Advertisement

Journal of Materials Science

, Volume 13, Issue 7, pp 1521–1537 | Cite as

Evaluation of biaxial stress failure surfaces for a glass fabric reinforced polyester resin under static and fatigue loading

  • M. J. Owen
  • J. R. Griffiths
Papers

Abstract

In an attempt to evaluate failure theories for a glass fabric reinforced polyester resin over 370 tests have been conducted on thin-walled tubes under combined axial loading and internal pressure, both for static and fatigue loading. For plane stress the results are considered in relation to imaginary failure surfaces inσ1,σ2,σ6 space. A limited measure of agreement between theories and results can be obtained after highly subjective selection of data. Only those theories which involve complex stress properties provide a reasonable fit. The behaviour of tubular specimens is strongly influenced by the presence of joints in the reinforcements.

Keywords

Polymer Fatigue Internal Pressure Axial Loading Plane Stress 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Nomenclature

σx,σy

nominal hoop and axial (principal) stresses in a thin-walled tube

σ1,σ2,σ6

normal and shear stresses in the direction of the principal material axes

F1,F2,F6

strengths in the principal material directions and the in-plane shear strength

F1t,F2t

tensile strengths in the principal material directions

F1c,F2c

compressive strengths in the principal material directions

K2

a constant evaluated from a combined stress test

H12

normal stress interaction component of a strength tensor

α

off-axis angle

S-N curve

conventional stress-log life fatigue curve

R

principal stress ratio,σ y /gs x

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    M. J. Owen andM. S. Found,J. Phys. D 8 (1975) 480.Google Scholar
  2. 2.
    J. R. Griffiths, Ph.D. Thesis, University of Nottingham (1974).Google Scholar
  3. 3.
    G. J. Schneider,Fibre Sci. Tech. 5 (1972) 29.Google Scholar
  4. 4.
    B. R. Collins andR. L. Crane,J. Composite Mater. 5 (1971) 408.Google Scholar
  5. 5.
    E. M. Wu,ibid. 6 (1972) 472.Google Scholar
  6. 6.
    M. J. Owen andM. S. Found, Faraday Special Discussions of the Chemical Society, No. 2 (1972) 77.Google Scholar
  7. 7.
    M. J. Owen, J. R. Griffiths andM. S. Found, Proceedings of the 1975 International Conference on Composite Materials, Vol. 2 (Metals Society of the AIME, New York, 1976) pp. 917–941.Google Scholar
  8. 8.
    E. Z. Stowell andT. S. Liu,J. Mech. Phys. Solids 9 (1961) 242.Google Scholar
  9. 9.
    M. E. Waddoups, General Dynamics Fort Worth Division, Report F2M 4763 (1967).Google Scholar
  10. 10.
    R. Hill,Proc. Roy. Soc. A 193 (1948) 281.Google Scholar
  11. 11.
    V. D. Azzi andS. W. Tsai,Exptl. Mech. 5 (1965) 283.Google Scholar
  12. 12.
    C. B. Norris andP. F. McKinnon, US Forest Products Lab. Report 1328 (1956).Google Scholar
  13. 13.
    Idem, US Forest Products Lab. Report 1816 (1962).Google Scholar
  14. 14.
    O. Hoffman,J. Composite Mater. 1 (1967) 200.Google Scholar
  15. 15.
    H. G. Franklin,Fibre Sci. Tech. 1 (1968) 137–50.Google Scholar
  16. 16.
    I. I. Goldenblat andV. A. Kopnov,Polymer Mech. 1 (1965) 54.Google Scholar
  17. 17.
    S. W. Tsai andE. M. Wu,J. Composite Mater. 5 (1971) 58.Google Scholar
  18. 18.
    E. K. Ashkenazi,Mekhanika Polimerov 1 (1965) 79.Google Scholar
  19. 19.
    R. B. Pipes andB. W. Cole,J. Composite Mater. 7 (1973) 246.Google Scholar
  20. 20.
    M. J. Owen,J. Plast. Inst. 35 (1967) 353.Google Scholar
  21. 21.
    M. S. Found, Ph.D. Thesis, University of Nottingham (1972).Google Scholar
  22. 22.
    M. J. Owen,Composites 1 (1970) 346.Google Scholar
  23. 23.
    N. J. Pagano andJ. M. Whitney,J. Composite Mater. 4 (1970) 360.Google Scholar
  24. 24.
    J. J. Lucas andJ. B. Sainsbury-Carter,J. Mater., JMLSA 4 (1972) 586.Google Scholar
  25. 25.
    T. Priddy,Trans. ASME 96 (1974) 91.Google Scholar

Copyright information

© Chapman and Hall Ltd. 1978

Authors and Affiliations

  • M. J. Owen
    • 1
  • J. R. Griffiths
    • 1
  1. 1.Department of Mechanical EngineeringUniversity of NottinghamUniversity ParkUK

Personalised recommendations