Abstract
A method is suggested for describing local long-term strength which is based on specific concepts about failure mechanisms of sterically cross-linked polymers. Microstructural characteristics of the material are used for a detailed description of the local failure process; from these one can go over to a damage macroparameter by use of the method proposed in [2]. A kinetic equation is obtained, from which simple formulas follow, for a number of cases, for determining time to failure as a function of the form of stressed state or the like. These formulas agree qualitatively with similar empirical relationships. A definition of the concept of local failure and a condition (criterion) for failure are given within the framework of the approach developed.
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Literature cited
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Additional information
A. A. Zhdanov Leningrad State University. Translated from Mekhanika Polimerov, No. 4, pp. 612–620, July–August, 1972.
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Ul'tan, V.E., Chebanov, V.M. & Chudnovskii, A.I. Failure of sterically cross-linked polymers. Polymer Mechanics 8, 528–535 (1972). https://doi.org/10.1007/BF00855577
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DOI: https://doi.org/10.1007/BF00855577