US 12,146,738 B2
Device for checking armor
Vincent Gleize, Robion (FR); Alexane Margossian, Pernes-les-Fontaines (FR); Matthieu Graveleau, Avignon (FR); and Mickael Boinet, Maubec (FR)
Assigned to SAINT-GOBAIN CENTRE DE RECHERCHES ET D'ETUDES EUROPEEN, Courbevoie (FR)
Appl. No. 17/784,920
Filed by SAINT-GOBAIN CENTRE DE RECHERCHES ET D'ETUDES EUROPEEN, Courbevoie (FR)
PCT Filed Dec. 10, 2020, PCT No. PCT/EP2020/085638
§ 371(c)(1), (2) Date Jun. 13, 2022,
PCT Pub. No. WO2021/116349, PCT Pub. Date Jun. 17, 2021.
Claims priority of application No. 1914138 (FR), filed on Dec. 11, 2019.
Prior Publication US 2023/0011664 A1, Jan. 12, 2023
Int. Cl. G01B 7/16 (2006.01); F41H 1/02 (2006.01); F41H 5/04 (2006.01); G01L 1/06 (2006.01); G01L 1/22 (2006.01); G01L 5/00 (2006.01); F41J 5/04 (2006.01)
CPC G01B 7/18 (2013.01) [F41H 1/02 (2013.01); F41H 5/04 (2013.01); G01L 1/06 (2013.01); G01L 1/22 (2013.01); G01L 1/2287 (2013.01); G01L 5/0052 (2013.01); F41J 5/04 (2013.01)] 23 Claims
OG exemplary drawing
 
1. A device including:
a piece of armor, and
a deformation sensor fixed to the piece of armor and configured to deform under the effect of a stress Ca applied to the piece of armor,
elastically when the applied stress Ca is less than or equal to a threshold stress Cs, and plastically when the applied stress Ca is greater than the threshold stress Cs,
the threshold stress being such that Cs<Cemin,
Cemin being a minimum damaging stress for the piece of armor.