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.
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References
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© 1994 Springer Science+Business Media New York
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Hartwig, G., Saatkamp, T. (1994). Fracture Properties of Polymers at Cryogenic Temperatures. In: Reed, R.P., Fickett, F.R., Summers, L.T., Stieg, M. (eds) Advances in Cryogenic Engineering Materials . An International Cryogenic Materials Conference Publication, vol 40. Springer, Boston, MA. https://doi.org/10.1007/978-1-4757-9053-5_142
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DOI: https://doi.org/10.1007/978-1-4757-9053-5_142
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