The influence of geometrical discontinuities on the stress distribution is critical for
design applications. A novel type of composite, named glass-fiber-cotton
reinforced monomer casting nylon (GFCR MC-nylon), is prepared, and the
circular-hole stress concentration of a GFCR MC-nylon plate is investigated via the
digital image correlation technique (DIC). The experimental results show
that the stress concentration factor (SCF) of the composite varies with the
diameter of the circular hole and stress intensity. A novel finite element model is
established to investigate the influence of glass-fiber (GF) length on SCF. The
simulation results show high agreement with the experimental results. The
findings provide the basis for the structure design of fiber-cotton reinforced
composite.
Keywords
concentration, fiber-reinforced composite, digital image
correlation technique, simulation