Abstract
The dynamic properties of 3D orthogonal woven E-glass fiber/epoxy composites were studied experimentally under both the dynamic and static loading conditions, and the stress-strain curves were obtained. The results show that the responses of the composites are of obviously nonlinear and anisotropic characteristics, and of the strain rate sensitivity as well. In theory, a macroscopic damage variable dependent of strain and strain rate is put forward to describe these characteristics, and a nonlinear viscoelastic model is presented for the composites with damage. The stress-strain curves fitted by the modified constitutive equation are in good agreement with the experimental ones.
| Original language | English |
|---|---|
| Pages (from-to) | 157-162 |
| Number of pages | 6 |
| Journal | Fuhe Cailiao Xuebao/Acta Materiae Compositae Sinica |
| Volume | 29 |
| Issue number | 4 |
| State | Published - Aug 2012 |
| Externally published | Yes |
Scopus Subject Areas
- Ceramics and Composites
- General Chemistry
- Condensed Matter Physics
- Mechanics of Materials
Keywords
- 3D orthogonal woven E-glass fiber
- Composites
- Constitutive equation
- Damage
- Nonlinear viscoelasticity