Improved Approaches to Nondestructively Test Marine Aluminum Structures

Period of Performance: 12/19/2006 - 06/11/2008

$100K

Phase 1 SBIR

Recipient Firm

Space Micro, Inc.
10237 Flanders Court
San Diego, CA 92121
Principal Investigator

Abstract

The use of aluminum alloys in marine vessels introduces new problems in the maintenance of structures. Steel has a fatigue limit . This means that if the stress is moderately low, the structure will never fail by fatigue. Aluminum alloys do not have such a limit, meaning that these alloys can eventually fail by fatigue regardless of how low the stress was in the part. Corrosion of the part can increase the rate of failure.