Abstract
Tensile tests are conducted on stitched and unstitched uniweave T300/QY9512 laminates (with a hole) in hygrothermal environment and normal environment. It is shown that in a normal environment stitching reduces the tensile strength of laminates and does not significantly alter the open-hole tensile strength. The hygrothermal environment has a beneficial effect on the tensile strength of laminates and open-hole laminates, especially of stitched specimens. It is also noted that stitching direction has no effect on the tensile properties.
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