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Analysis of stress relaxation processes in conveyor belts

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Mechanics of Composite Materials Aims and scope

Conclusions

  1. 1.

    When optimizing the composition of a layered composite in the form of conveyor belt as to its strength characteristics, an additional parameter, i.e., a time factor, should be taken into consideration. By the application of linear viscoelasticity methods, it is possible to predict the belt behavior under the determined stress-time conditions. Boundary relaxation stresses σi for a given type of belt and conveyor should be specified together with other performance parameters.

  2. 2.

    For all types of conveyor belts tested, the largest relaxation changes occur at the initial stage of start-up and during the steady motion of the belt (up to approx. 1 h). Later stresses in conveyor belts vary very slowly.

  3. 3.

    Rubber conveyor belts do not have worse relaxation characteristics than the PVC type ones. Four-layer rubber belts are characterized by the highest stress stability within the belt operation load range.

  4. 4.

    Well-known methods used for analysis of stress relaxation processes in polymer composites can find application to computations of stress relaxation characteristics of conveyor belts.

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References

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Authors and Affiliations

  1. Central Mining Institute, Katowice, Poland

    K. Czaplicka

Authors
  1. K. Czaplicka
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Additional information

Published in Mekhanika Kompozitnykh Materialov, Vol. 30, No. 4, pp. 562–567, July–August, 1994.

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Czaplicka, K. Analysis of stress relaxation processes in conveyor belts. Mechanics of Composite Materials 30, 411–415 (1995). https://doi.org/10.1007/BF00634768

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  • DOI: https://doi.org/10.1007/BF00634768

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