| 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 |
Hierarchical Multiscale Process Modeling of a Textile Composite Y-Joint for the Aurora D8 Aircraft |
| Author(s) |
Kalima B. Bukenya, Michael Olaya, Brett A. Bednarcyk, Evan J. Pineda, Marianna Maiarù |
| On-Site Speaker (Planned) |
Kalima B. Bukenya |
| Abstract Scope |
In recent decades, the aerospace industry has seen substantial technological advancements, driven by innovations in material characterization and high-performance computing. Polymer matrix composite (PMC) engineering focuses on optimizing design, enhancing performance, and reducing costs, with woven PMCs being highly sought after for next-generation aerospace designs due to their superior properties. The curing process, along with evolving thermo-mechanical matrix properties and woven PMC architecture, induces challenging residual stresses. The traditional iterative approach to composite design faces additional complexity due to the intricate geometry of woven PMCs. Thus, integrated computational materials engineering (ICME) is gaining prominence, aligning with NASA’s Vision 2040, emphasizing the reimagining of composite engineering through validated robust computational modeling tools.
This work introduces a hierarchical multiscale modeling process as a part of a larger ICME framework, analyzing the textile composite Y-joint component of the Aurora D8 double-bubble fuselage. The impact of curing on residual stress in the inter- and intra-tow matrix of a 2D plain weave repeating unit cell is explored, utilizing closed-form homogenization approaches to estimate tow properties during curing. Virtual manufacturing in Abaqus evaluates residual stress contributions from chemical shrinkage and fiber-matrix coefficient of thermal expansion differences. Comparisons highlight the study's contributions to understanding residual stress evolution, emphasizing effective woven PMC properties for macroscopic Y-joint applications within the ICME framework. This study marks a significant step in development of multiscale process modeling approaches for ICME-based composite design and optimization. |
| Proceedings Inclusion? |
Definite: Post-meeting proceedings |