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Journal of Materials Science

, Volume 44, Issue 16, pp 4487–4490 | Cite as

The cyclic-fatigue behaviour of an epoxy polymer modified with micron-rubber and nano-silica particles

  • C. M. ManjunathaEmail author
  • A. C. Taylor
  • A. J. Kinloch
  • S. Sprenger
Letter

Introduction

Fibre-reinforced plastic (FRP) composites are widely used in ship hull, airframe and wind turbine structural applications where they are subjected to various types of constant and variable amplitude cyclic-fatigue loads. Hence, fatigue-durability is one of the important requirements for such composite materials. These FRPs, generally, contain continuous fibres of carbon or glass reinforced in a thermosetting epoxy-polymer matrix. The epoxy polymers are amorphous and highly cross-linked materials, because of which they have many useful structural properties such as a high modulus and failure strength, good creep resistance, good thermal properties, etc. However, they are relatively brittle and have poor resistance to crack initiation and growth. This, in turn, may adversely affect the overall performance of the FRPs under static and cyclic-fatigue loads.

The addition of micron-rubber and nano-silica particles in the epoxy polymer has been shown to impart significant...

Keywords

Fatigue Life Void Growth Neat Epoxy Epoxy Polymer Fatigue Crack Propagation Rate 

Notes

Acknowledgements

Dr. CM Manjunatha wishes to thank and acknowledge the UK-India Education and Research Initiative (UKIERI) for awarding the Research Fellowship and Dr. AR Upadhya, Director, National Aerospace Laboratories, Bangalore, India for permitting him to accept the Fellowship. Mr. J Sohn Lee is thanked for his assistance with the FEG-SEM work.

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Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  • C. M. Manjunatha
    • 1
    Email author
  • A. C. Taylor
    • 1
  • A. J. Kinloch
    • 1
  • S. Sprenger
    • 2
  1. 1.Department of Mechanical EngineeringImperial College LondonLondonUK
  2. 2.Nanoresins AGGeesthachtGermany

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