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T. V. Brantseva A. V. Antonov Yu. A. Gorbatkina M. L. Kerber T. P. Kravchenko A. A. Rybin 《Mechanics of Composite Materials》1999,35(6):453-460
A new device for studying the dynamic adhesive strength is created. A procedure for determining the dynamic adhesive strength in fiber—polymer systems under impact loading (pull-out technique) is developed. The adhesive strength of the interface of polymer—steel wire joints formed by polymers of different chemical nature (epoxy resin, polysulfone, and polypropylene) is examined. It is shown that the dynamic adhesive strength grows as the loading rate increases for all the systems under investigation and that the relationship between the adhesive strength and the loading rate,
, over a wide range of rates can be described by two straight lines corresponding to the quasi-static and impact loading, respectively. When passing from the quasi-static to dynamic loading, the character of scale relations of the adhesive strength does not change.Translated from Mekhanika Kompozitnykh Materialov, Vol. 35, No. 6, pp. 689–700, November–December, 1999. 相似文献
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The concentration dependence of the adhesive strength in joints of soot-filled epoxides with fibers was investigated. It was shown that this dependence is described by the curve with maximum observed at 2 wt % of soot. Modifying the epoxy resin with soots results in an increase in the interface strength by 20–30%. 相似文献
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Adhesive ability of a heat-resistant double-chain polymer and the strength of CFRP based on it 总被引:1,自引:0,他引:1
Yu. A. Gorbatkina V. G. Ivanova-Mumjieva A. M. Kuperman I. I. Ponomarev V. I. Sidorenko 《Mechanics of Composite Materials》2008,44(4):371-378
The adhesive ability of a heat-resistant polyiminoquinazolindione (PIQD) binder, based on a double-chain polymer, and the
physicomechanical characteristics of unidirectional CFRPs made with it are investigated. It is shown that, at room temperature,
the strength of model adhesive joints (PIQD-steel wire) and of the CFRPs in shear and bending is rather low — about half of
that of similar specimens based on an epoxy binder. At the same time, all their mechanical characteristics, to a large measure
(50%), are retained at temperatures up to 450°C, which considerably exceeds the heat resistance of all polymer matrices used
at the present time. The elastic modulus of the CFRPs in bending practically remains the same up to 450°C.
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Translated from Mekhanika Kompozitnykh Materialov, Vol. 44, No. 4, pp. 535–546, July–August, 2008. 相似文献
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The mechanical properties of unidirectional GFRPs based on an ED-22 epoxy resin were investigated. The resin was modified
with a PSK-1 polysulphone or a PEF-3a epoxyurethane oligomer. Triethanolaminotitanate or diaminodiphenilsulphone was used
as a hardener. The modification did not improve the mechanical properties of GFRPs in quasi-static loading; but in a low-speed
impact loading, the shear strength of epoxypolysulphone GFRPs with 20 wt.% PSK-1 increased by 20–25%. For all the GFRPs investigated,
the shear strength grew linearly with the logarithm of loading rate. The introduction of the modifiers increased the fracture
toughness considerably: by 100 and 70% for GFRPs modified with 20 wt.% PSK-1 and 50 wt.% PEF-3a, respectively.
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Translated from Mekhanika Kompozitnykh Materialov, Vol. 42, No. 6, pp.739–758, November–December, 2006. 相似文献
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Solodilov V. I. Gorbatkina Y. A. Kuperman A. M. 《Mechanics of Composite Materials》2003,39(6):493-502
The influence of an active diluent on the properties of an epoxy matrix and carbon-fiber-reinforced plastics (CFRP) is investigated. The physicomechanical properties of an ED-20 epoxy resin modified with diglycidyl ether of diethylene glycol (DEG-1), the adhesion strength at the epoxy matrix–steel wire interface, and the mechanical properties of unidirectional CFRP are determined. The concentration of DEG-1 was varied from 0 to 50 wt.%. The properties of the matrix, the interface, and the composites are compared. It is stated that the matrix strength affects the strength of unidirectional CFRP in bending and not their strength in tension, compression, and shear. The latter fact seems somewhat unexpected. The interlaminar fracture toughness of the composites investigated correlates with the ultimate elongation of the binder. A comparison between the concentration dependences of adhesion strength and the strength of CFRP shows that the matrices utilized provide such a high interfacial strength that the strength of CFRP no longer depends on the adhesion of its constituents. 相似文献
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G. D. Andreevskaya Yu. A. Gorbatkina A. V. Zamotova R. L. Kiseleva T. V. Odnoletkova R. Ya. Khvilivitskii 《Mechanics of Composite Materials》1965,1(1):68-71
The adhesion of an epoxy-polyester resin to glass fibers with clean and modified surfaces has been determined. The effect of this adhesion on some of the properties of glass-reinforced plastics (bending, tension, shear) is investigated.Mekhanika polimerov, Vol. 1, No. 1, pp. 93–99, 1965 相似文献