Thermal Infrared Imaging to Study Microstructural Damage and Failure in Aluminum Alloys
This paper describes the development of infra-red imaging methods to visualize and monitor damage evolution in metallic alloys. Imaging is performed in-situ during tensile and notched tensile experiments at the microstructural grain level. Specimen preparation and imaging techniques are described. The results are anticipated to guide and improve alloy-specific damage evolution constitutive models to enable improved deformation and failure predictions.
KeywordsDamage Evolution Damage Initiation Aluminum Specimen Thermal Infrared Image Microstructural Damage
Sandia National Laboratories is a multi-program laboratory managed and operated by Sandia Corporation, a wholly owned subsidiary of Lockheed Martin Corporation, for the U.S. Department of Energy's National Nuclear Security Administration under contract DE-AC04-94AL85000.