-2

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[4] H.M.S. Belmonte, S.L. Ogin, P.A. Smith: A physically-based model for the notched strength of woven quasi-isotropic CFRP laminates. Comp. Part A. Vol. 35 (2004), pp.763-778.

DOI: 10.1016/j.compositesa.2004.01.006

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