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The influence of dimensional and structural shifts of the elastic constant values in cylinder fiber composites

A. MODREA1, S. VLASE2, M. R. CALIN3, A. PETERLICEAN1

Affiliation

  1. Petru Maior University of Târgu Mures, Nicolae Iorga Str. No. 1, 540088, Târgu Mures, Romania
  2. Transilvania University of Brasov, Department of Mechanics, 29 Eroilor Blvd, 500036, Brasov, Romania
  3. „Horia Hulubei” National Institute for Physics and Nuclear Engineering-IFIN-HH, P.O. Box MG-6, 077125, Magurele, Romania

Abstract

The paper analyses the main dimensional and structural shifts that appear in fiber-reinforced composites. Long, aligned fibers are considered to be made up of upright circular cylinders in a regular network. In fact, this arrangement is purely theoretical and impossible to achieve in practice. Dimensional and structural inconsistencies can appear due to the fact that fibers cannot be placed at equal distances, cannot be parallel and layers cannot be placed at equal distances. The paper presents the determination of shifts from theoretical formulae in the structure of composites..

Keywords

fiber-reinforced composites, structural deviations, elastic constants, rule of mixtures, Poisson ratio.

Submitted at: March 2, 2012
Accepted at: April 11, 2013

Citation

A. MODREA, S. VLASE, M. R. CALIN, A. PETERLICEAN, The influence of dimensional and structural shifts of the elastic constant values in cylinder fiber composites, Journal of Optoelectronics and Advanced Materials Vol. 15, Iss. 3-4, pp. 278-283 (2013)