Conclusions
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1.
The character of deformation and fracture of carbon-plastic is qualitatively different for different modes of reinforcement.
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2.
The stress-strain curves of a laminated angle-ply carbon-plastic with angles of reinforcement close to±45° are quite nonlinear in uniaxial tension. Longitudinal specimen strain at fracture amounts to ≈ 8–9%.
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3.
The phenomenon of residual plasticity was observed in angle-ply carbon-plastic with fibers laid at angles close to±45°.
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4.
The presence of several loading-unloading cycles has almost no effect on the appearance of the stress-strain curve of the carbon-plastic outside of these cycles.
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5.
The area of the hysteresis loop, magnitude of plastic strain, and average elastic modulus of the loading- unloading cycle depend considerably on the initial stress level and mode of reinforcement of the material.
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Translated from Mekhanika Kompozitnykh Materialov, No. 2, pp. 241–245, March–April, 1980.
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Zinov'ev, P.A., Pesoshnikov, E.M., Popov, B.G. et al. Experimental study of certain features of the deformation and fracture of a laminated carbon-plastic. Mech Compos Mater 16, 174–179 (1980). https://doi.org/10.1007/BF00603928
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DOI: https://doi.org/10.1007/BF00603928