Skip to main content Accessibility help
×
Home

Do Natural Silks Make Good Engineering Materials?

  • Natalie A. Morrison (a1), Fraser I. Bell (a1), Alexandre Beautrait (a1), Joanne Ritchie (a1), Christopher Smith (a1), Iain J. McEwen (a1) and Christopher Viney (a2) (a1)...

Abstract

Fast relaxation of stresses lower than the yield stress is demonstrated in Bombyx mori(silkworm) cocoon silk and Nephila clavipes (spider) major ampullate silk (MAS; dragline). Stress relaxation and creep make natural silk unsuitable as a long-term load-bearing material. Instead, silk-like materials are better suited to applications in which energy dissipation is important, and in which high loads need to be withstood on a once-off basis for only very short periods of time. Examples might include use as a ballistic material that arrests the penetration of fragments from the explosion of a pressure vessel, an aircraft luggage container, or a tyre. Treatment in a domestic microwave oven is shown to significantly reduce the rate of stress relaxation in both silkworm cocoon and spider MAS. Except for ductility, the tensile properties of cocoon silk measured in constant strain rate experiments are enhanced by this treatment. Initial experiments on MAS suggest that the tensile properties of this material also are enhanced by exposure to microwaves, in this case with the exception of initial modulus.

Copyright

References

Hide All
1. Viney, C., in Structural Biological Materials, edited by Elices, M. (Pergamon / Elsevier Science, Oxford, 2000), pp. 293333.
2. Lazaris, A., Arcidiacono, S., Huang, Y., Zhou, J.F., Duguay, F., Chretien, N., Welsh, E.A., Soares, J.W., Karatzas, C.N., Science 295, 472 (2002).
3. Kubik, S., S., , Angew. Chem. Int. Ed. Engl. 41, 2721 (2002).
4. Bell, F.I., McEwen, I.J., Viney, C., Nature 416, 37 (2002).
5. Smith, C., Ritchie, J., Bell, F.I., McEwen, I.J., Viney, C., J. Arachnol. 31, 421 (2003).
6. Viney, C., Bell, F.I., Cur. Opin. Solid State Mater. Sci., in press (2004).
7. Work, R.W., Textile Res. J. 47, 650 (1977).
8. Watt, S.W., McEwen, I.J., Viney, C., Macromolecules 32, 8671 (1999).
9. Thiel, B., Kunkel, D., Guess, K., Viney, C., in Biomolecular Materials by Design, edited by Alper, M., Bayley, H., Kaplan, D., Navia, M., (Mater. Res. Soc. Proc. 330, Pittsburgh, PA, 1994)
10. Foelix, R.F., Biology of Spiders, 1st ed. (Harvard University Press, Cambridge, MA, 1982).
11. Carmichael, S., Viney, C., J. Appl. Polym. Sci. 72, 895 (1999).
12. Craven, J.P., Cripps, R., Viney, C., Comp. Part A: Appl. Sci. Manuf. 31, 653 (2000).
13. Pérez-Rigueiro, J., Viney, C., Llorca, J., Elices, J. M., J. Appl. Polym. Sci. 70, 2439 (1998).
14. Eles, P.T., Michal, C.A., Macromolecules 37, 1342 (2004).

Related content

Powered by UNSILO

Do Natural Silks Make Good Engineering Materials?

  • Natalie A. Morrison (a1), Fraser I. Bell (a1), Alexandre Beautrait (a1), Joanne Ritchie (a1), Christopher Smith (a1), Iain J. McEwen (a1) and Christopher Viney (a2) (a1)...

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed.