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The mechanical behaviour of particle composites in the presence of shrinkage stresses

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  • Polymer Science
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Summary

The effect of shrinkage stresses on the mechanical behaviour of particle composites was investigated. By means of analytical expressions, actual systems were considered, and the effect of the various parameters was studied. Energy considerations were applied to determine an “equivalent” bulk modulus, accounting also for the additional strain energy introduced into the composite upon loading, due to shrinkage. This is a useful parameter for the investigation of the conditions under which cracking or fracture of the composite may occur, as result of the combined action of applied and residual stress fields.

Zusammenfassung

Es wurde der Einfluß von Schrumpfspannungen auf das mechanische Verhalten von Partikeln mit verstärkten Mischkörpern untersucht. Mittels analytischen Ausdrücken wurden wirkliche Systeme behandelt und der Einfluß der verschiedenen Parameter untersucht. Durch Energiebetrachtungen wurde ein Vergleichsmodul bestimmt, der auch für die Verformungsarbeit maßgebend ist, die durch Schrumpfspannungen in den belasteten Mischkörper eingeführt wird. Dies stellt einen Parameter dar, der nützlich für die Untersuchung der Bedingungen ist, unter denen Reißen oder Bruch des Mischkörpers aus der kombinierten Wirkung von ausgeübten und bleibenden Spannungsfeldern auftreten kann.

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Authors and Affiliations

  1. Department of Civil Engineering, National Technical University of Athens, Athens, Greece

    S. A. Paipetis

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  1. S. A. Paipetis
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With 5 figures and 2 tables

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Paipetis, S.A. The mechanical behaviour of particle composites in the presence of shrinkage stresses. Colloid & Polymer Sci 257, 934–941 (1979). https://doi.org/10.1007/BF01520717

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  • DOI: https://doi.org/10.1007/BF01520717

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