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Fracture Properties of Polymers at Cryogenic Temperatures

  • G. Hartwig
  • T. Saatkamp
Part of the An International Cryogenic Materials Conference Publication book series (ACRE, volume 40)

Abstract

The cryogenic fracture behavior has been investigated on several thermo — plastic polymers: HDPE, PS and PC. The stress intensity factor and the critical energy release rate have been measured as a function of the deformation rate at 4.2 K and 77 K. Due to the brittleness of polymers at low temperatures almost unstable crack propagation has been observed even at extremely low deformation rates. The crack propagation is discontinuous. Crack arrest occurs by adiabatic heating of the crack tip.

Keywords

Stress Intensity Factor Plastic Zone Linear Elastic Fracture Mechanic Crack Arrest Adiabatic Heating 
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.

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References

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    T. Saatkamp, G. Hartwig; Cryogenics 31 (1991) pp. 234–237.CrossRefGoogle Scholar
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Copyright information

© Springer Science+Business Media New York 1994

Authors and Affiliations

  • G. Hartwig
    • 1
  • T. Saatkamp
    • 2
  1. 1.Kernforschungszentrum KarlsruheInstitute of Material Research IIKarlsruheGermany
  2. 2.Now with ContiTech. Holding GmbHHannoverGermany

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