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In fiber Reinforced Composites (FRC) fiber breakage is a common phenomenonresulting in stress concentration. This high stress gets transfer in thevicinity of the breakage which is quantified by Stress Transfer Coefficient(STC). In this paper, an attempt is made to check the effect of fiber volumefraction and the distribution of the fibers on STC and ineffective length. Thefiber volume fraction is changed considering three cases: 1) by changing thenumber of fibers, 2) by changing the dimension of the Represntative VolumeElement (RVE) and 3) by changing the fiber radius. Cases with change indimension of RVE and change in fiber radius, periodic and semi-randomarrangents of fibers are considered. From the analysis of 200 RVE's for eachvolume fraction in random and semi-random arrangements, it is observed that thedistribution of STC does not follow any standard distribution, even if thefiber arrangement follows the normal distribution. The fiber cross-sectionaldimension plays a critical role in regaining the broken fiber strength. Theperiodic arrangement of fibers can be said to be beneficial over the randomarrangement considering the stress transfer from the broken fiber.

Effect of Volume Fraction and Fiber Distribution on Stress Transfer in a Stochastic Framework of Continuous Fiber Composite: A Micromechanical Study