Abstract
The effect of prestressing the reinforcing fibers in either of two mutually perpendicular directions on the elastic characteristics of woven-glass reinforced plastics has been experimentally investigated. It is shown that an increase in the elastic characteristics in the prestress direction is accompanied by a decrease in the direction at right angles. Applying the same prestress in both directions considerably improves the moduli of elasticity (Ex, Ey). The possibility of using Bolotin's theory [1] and the relations proposed in [4, 6] to estimate the effect of regular distortions of the fibers on the elastic moduli of woven-glass reinforced materials is examined.
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Literature cited
V. V. Bolotin, Mekh. polim., No. 1, 11, 1966.
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I. G. Zhigun, Mekh. polim., No. 5, 888, 1967.
Yu. M. Tarnopol'skii, G. G. Portnov, and I. G. Zhigun, Mekh. polim., No. 2, 243, 1967.
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Z. P. Bazhant, Mekh. polim., No. 2, 314, 1968.
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Institute of Polymer Mechanics, Academy of Sciences of the Latvian SSR, Riga. Translated from Mekhanika Polimerov, Vol. 4, No. 5, pp. 859–863, September–October, 1968.
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Zhigun, I.G. Experimental evaluation of the effect of prestressing the fibers in two directions on certain elastic characteristic of woven-glass reinforced plastics. Polymer Mechanics 4, 691–695 (1968). https://doi.org/10.1007/BF00855802
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DOI: https://doi.org/10.1007/BF00855802