About this Abstract |
| Meeting |
2027 TMS Annual Meeting & Exhibition
|
| Symposium
|
Nanocomposite Materials: Innovations in Design, Fabrication, and Applications
|
| Presentation Title |
Coupled Thermo-Chemo-Mechanical Modeling of Vitrimer Carbon Fiber Reinforced Polymers for Dynamic Structural Self-Healing |
| Author(s) |
Raj Pandya, Rishit Salasiya, Megh Urvesh Raval |
| On-Site Speaker (Planned) |
Raj Pandya |
| Abstract Scope |
Vitrimer-based carbon fiber reinforced polymers, or vCFRPs, represent a new era in advanced composite materials. These materials are able to undergo dynamic topological changes while at elevated temperatures through the so-called bond exchange reactions (BER). In this research, a fully-coupled thermochemical-mechanical constitutive model is developed and implemented in a finite element framework. Our multiphysics model mathematically describes the interactions of several processes – thermal activation, chemical kinetics of the BER reaction, and the resulting macroscopic phenomena, such as the relaxation of viscoelastic strains, viscoplastic flow, and self-healing properties of the materials. In addition, we show that the healing of microcracks and delamination of the matrix takes place due to thermal triggers. Our numerical model has been rigorously validated based on experimental thermomechanical data, indicating the high accuracy of our approach to design self-healing products for the aviation and automotive industries. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Composites, Nanotechnology, |