About this Abstract |
Meeting |
2025 TMS Annual Meeting & Exhibition
|
Symposium
|
Advanced Characterization Techniques for Quantifying and Modeling Deformation
|
Presentation Title |
Damage Nucleation at High Temperatures in OFHC Cu Under Impacts |
Author(s) |
Nicola Bonora, Andrew Ruggiero, Gabriel Testa, Gianluca Iannitti, Sara Ricci, Saryu Fensin, George Gray |
On-Site Speaker (Planned) |
Nicola Bonora |
Abstract Scope |
This study focuses on characterizing and predicting ductile damage nucleation under impact conditions. To do so, a novel experimental technique has been developed to perform Symmetric Taylor impact tests (RoR), using a single-stage gas gun, at various impact velocities and imposed temperatures on OFHC Cu. During the test, the projectile impacts an identical stationary counter-specimen, and both samples are subjected to complex deformation paths, high strain rates, and pressures. High impact pressures can promote ductile damage nucleation along the rod's axis due to peaks of stress triaxiality during tensile loading. While the mechanisms of damage nucleation in OFHC Cu under these conditions are well-studied, the effect of temperature on this process remains less understood. Therefore, by combining experiments and numerical simulations, the aim of this work is to assess how temperature influences damage nucleation and the required deformation level under impact conditions. |
Proceedings Inclusion? |
Planned: |
Keywords |
Characterization, Modeling and Simulation, Mechanical Properties |