About this Abstract |
Meeting |
2025 TMS Annual Meeting & Exhibition
|
Symposium
|
Algorithms Development in Materials Science and Engineering
|
Presentation Title |
Computer-Vision Based Characterization of Shock-Induced Plasticity in Atomistic Simulations |
Author(s) |
Andre Archer, Douglas E. Spearot |
On-Site Speaker (Planned) |
Andre Archer |
Abstract Scope |
Understanding shock induced plasticity is important for developing materials for ballistics, spacecraft, and nuclear applications. Molecular dynamics (MD) simulations are an appropriate method to study the nanoscale plastic response of materials subjected to shock loadings. It is simple to render snapshots of dislocation behavior using geometric metrics. However, using raw data from MD simulations alone, it is difficult to effectively quantify these patterns as they evolve during shockwave propagation. The objective of this work is to implement a computer-vision based approach to characterize spatial characteristics of dislocation nucleation. Regions of dislocation activity are identified and a line detection algorithm is developed to identify and characterize dislocation activity from carefully rendered images behind the shock front. The use of a computer-vision based approach allows for the quantification of dislocation density and spacing as it locally evolves during shock loading. |
Proceedings Inclusion? |
Planned: |
Keywords |
Computational Materials Science & Engineering, Modeling and Simulation, Mechanical Properties |