Figure 6
From: On the detection of carbon fibre storage contamination and its effect on the fibre–matrix interface

Overall view (left) and fibre break point (right) of the birefringent stress patterns observed for single fibre composites (a) CF from spool (b) CF in bag 6 months (c) CF from spool, DCM rinsed and (d) CF in bag 6 months, DCM rinsed.