Date of Award
Mechanical, Automotive, and Materials Engineering
Aluminum, Axial crushing, Axial cutting, Energy absorption, Impact testing, Magnesium
The primary objective of this research was to investigate cutting deformation modes, employing higher-bladed cutters (i.e. 6 or more evenly space blades), with an emphasis on superior energy absorbing capabilities in comparison to axial crushing, the current state-of-the-art. A series of test cases involving AA6061 extrusions were identified utilizing analytical models of the steady-state cutting force and mean crushing force and selecting geometries where the ratio of the former force normalized with respect to the latter exceeded unity. Quasi-static testing confirmed that the total energy absorbing capacity could be exceeded while simultaneously reducing the peak force under quasi-static loading for 8 and 10-bladed cutting modes.
The superior energy absorbing capacity was attributed to the onset of a hybrid
Magliaro, John, "Development of Superior Energy Absorbing Devices with Adaptive Capabilities Utilizing Hybrid Cutting/Clamping Deformation Modes" (2021). Electronic Theses and Dissertations. 8630.