Bonded Joints with “Nano-Stitches”: Effect of Carbon Nanotubes on Load Capacity and Failure Modes

AUTOR(ES)

Oliva, Henrique N. P., Avila, Antonio F.

FONTE

Lat. Am. j. solids struct.

DATA DE PUBLICAÇÃO

2017-03

RESUMO

Abstract Carbon nanotubes were employed as adhesive reinforcement/nano-stitches to aluminum bonded joints. The CNT addition to an epoxy adhesive not only lead to an increase on load capacity but it is also the most probable cause of the mixed failure mode (adhesive/cohesive). The damage evolution was described as the stiffness decrease and the failure mixed modes were related to the load capacity. Although the presence of CNT cluster were observed, in small concentrations (< 1.0 wt. %), these clusters acted as crack stoppers and lead to an increase on lap joint shear strength. The addition of 2.0 wt. % carbon nanotubes lead to an increase on load capacity of approximately 116.2 % when the results were compared against the single lap joints without carbon nanotubes.

Documentos Relacionados

• The Carbon Nanotubes Effect into Single-lap Joint Failure Modes and Load Capacity: a Macromechanical Analysis
• Nano-engineered composites: interlayer carbon nanotubes effect
• An experimental investigation of static load capacity of AL-GFRP adhesively bonded single lap and double butt lap joints
• Load Rate Effects in Adhesive Single Lap Joints Bonded with Epoxy/Ceramic Composites
• Effect of Humidity on The Fatigue Behaviour of Adhesively Bonded Aluminium Joints