Abstract
Experimental evaluations of interlaminar tensile strength for stitched CFRP curved panels were carried out. Vectran^[○!R] fiber with 200 denier was used as stitch thread. L-shape specimens were loaded by four point bending test, and interlaminar tensile strength was measured. Interlaminar tensile strength of stitched specimens show significant increment compared to those of unstitched one. The fracture behavior of stitched specimens were examined by cross sectional observation. Almost all of the stitch threads were not broken. Stitching process sufficiently improve the interlaminar tensile strength.
