Long Term Behavior, Failure Analysis & In-Service Testing of Composite Cylinders

Award Information
Agency: Department of Transportation
Branch: N/A
Contract: DTRT57-11-C-10014
Agency Tracking Number: DTRT57-11-C-10014
Amount: $100,000.00
Phase: Phase I
Program: SBIR
Awards Year: 2011
Solicitation Year: 2011
Solicitation Topic Code: 101PH1
Solicitation Number: DTRT5710RSBIR1
Small Business Information
9063 Bee Cave Road, Austin, TX, 78733-6201
DUNS: 625120902
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 George Hansen
 Principal Scientist
 (512) 263-2101
Business Contact
 Monte Fellingham
Title: Contracts Administrator
Phone: (512) 263-2101
Email: mfellingham@tri-austin.com
Research Institution
TRI proposes to develop reliable methodology and protocols for in-service inspection,recertifying and retiring DOT COPVs to maximize service life while ensuring personnel safety. This method must be sufficiently robust to prevent in-service failures, while being straightforward and affordable enough to be conducted at cylinder recertification facilities. To accomplish this with a high degree of confidence, TRI/Austin will break the problem down into two parts. The first, for Phase I, will involve diagnostic investigations of existing, field aged COPVs to identify and quantify principal failure modes. This part of the work will involve a limited rupture testing of sample COPVs. The second, for Phase II, will implement a larger-scale experimental design to vary several performance factors and quantify life characteristics of COPVs to obtain robust lifetime prediction distributions. Phase I work includes: a comprehensive information search to establish the baseline of knowledge about lifetime damage accumulation and failure mechanisms; collect retired cylinders to assess how damage occurs in field usage; develop initial reliability knowledge by burst testing several cylinders; and use the Phase I knowledge to (a)develop a comprehensive life prediction Design of Experiments for Phase II, and (b)provide an initial assessment of applicable inspection methods for recertification.

* Information listed above is at the time of submission. *

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