Aerospatiale Societe Nationale Industrielle

Societe Anonyme Dite: Aerospatiale Societe Nationale Industrielle

Societe Nationale Industrielle

Christian M Le Floc'H

Jean-Charles Anifrani

Daniel M Babot

Gilles G Peix

Francois Perrot

Didier Sornette

Pierre Sarrazin

Bernard Souillard

Method for predictive determination of load, simple or combined, at rupture, of a structure, which includes subjecting the structure to a stress which is equivalent to the load; recording acoustic activity generated by damages suffered in the structure, up until a pre-determined stress threshold; and determining the predictive value of the load at rupture using the recorded acoustic emission based on a relationship linking time to the load.

Method for the predictive determination of load of a structure at rupture

A method and a system for enabling high accuracy measurements to be obtained of the location of a plane separating two media of different densities by using the Compton effect, and application thereof to measuring the thicknesses of layers. A measurement assembly constituted by a transmitter and a receiver of X-rays or gamma rays which are focused in emission and in reception irradiates an elementary volume of said media, and is displaced perpendicularly to the plane between said media, and a fifth signal is calculated representative of the extent by which the derivative of the detected signal relative to the displacement exceeds a threshold, after which the barycenter of displacements corresponding to the most recent sequence of said same-sign fifth signals is calculated, with the displacements being weighted by the corresponding one of said fifth signals.

Compton-effect method and system for locating a plane separating two

A device is disclosed for measuring the variation of the distance separating the two faces of a layer of solid material by means of ultrasounds, comprising:

Device and probe for measuring the variation of distance between the two

Growing community of inventors

Blanquefort, France

Christian M Le Floc'H