Conclusions
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1.
The degree of the irreversible and reversible decrease in the strength properties of a glass fiber-reinforced plastic on exposure to moisture at positive and negative temperatures is essentially a function of the features of the stressed state during mechanical tests.
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2.
A dependence correlating the long-term strength of the plastic in water with its residual strength in exposure in water in the unloaded state was established.
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Literature cited
R. J. White and R. G. Phillips, "Environmental stress-rupture mechanisms in glass fibre/ polyester laminates," Proc. 5th Intern. Conf. on Composite Materials (ICCM-5), San Diego, California (1985), pp. 1089–1099.
Water in Polymers [in Russian], Moscow (1984).
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Translated from Mekhanika Kompozitnykh Materialov, No. 2, pp. 292–295, March–April, 1991.
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Bulmanis, V.N., Popov, N.S. Short- and long-term strength of polyester glass-fiber-reinforced plastic on exposure to moisture. Mech Compos Mater 27, 204–207 (1991). https://doi.org/10.1007/BF00614739
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DOI: https://doi.org/10.1007/BF00614739