Abstract
Discontinuous tape composites have considerable attention due to their high formability and tailorable structures. Despite their advantages, this discontinuity leads to complex structures and makes it difficult to predict their mechanical properties. On the other hand, they have high orientational and dimensional sensitivity, which causes spatial variability and complexity in the structure to predict the mechanical properties. This spatial variability is also related to the mould cavity. A constitutive model was improved to explain the relationship between DT orientations and the mould cavity. According to the modelling technique, a random DT distribution was generated by Random Sequential Adsorption then, the Set Voronoi Tessellation was implemented to obtain DT layers. Afterwards, the Classical Laminate Theory and Finite Element Method were applied to compare the virtual net-shaped DT specimens. The results of both methods showed high stiffness at the edges of the specimens.
| Original language | English |
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| Title of host publication | Proceedings of the 20th European Conference on Composite Materials: Composites Meet Sustainability |
| Subtitle of host publication | Vol 4 – Modeling and Prediction |
| Editors | Anastasios P. Vassilopoulos , Véronique Michaud |
| Place of Publication | Lausanne |
| Publisher | EPFL Lausanne, Composite Construction Laboratory |
| Pages | 380-387 |
| Number of pages | 8 |
| ISBN (Electronic) | 978-2-9701614-0-0 |
| Publication status | Published - 2022 |
| Event | 20th European Conference on Composite Materials: Composites Meet Sustainability - Lausanne, Switzerland Duration: 26 Jun 2022 → 30 Jun 2022 Conference number: 20 |
Conference
| Conference | 20th European Conference on Composite Materials |
|---|---|
| Abbreviated title | ECCM20 |
| Country/Territory | Switzerland |
| City | Lausanne |
| Period | 26/06/22 → 30/06/22 |
Keywords
- Discontinuous reinforcements
- cavity edge effect
- stiffness model
- finite element modelling