Abstract
Accurately predicting failure in woven composites requires knowledge of the stress states within the meso-scale structure of the fabric reinforcement. Multicontinuum technology provides a computationally efficient way of extracting constituent stresses and strains from a structural-level finite element analysis. This study investigates the value in extending the capabilities of multicontinuum technology to materials with complex heterogeneity that could benefit from the definition of many constituents. To determine the feasibility of this extension, a meso-scale finite element model of a triaxial braid was developed and used as a test case. The model's predictions of initial matrix failure were in good agreement with the limited experimental data. Also, trends in initial failure predictions for multi-axial load cases are in agreement with physically intuitive expectations. These results show promise for the success of future research in extending multicontinuum technology for application to composites with complex multiscale heterogeneity.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 303-314 |
| Number of pages | 12 |
| Journal | Journal of Composite Materials |
| Volume | 47 |
| Issue number | 3 |
| DOIs | |
| State | Published - Feb 2013 |
Funding
This study was supported by the Air Force Office of Scientific Research under contract FA9550-10-C-0027.
Keywords
- Textile composites
- finite element analysis
- mechanical properties
- multiscale modeling
ASJC Scopus subject areas
- Ceramics and Composites
- Mechanics of Materials
- Mechanical Engineering
- Materials Chemistry