Composite pressure vessel including crack arresting barrier

US8561829B1 · kind B1 · utility

Assignee

• The United States of America as represented by the Administrator of the National Aeronautics and Space Administration · US

Inventor

• Thomas K. DeLay · Huntsville, US

Key dates

• Filing date: Jul 9, 2012
• Grant date: Oct 22, 2013
• Expiry date: Jul 9, 2032

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E60/32
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A pressure vessel includes a ported fitting having an annular flange formed on an end thereof and a tank that envelopes the annular flange. A crack arresting barrier is bonded to and forming a lining of the tank within the outer surface thereof. The crack arresting barrier includes a cured resin having a post-curing ductility rating of at least approximately 60% through the cured resin, and further includes randomly-oriented fibers positioned in and throughout the cured resin.