The research summarized in this document provides valuable information for structural health evaluation of NASA infrastructure. Specifically, material properties are reported which will enable calibration of ductile fracture prediction methods for three high-toughness metallic materials and one aluminum alloy which can be found in various NASA facilities. The task of investigating these materials has also served to validate an overall methodology for ductile fracture prediction is currently being employed at NASA. In facilitating the ability to incorporate various materials into the prediction scheme, we have provided data to enable demonstration of the overall generality of the approach.Hill, Michael R.Ames Research CenterDUCTILITY; FRACTURING; PREDICTION ANALYSIS TECHNIQUES; TOUGHNESS; ALUMINUM ALLOYS; CHARACTERIZATION; CALIBRATING; HEALTH...