Safran Aircraft Engines

Léa Gani

Alain Timon

Thibault Berranger

Pascal Noël Brossier

Emmanuel Chichery

A coupon suitable for peeling tests, derived from a vane and including: (i) a portion of blade that comprises an intrados surface, an extrados surface and a leading edge and/or trailing edge and (ii) a vane reinforcement that covers and is glued to at least a part of the intrados surface, a part of the extrados surface and which extends beyond the leading and/or trailing edge. The reinforcement is split over the entire length of the leading edge and/or trailing edge such that the reinforcement is separated into two plates separate from one another and facing each other on either side of the slit beyond the leading and/or trailing edge. Furthermore, at least one of the plates furthermore comprises, beyond the leading and/or trailing edge, notches configured to provide a hold to this same plate.

Peeling test coupon

A device to test the peeling resistance of coupons, each formed of a support and an adhesive, includes: (i) a frame including rollers with parallel axes designed to maintain the coupon supported while guiding movement of the latter, (ii) a traction device including a vertical jack linked to an attachment element including a loop configured in order to cause detachment of the adhesive from the surface of the support, (iii) a device for measuring the force exerted by the jack in order to pull the loop during peeling, and (iv) a coupon, complex in shape, such as one derived from a reinforced vane. At least one roller is translationally adjustable in relation to other rollers and the coupon is specially prepared in order to facilitate carrying out the tests.

Growing community of inventors

Moissy-Cramayel, France

Léa Gani