The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 14, 2014
Filed:
Sep. 08, 2009
Gilles Hochstetter, Bernay, FR;
Lionel Hugon, Menneval, FR;
Frédéric Demanze, Caudebec en Caux, FR;
Stéphanie Pignoc-chicheportiche, Le Trait, FR;
Gilles Hochstetter, Bernay, FR;
Lionel Hugon, Menneval, FR;
Frédéric Demanze, Caudebec en Caux, FR;
Stéphanie Pignoc-Chicheportiche, Le Trait, FR;
Arkema France, Colombes, FR;
Technip France, Courbevoie, FR;
Abstract
The invention relates to a method for evaluating the fatigue life of a polymer composition, including the following steps: i) providing a polymer composition; ii) manufacturing a plurality of axisymmetric test tubes cut from said composition; iii) subjecting said test tubes to a uniaxial traction fatigue test including a plurality of loading and unloading cycles for the test tube, the geometry of the test tube making it possible to subject the material to triaxial stresses, in the area of the test tube cut, simulating the stress conditions for the pressure sheath of a flexible pipe, particularly for off-shore use; and iv) predetermining the number of cycles until the rupture of said polymer composition. The invention is related to the use of said polymer composition selected through the predetermining method for manufacturing pipes or conduits to convey a pressurized and/or corrosive fluid.