Abstract
The shear strength of unidirectional epoxypolysulfone glass-reinforced plastics in the range of six decimal orders of loading rates has been measured. ED-22 epoxydiane resin (analog of DGEBA) modified by PSK-1 aromatic polysulfone served as a matrix. It has been shown that the strength values linearly increase with increasing logarithm of the loading rate; the sensitivity of composites to the rate of application of a force increases with increasing quantity of PSK-1 introduced into the matrix, and the fracture mechanism of composites is the thermofluctuation one. The laws revealed do not differ from those established by us earlier for glass-reinforced plastics based on epoxy binders modified by active diluents.
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Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 78, No. 5, pp. 48–54, September–October, 2005.
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Gorbatkina, Y.A., Solodilov, V.I., Kuperman, A.M. et al. Shear strength of epoxypolysulfone glass-reinforced plastics in a wide range of loading rates. J Eng Phys Thermophys 78, 885–891 (2005). https://doi.org/10.1007/s10891-006-0008-2
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DOI: https://doi.org/10.1007/s10891-006-0008-2