Abstract
This article provides a systematic approach to accurately predict the effects of delamination deficiencies on compressive properties of composite grid-stiffened structures. The deformation of the stiffener and the skin is investigated during a mechanical test. Cohesive elements in the finite element method were employed to calculate the ultimate load-carrying capacity. The delamination deficiencies in the interface between the skin and the stiffener have a significant effect upon its ultimate load-carrying capability compared with the delamination deficiencies in the skin and in the stiffener.
| Original language | English |
|---|---|
| Pages (from-to) | 901-916 |
| Number of pages | 16 |
| Journal | Mechanics of Advanced Materials and Structures |
| Volume | 25 |
| Issue number | 11 |
| DOIs | |
| State | Published - 18 Aug 2018 |
Keywords
- Composite grid-stiffened structures
- cohesive element
- compression properties
- delamination deficiencies
- delamination growth
- finite element method (FEM)
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