About this Abstract |
| Meeting |
MS&T24: Materials Science & Technology
|
| Symposium
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ACerS Robert B. Sosman Award Symposium: The Role of Computational Modeling of Complex Materials
|
| Presentation Title |
Role of Ripplocations in the Bending and Uniaxial Deformation of Graphite |
| Author(s) |
Kaustubh Sudhakar |
| On-Site Speaker (Planned) |
Kaustubh Sudhakar |
| Abstract Scope |
This talk focuses on investigating the mechanical response of graphite using molecular dynamics simulations, leveraging the DRIP-REBO potentials. Uniaxial compression simulations reveal the nucleation and motion of ripplocations and ripplocation boundaries (RBs). Notably, the simulations demonstrate a novel phenomenon where tensile and compressive strains nest on the RBs during deformation under bending or double indentation. These findings are corroborated by TEM evidence from the literature. The study provides insights into the anisotropic mechanical behavior of graphite, crucial for its applications as a refractory material. The simulations elucidate the atomistic mechanisms governing the response of graphite to mechanical stress, paving the way for tailoring its properties through defect engineering or structural modifications. |