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Journal of Materials Science

, Volume 43, Issue 22, pp 7091–7101 | Cite as

Visco-elasticity of aramid fibres

  • C. J. BurgoyneEmail author
  • K. G. N. C. Alwis
Article

Abstract

Tests are described to measure the creep and relaxation response of aramid fibres with the specific aim of determining whether the visco-elastic response is linear or non-linear. Hitherto, creep and relaxation tests have been carried out in different circumstances and at different loads, which has led to disagreement about the type of response that aramid fibres exhibit. Tests are carried out at stresses between 10% and 80% of the short-term strength of the fibres under controlled temperature and humidity conditions, and it is shown that both creep and relaxation are non-linear at stresses below 40% of the breaking load, but both are linear at stresses above this level. This result explains the contradictions in earlier work and also indicates that there may be two different processes underway in the visco-elasticity of aramids.

Keywords

Creep Strain Creep Curve Relaxation Test Creep Compliance Aramid Fibre 

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Copyright information

© Springer Science+Business Media, LLC 2008

Authors and Affiliations

  1. 1.Department of EngineeringUniversity of CambridgeCambridgeUK
  2. 2.Highways and Transportation DeptAtkins, Woodcote GroveSurreyUK

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