|About this Abstract
||2019 TMS Annual Meeting & Exhibition
||Additive Manufacturing of Metals: Fatigue and Fracture III
||A New Perspective on Visualizing the Elastic Limit and the Necessity of 6D Limit Hypersurfaces
||Zachary Brunson, Aaron Stebner
|On-Site Speaker (Planned)
More anisotropic materials than ever before are being used as technological and material developments continue to advance the field of solid mechanics, with additively manufactured materials particularly inclined toward such characteristics. The techniques historically used for isotropic solids have often been employed without question to anisotropic materials, such as limit surface visualization and calibration. Anisotropic material descriptions must account for the relative orientations of the principal stress state and the material frame, implying that the classic 3D stress is not enough and an additional 3 dimensions are necessary in order to fully describe a limit condition. This presentation explores the meaning and implications of a 6D limit hypersurface, including convexity, visualization, pitfalls of 2D and 3D projections, and the error associated with classic 2D visualization techniques. A case study involving 6D limit hypersurface calibration for an additively manufactured material will demonstrate how to utilize this new approach.
||Planned: Supplemental Proceedings volume