2 research outputs found
Effect of Volume Fraction and Fiber Distribution on Stress Transfer in a Stochastic Framework of Continuous Fiber Composite: A Micromechanical Study
In fiber Reinforced Composites (FRC) fiber breakage is a common phenomenon
resulting in stress concentration. This high stress gets transfer in the
vicinity of the breakage which is quantified by Stress Transfer Coefficient
(STC). In this paper, an attempt is made to check the effect of fiber volume
fraction and the distribution of the fibers on STC and ineffective length. The
fiber volume fraction is changed considering three cases: 1) by changing the
number of fibers, 2) by changing the dimension of the Represntative Volume
Element (RVE) and 3) by changing the fiber radius. Cases with change in
dimension of RVE and change in fiber radius, periodic and semi-random
arrangents of fibers are considered. From the analysis of 200 RVE's for each
volume fraction in random and semi-random arrangements, it is observed that the
distribution of STC does not follow any standard distribution, even if the
fiber arrangement follows the normal distribution. The fiber cross-sectional
dimension plays a critical role in regaining the broken fiber strength. The
periodic arrangement of fibers can be said to be beneficial over the random
arrangement considering the stress transfer from the broken fiber
Supplemental Material - Mapping complete eigensolution space for the analysis of stress transfer in and around the broken fiber: A variational principle based approach
Supplemental Material for Mapping complete eigensolution space for the analysis of stress transfer in and around the broken fiber: A variational principle based approach by Ajinkya V Sirsat and Srikant S Padhee in Journal of Composite Materials</p