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A more precise definition of the method of determining the fatigue life of polymer materials from the reheat temperature

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Conclusions

1. The rate of increase in the reheat temperature on the linear segment remains constant (for a periodic loading with higher stress levels) until a critical damage is sustained for the stress in question.

2. The magnitude of Tc for a given stress is independent of the loading history, provided the critical damage has not been sustained for this stress.

3. With decreasing stress Tc decreases slightly. A method for the accelerated determination of Tc from a single specimen for different stress levels has been developed.

4. A method of predicting the fatigue life from the results of short-term tests, which take into account the variation of Tc due to stress level, has been developed.

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Literature cited

  1. V. P. Tamuzh, “Behavior of rigid polymer materials subjected to cyclic loading. Review” Mekh. Polim., No. 1, 97–107 (1969).

  2. P. P. Oldvrev. “The reheat temperature and failure of plastics subject to cyclic deformation” Mekh. Polim., No. 3, 483–492 (1967).

  3. P. P. Oldyrev and V. P. Tamuzh, “Variation of the properties of glass textolite subject to cyclic stress reversal” Mekh. Polim., No. 5, 864–872 (1967).

  4. P. P. Oldyrev, “Determining the fatigue life of plastics from the self-reheat temperature” Mekh. Polim., No. 1, 111–117 (1967).

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  6. M. É. Garf and M. Ya. Filatov, “A machine for the programmed fatigue testing of materials in pure bending” Probl. Prochn., No. 9, 102–106 (1975).

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Authors
  1. P. P. Oldyrev
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  2. V. M. Parfeev
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  3. V. I. Komar
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Additional information

Institute of Polymer Mechanics, Academy of Sciences of the Latvian SSR, Riga. Translated from Mekhanika Polimerov, No. 5, pp. 906–913, September–October, 1977.

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Oldyrev, P.P., Parfeev, V.M. & Komar, V.I. A more precise definition of the method of determining the fatigue life of polymer materials from the reheat temperature. Polymer Mechanics 13, 762–768 (1977). https://doi.org/10.1007/BF00860333

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  • DOI: https://doi.org/10.1007/BF00860333

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