|About this Abstract
||2022 TMS Annual Meeting & Exhibition
||Bulk Metallic Glasses XIX
||A-20: Investigating the Fundamentals of Incipient Spall via Bulk Metallic Glasses with Laser-driven Micro-flyer Experiments
||Christopher Dimarco, Ethen Lund, Gavin Mackay, Laszlo Kecskes, Jan Schroers, K.T. Ramesh
|On-Site Speaker (Planned)
The spall failure process occurs through the interaction of rarefaction waves during dynamic loading through a void nucleation and growth process. While spall failure has been thoroughly studied, our understanding of the theoretical underpinnings of this failure process is still limited. Typically, void nucleation is driven by microstructural features, such as precipitates and grain boundaries, and the stochastic nature of these features results in large variation in the spall response. In an effort to investigate the mechanisms that drives the void nucleation process, we seek to remove these traditional microstructural details by studying bulk metallic glasses (BMGs). These are the first to utilize laser-driven micro-flyer experiments, which, facilitates high-throughput capabilities (i.e. meaningful statistics). We focus on two challenges: (1) improving the laser-driven micro-flyer experiment to ensure high repeatability, fine-tuned parameter control, and low experimental error; and (2) measuring and understanding the spall response in a BMG sample.
||Mechanical Properties, Other,