The Boeing Company

Joshua Shane Dustin

Jack J Esposito

Alan W Baker

One example of the present disclosure relates to a coupon. The coupon includes a first surface with a first circular channel and a second surface opposite and parallel to the first surface. The second surface is spaced a distance Dfrom the first surface and includes a second circular channel concentric with the first circular channel. The coupon also includes a toroidal portion between the first circular channel and the second circular channel. The toroidal portion includes a rectangular sectional portion.

Flatwise material coupon

Strength testing of a flatwise material coupon

A particular composite test specimen includes a first tab, a second tab, and a gage section between the first tab and the second tab. The first tab, the second tab, and the gage section are machined from a composite test blank. The composite test blank includes a plurality of plies arranged with first ply layers having fibers oriented in a first direction and second ply layers having fibers oriented in a second direction, where the first direction is different than the second direction.

Growing community of inventors

Maple Valley, WA, United States of America

Joshua Shane Dustin