Abstract
The effective moduli of a multi-scale composite are evaluated by a bottom-up (hierarchical) modeling approach. We focus on a two-scale structure in which the small scale includes a platelet array inside a matrix, and the large scale contains fibers inside a composite matrix. We demonstrate that the principal moduli of the multi-scale composite can be fine-tuned by the platelet arrangement and orientation. As a case study, we consider the phenomenon of fiber micro-buckling within the multi-scale composite. It is found that the compressive micro-buckling strength can be considerably increased for specific platelet orientations. The multi-scale design approach presented here can be used to generate novel families of composite materials with tunable mechanical properties.
Original language | English |
---|---|
Pages (from-to) | 566-573 |
Number of pages | 8 |
Journal | Composites Science and Technology |
Volume | 72 |
Issue number | 5 |
DOIs | |
State | Published - 8 Mar 2012 |
Externally published | Yes |
Keywords
- A. Nanocomposites
- B. Mechanical properties
- C. Anisotropy
- C. Multiscale modeling
ASJC Scopus subject areas
- Ceramics and Composites
- General Engineering