Browsing by Subject "radius of curvature"
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Item An Automated Method for Geometrical Surface Characterization for Fatigue Analysis of Additive Manufactured Parts(University of Texas at Austin, 2019) Rasoolian, Behnam; Pegues, Jonathan; Shamsaei, Nima; Silva, DanielRecent interest to implement additive manufactured parts into structural applications has created a critical need to better understand the fatigue behavior of these parts. Alloys such as Ti-6Al-4V are popular in the aerospace and biomedical industries due to their superior strength to weight ratio and biocompatibility. Previous works have associated fatigue behavior with surface roughness, especially radius of curvature of notches. It is therefore important to develop a fast, reliable and consistent methodology for extracting such curvatures. The contribution of this paper is in providing an automated method for extracting radius of curvature using image processing techniques and optimization. Results on fatigue life prediction indicates similar results between the automated method and manually extracted radii in a significantly shorter period of time.