Abstract
We describe the material characterization required to model curing and the resulting process induced deformations for a low temperature epoxy UD prepreg. This includes the cure kinetics, cure shrinkage, coefficient of thermal expansion and modulus-development. Material data was fit to models with python scripts. Curing experiments with multiple lay-ups were performed in a diaphragm forming station on aluminum tool equipped with heating cartiges. The process was modeled in Abaqus with the Compro plug-in. High-resolution 3D laser scans of manufactured parts were compared with the predicted process induced deformations and good agreement was observed.
| Original language | English |
|---|---|
| Title of host publication | Characterization |
| Subtitle of host publication | Composites Meet Sustainability |
| Editors | Anastasios P. Vassilopoulos, Veronique Michaud |
| Place of Publication | Lausanne |
| Publisher | EPFL Lausanne, Composite Construction Laboratory |
| Pages | 409-416 |
| Number of pages | 8 |
| Volume | Vol 1-6 |
| ISBN (Electronic) | 978-2-9701614-0-0 |
| DOIs | |
| Publication status | Published - 2022 |
| Event | 20th European Conference on Composite Materials (ECCM20): Composites meet Sustainability - EPFL Ecole polytechnique fédérale de Lausanne, Lausanne, Switzerland Duration: 26 Jun 2022 → 30 Jun 2022 https://eccm20.org |
Publication series
| Name | ECCM 2022 - Proceedings of the 20th European Conference on Composite Materials: Composites Meet Sustainability |
|---|---|
| Volume | 3 |
Conference
| Conference | 20th European Conference on Composite Materials (ECCM20) |
|---|---|
| Country/Territory | Switzerland |
| City | Lausanne |
| Period | 26.06.2022 → 30.06.2022 |
| Internet address |
Keywords
- diaphragm forming
- epoxy
- process induced deformations
- process simulation
- UD prepreg