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Study on Interfacial Interlocking Effect of Ultrasonic Vibration-Assisted Adhesive Bonding
Yunwei Cao1, Hui Wang1,2, Qingsong Zhang2
1Hubei Key Laboratory of Advanced Technology for Automotive Components, Wuhan University of Technology, Wuhan 430070, China.
Polymers
|July 9, 2022
Summary
Ultrasonic vibration enhances adhesive bonding between nickel erosion shields and carbon fiber reinforced polymer blades. This improves blade durability in harsh environments by increasing adhesive permeability and micromechanical interlocking.
Area of Science:
- Materials Science
- Mechanical Engineering
- Surface Engineering
Background:
- Carbon fiber reinforced polymer (CFRP) blades require durable erosion shields for harsh environments.
- Traditional adhesive bonding of nickel (Ni) shields to CFRP suffers from poor adhesive permeation and insufficient micromechanical interlocking.
Purpose of the Study:
- To investigate the effect of ultrasonic vibration on the adhesive bonding process between sandblasted Ni plates and CFRP laminates.
- To enhance the durability and micromechanical interlocking of the bonded interface.
Main Methods:
- Application of ultrasonic vibration during the adhesive bonding process.
- Tensile testing to measure shear strength.
- Scanning electron microscopy (SEM) and energy-dispersive spectroscopy (EDS) for interface characterization.
- Atomic force microscopy (AFM) for surface analysis.
- Molecular dynamics simulations to study the strengthening mechanism.
Main Results:
- Ultrasonic vibration significantly improved adhesive permeability and uniformity at the Ni/CFRP interface.
- Enhanced micromechanical interlocking was observed, leading to increased shear strength.
- Characterization revealed improved cross-sectional morphology and altered failure models.
Conclusions:
- Ultrasonic vibration is an effective method to improve the adhesive bonding of Ni erosion shields to CFRP blades.
- The enhanced bonding strengthens the blades, improving their durability in challenging environmental conditions.
