Abstract
It is well known that face/core debond crack propagation is governed by the critical energy release rate (fracture toughness) and mode-mixity at the crack tip. Thus, the current study focuses on the developing of a methodology to perform fatigue crack growth experiments of debonded sandwich structures under well controlled cyclic energy release rate and mode-mixity. The proposed methodology uses the mixed mode bending (MMB) sandwich specimen and MMB test rig. Crack length measurements are based on an analytically available compliance expression. Accurate fatigue crack growth measurements and better control of loading conditions at the crack tip will be the most relevant outcomes of using the proposed fatigue test method.
| Original language | English |
|---|---|
| Title of host publication | ICSS 9 |
| Editors | G. Ravichandran |
| Publication date | 2010 |
| Publication status | Published - 2010 |
| Event | 9th International Conference on Sandwich Structures - Pasadena, CA, United States Duration: 14 Jun 2010 → 16 Jun 2010 Conference number: 9 |
Conference
| Conference | 9th International Conference on Sandwich Structures |
|---|---|
| Number | 9 |
| Country/Territory | United States |
| City | Pasadena, CA |
| Period | 14/06/2010 → 16/06/2010 |
Keywords
- Fatigue and fracture
- Interface toughness
- Sandwich composites
- Crack growth in composites
- Mixed mode fracture