This research project is a part of Failure Investigation and Metallurgical Analysis of DOT 3AL cylinders that were rejected during requalification due to internal neck-cracks. The hydraulic pressure cycling test was performed to determine the fatigue performance and fatigue failure initiation location of the DOT 3AL cylinders with internal neck-cracks. The knowledge gained from this effort will then be used to assess root-cause of the neck-cracks and consequence of using other cylinders of the same lot in transportation. This research project has been initiated and managed by DOT/Hazardous Materials Technology.
If you have any technical questions not addressed by this or associated documents, contact Mark Toughiry, 202-366-4545.