| About this Abstract |
| Meeting |
2024 ASC Technical Conference, US-Japan Joint Symposium, D30 Meeting
|
| Symposium
|
2024 ASC Technical Conference, US-Japan Joint Symposium, D30 Meeting
|
| Presentation Title |
Molecular Dynamics Approach to Process Modeling and Material Characterization of PAN-Based Carbon Fiber |
| Author(s) |
Md Fazlay Alam, Armanj Davresh Hasanyan |
| On-Site Speaker (Planned) |
Md Fazlay Alam |
| Abstract Scope |
Fiber reinforced polymer composites offer promising opportunities for engineering applications due to their lightweight and mechanical properties. The behavior of the overall composite is highly dependent on the fiber constituent property. However, characterizing the properties of individual fibers within these composites poses significant challenges due to their complex nature and small size scales. This research explores the utilization of molecular dynamics for process modeling and subsequent virtual testing to infer the nonlinear and fracture properties of a PAN-based carbon fiber.
First, the nano-structure of the PAN fiber is generated through molecular dynamics process modeling approach. The nano-structure is composed of compact folds of graphitic sheets, where the details of the fold-lines and internal flaws are induced during the process of carbonization and graphitization. The first step in the analysis will include replicating the manufacturing processes of the fibers in order to capture the intricate details of the PAN fibers at the nano-scale.
The second step will include applying mechanical loads on the generated nano-structure in order to infer the nonlinear stress-strain response and the fracture properties. The loading cases that are of interest include tension, compression, and bending.
The study focuses on developing a reliable methodology to characterize fiber nonlinearity, enhancing the design and optimization of structures across various engineering disciplines. Through molecular dynamics simulations and numerical testing, complex interactions within the fibers can be observed, allowing for tailored material properties to meet specific application requirements. |
| Proceedings Inclusion? |
Definite: Post-meeting proceedings |