Abstract
Expressions for cure and residual stresses for nonlinear anisotropic viscoelastic composites are formulated. Probabilities of delamination during the manufacturing process are examined to determine survivability during manufacture. It is shown that the worst conditions occur during the cool down period after cure has been completed. Linear viscoelastic material maximum stresses exceed the corresponding nonlinear ones by as much as 35%. The corresponding largest probability of failure difference is only 1 1%. The effects of fiber orientation are demonstrated.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 111-127 |
| Number of pages | 17 |
| Journal | Journal of Sandwich Structures and Materials |
| Volume | 1 |
| Issue number | 2 |
| DOIs | |
| State | Published - 1999 |
Keywords
- Cure processes
- Delamination
- Nonlinear viscoelasticity
- Probabilistic failure analysis
- Viscoelastic composites
ASJC Scopus subject areas
- Ceramics and Composites
- Mechanics of Materials
- Mechanical Engineering