公开(公告)号：ES2020516B3

公开(公告)日：1991-08-16

申请号：ES86402781

申请日：1986-12-12

Applicant: AEROSPATIALE

Inventor： GRANDPIERRE LOIC ,  MOLINE AUGUSTIN

IPC: G01L1/22 ,  G01M99/00 ,  G01N27/20

公开(公告)号：CA1257700A

公开(公告)日：1989-07-18

申请号：CA525431

申请日：1986-12-16

Applicant: AEROSPATIALE

Inventor： GRANDPIERRE LOIC ,  MOLINE AUGUSTIN

IPC: G01L1/22 ,  G01M99/00 ,  G01N27/20

Abstract: Un système de surveillance de la fatigue d'éléments de structure soumis à des contraintes, permettant de contrôler l'apparition et la propagation de fissures dans des structures fortement sollicitées, notamment la peau d'un aéronef. Ce système permet l'utilisation de capteurs non destructifs de contrôle de fissures, du type jauges de contrainte, qui soient robustes et fiables, tout en ne nécessitant aucune intervention humaine particulière. Le système serait intégré à un calculateur électronique.

公开(公告)号：DE3677747D1

公开(公告)日：1991-04-04

申请号：DE3677747

申请日：1986-12-12

Applicant: AEROSPATIALE

Inventor： GRANDPIERRE LOIC ,  MOLINE AUGUSTIN

IPC: G01L1/22 ,  G01M99/00 ,  G01N27/20

Abstract: Method and system for monitoring cracks liable to appear and/or to grow in one point of a loaded structure. According to the invention, a theoretical increase of the length of the crack is cumulatively calculated, as and when the stresses are exerted, from said initial length, so as to determine an instant theoretical crack length; said instant theoretical length is permanently compared to said maximum acceptable length, and said point is inspected as soon as said instant theoretical length reaches said maximum acceptable length.

公开(公告)号：FR2591742B1

公开(公告)日：1988-03-25

申请号：FR8518601

申请日：1985-12-16

Applicant: AEROSPATIALE

Inventor： GRANDPIERRE LOIC ,  MOLINE AUGUSTIN

IPC: G01L1/22 ,  G01M99/00 ,  G01N27/20 ,  G01M5/00 ,  G01M9/00 ,  G01B7/18

Abstract: Method and system for monitoring cracks liable to appear and/or to grow in one point of a loaded structure. According to the invention, a theoretical increase of the length of the crack is cumulatively calculated, as and when the stresses are exerted, from said initial length, so as to determine an instant theoretical crack length; said instant theoretical length is permanently compared to said maximum acceptable length, and said point is inspected as soon as said instant theoretical length reaches said maximum acceptable length.

公开(公告)号：FR2591742A1

公开(公告)日：1987-06-19

申请号：FR8518601

申请日：1985-12-16

Applicant: AEROSPATIALE

Inventor： GRANDPIERRE LOIC ,  MOLINE AUGUSTIN

IPC: G01L1/22 ,  G01M99/00 ,  G01N27/20 ,  G01M5/00 ,  G01M9/00 ,  G01B7/18

Abstract: Method and system for monitoring cracks liable to appear and/or to grow in one point of a loaded structure. According to the invention, a theoretical increase of the length of the crack is cumulatively calculated, as and when the stresses are exerted, from said initial length, so as to determine an instant theoretical crack length; said instant theoretical length is permanently compared to said maximum acceptable length, and said point is inspected as soon as said instant theoretical length reaches said maximum acceptable length.