Abstract
Two series of thermotropic liquid crystalline copolyesters were studied in static and dynamic tensile deformation. Static loading generally does not lead to any peculiar phenomena: the stress-strain diagrams are linear or convex, except one copolyester fibre, the stress-strain diagram of which is concave at high temperatures. On the contrary, in dynamic loading the elasticity modulus increased during deformation for all the samples investigated. So it can be assumed that formation of a more rigid and stable structure takes place due to the dynamic deformation.
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S. E. Kudryavtseva and V. V. Kouriga, “Self-reinforcement of liquid-crystal polymers at static and dynamic loading,” Mechanics of Composite Materials,30, No. 4, 313–317 (1994).
S. E. Kudryavtseva and V. V. Kovriga, “Specific features of deformation of polymers producing liquid-crystalline phase,” Polymer Sci., Ser. A,37, No. 4, 421–425 (1995).
S. E. Kudryavtseva, E. V. Samardukov, and V. V. Kovriga, “Deformation of self-reinforced polymers in weak mechanical fields during heating,” Mechanics of Composite Materials,31, No. 1, 7–10 (1995).
S. E. Kudryavtseva, “Ther momechanical behaviour of liqquid-crystal polyesters,” Mechanics of Composite Materials,32, No. 1, 71–76 (1996).
E. M. Antipov, I. A. Volegova, Yu. K. Godovsky, S. E. Kudryavtseeva, and D. O. Zhubov, “Phase and relaxation transitions of the thermotropic liquid crystalline copolyester Ultrax,” Polymer Sci. Ser. A, 1997,39 (in press).
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Published in Mekhanika Kompozitnykh Materialov, Vol. 33, No. 5, pp. 704–709, September–October, 1997.
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Kudryavtseva, S.E., Abetz, V. Static and dynamic elasticity of some thermotropic liquid-crystalline copolyesters. Mech Compos Mater 33, 500–503 (1997). https://doi.org/10.1007/BF02256906
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DOI: https://doi.org/10.1007/BF02256906