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Use of the method of mechanoluminescence to study the micromechanics of the cutting of polymer composites

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Mechanics of Composite Materials Aims and scope

Conclusions

  1. 1.

    The cutting of fibrous polymer composites is characterized by cyclic changes in mechanoluminescence and cutting force and is governed by the conditions of microcrack nucleation, growth, and coalescence (into a macrocrack) and the formation of new surfaces.

  2. 2.

    The frequency of alternation depends on cutting speed and the direction of reinforcement of the composite relative to the vector of the principal cutting motion.

  3. 3.

    The optimum conditions for machining fibrous polymer composites are as follows: high cutting speed (above 15 m/sec), which restricts the conditions for heating of the working zone; minimum cross-sectional area of the cut (commensurate with the transverse dimensions of the reinforcing fibers and strands).

  4. 4.

    The degree of degradation of the composite during machining is determined by the angle between the direction of the reinforcing elements and the direction of the vector of the principal cutting motion.

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Literature cited

  1. N. V. Verezub and S. N. Lavrinenko, "Aspects of the fracture of polymer composites during machining," Mekh. Kompozitn. Mater., No. 4, 741–743 (1984).

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  2. G. A. Teters, U. É. Krauya, R. B. Rikards, and Z. T. Upitis, "Study of the fracture of composites in a plane stress state by the method of mechanoluminescence," Ibid., No. 3, 537–545 (1982).

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  3. S. N. Lavrinenko, V. N. Verezub, and I. Pap, "Certain features of the fracture of polymer composites during cutting," Rezanie Instrum.,32, 15–18 (1984).

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Authors and Affiliations

  1. Kharkov Polytechnic Institute, USSR

    N. V. Verezub, U. É. Krauya, P. P. Kalnin' & S. N. Lavrinenko

  2. Institute of Polymer Mechanics, Latvian Academy of Sciences, Riga

    N. V. Verezub, U. É. Krauya, P. P. Kalnin' & S. N. Lavrinenko

Authors
  1. N. V. Verezub
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  2. U. É. Krauya
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  3. P. P. Kalnin'
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  4. S. N. Lavrinenko
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Additional information

Translated from Mekhanika Kompozitnykh Materialov, No. 2, pp. 296–301, March–April, 1991.

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Verezub, N.V., Krauya, U.É., Kalnin', P.P. et al. Use of the method of mechanoluminescence to study the micromechanics of the cutting of polymer composites. Mech Compos Mater 27, 207–211 (1991). https://doi.org/10.1007/BF00614740

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  • DOI: https://doi.org/10.1007/BF00614740

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