Chinese Science Bulletin

, Volume 55, Issue 12, pp 1199–1208 | Cite as

SEM in situ laboratory investigations on damage growth in GFRP composite under three-point bending tests

  • HongWei Zhou
  • L. MishnaevskyJr
  • P. Brøndsted
  • JinBiao Tan
  • LeLe Gui
Articles Materials Science

Abstract

Glass fiber-reinforced polymer (GFRP) composites are widely used in low-weight constructions. SEM (scanning electron microscopy) in situ experiments of damage growth in GFRP composite under three-point bending loads are carried out. By summarizing the experimental results of three groups of samples with different orientation angles of fibers, the dependence of mechanical parameters on the orientation angles of fibers are analyzed. The regression analysis show that the peak strengths, the elastic strengths and the elastic modulus of the composites decease with the orientation angles of fibers almost linearly. Moreover, the damage growth and meso-scale structure changes in GFRP composites during three-point bending loading are analyzed.

Keywords

scanning electron microscopy (SEM) experiment GFRP composite three-point bending damage growth 

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References

  1. 1.
    Cooper G A. The structure and mechanical properties of composite materials. Rev Phys Tech, 1971, 2: 49–91CrossRefGoogle Scholar
  2. 2.
    Evans A G. Design and life prediction issues for high-temperature engineering ceramics and their composites. Acta Mater, 1997, 45: 23–40CrossRefGoogle Scholar
  3. 3.
    Sørensen B F, Jacobsen T K. Large-scale bridging in composite: R-curves and bridging laws. Compos Part A-Appl S, 1998, 29: 1443–1541CrossRefGoogle Scholar
  4. 4.
    Jacobsen T K, Sørensen B F. Model I intra-laminar crack growth in composite-modeling of R-curves from measured bridging laws. Compos Part A-Appl S, 2001, 32: 1–11CrossRefGoogle Scholar
  5. 5.
    Budiansky B, Fleck N A. Compressive failure of fibre composites. J Mech Phys Solids, 1993, 41: 183–211CrossRefGoogle Scholar
  6. 6.
    Hahn H T, Williams J G. Compressive failure mechanisms in unidirectional composites. NASA TM 85834, 1984Google Scholar
  7. 7.
    Stölken J S, Evans A G. A microbend test method for measuring the plasticity length scale. Acta Mater, 1998, 46: 5109–5115CrossRefGoogle Scholar
  8. 8.
    Mishnaevsky Jr L. Computational Mesomechanics of Composites. Chichester: John Wiley & Sons, 2007Google Scholar
  9. 9.
    Feih S, Thraner A, Lilholt H. Tensile strength and fracture surface characterisation of sized and unsized glass fibers. J Mater Sci, 2005, 40: 1615–1623CrossRefGoogle Scholar
  10. 10.
    Gibson R F. Dynamic mechanical behavior of fiber-reinforced composites: Measurement and analysis. J Compos Mater, 1976, 10: 325–341CrossRefGoogle Scholar
  11. 11.
    Tevet-Deree L. The Dynamic Response of Composite Materials with viscoelastic constituents. Master Thesis. Hong Kong: Bakke Graduate University, 2003Google Scholar
  12. 12.
    dos Reis J M L. Mechanical characterization of fiber reinforced polymer concrete. J Mater Res, 2005, 8: 357–360Google Scholar

Copyright information

© Science in China Press and Springer Berlin Heidelberg 2010

Authors and Affiliations

  • HongWei Zhou
    • 1
  • L. MishnaevskyJr
    • 2
  • P. Brøndsted
    • 2
  • JinBiao Tan
    • 1
  • LeLe Gui
    • 1
  1. 1.State Key Laboratory of Coal Resources and Safe MiningChina University of Mining and Technology (Beijing)BeijingChina
  2. 2.Risø National Laboratory for Sustainable EnergyDTU, AFM-228RoskildeDenmark

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