How geometric details can affect the strength of adhesive lap joints
The durability of adhesively bonded joints--when utilized as blade attachments--has a significant impact on the performance of wind turbines. Accordingly, there is interest in determining how geometric details affect the strength of these joints. Finite element analyses were performed to aid in the selection of three composite-to-metal joint geometries for compressive axial testing. Both monotonic and low-cycle fatigue tests were conducted. Analysis and testing of these joints provide insight into the effects of adding extra adhesive to the end of the bond or tapering the metal adherend. The issue of whether the relative performance of different joints in monotonic tests can be used to predict the relative fatigue strength of these joints is also addressed.
- Research Organization:
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Organization:
- USDOE Assistant Secretary for Energy Efficiency and Renewable Energy, Washington, DC (United States)
- DOE Contract Number:
- AC04-94AL85000
- OSTI ID:
- 425260
- Report Number(s):
- SAND-96-1448C; CONF-970135-16; ON: DE96015188; TRN: AHC29703%%8
- Resource Relation:
- Conference: 16. American Society of Mechanical Engineers wind energy symposium, Reno, NV (United States), 6-9 Jan 1997; Other Information: PBD: [1996]
- Country of Publication:
- United States
- Language:
- English
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