Enhancement on mechanical strength of adhesively-bonded composite lap joints at cryogenic environment using coiled carbon nanotubes

Hei Lam Ma; Zhemin Jia; Kin tak Lau; Xiaofeng Li; David Hui; San-Qiang Shi

doi:10.1016/j.compositesb.2016.11.019

Enhancement on mechanical strength of adhesively-bonded composite lap joints at cryogenic environment using coiled carbon nanotubes

Hei Lam Ma, Zhemin Jia, Kin tak Lau, Xiaofeng Li, David Hui, San-Qiang Shi

Research output: Journal article publication › Journal article › Academic research › peer-review

40 Citations (Scopus)

Abstract

Experimental results showed that all adhesives had greater Vickers hardness values, Young's moduli and tensile strengths at CT. The performance of CCNT/epoxy adhesive at CT was outstanding due to the enhancement of mechanical interlocking effect between CCNTs and epoxy at low temperature. This effect led to a greater Vickers hardness value, Young's modulus and lap joint shear strength of this adhesive at CT when compared with MWNT/epoxy type. The result from finite element analysis (FEA) also proved that the contraction of matrix at CT induced additional clamping force onto the surface of nanotubes. Due to the larger surface area of CCNTs, a relatively stronger bonding strength was achieved, and thus, CCNT/epoxy adhesive had better mechanical properties at low temperature condition.

Original language	English
Pages (from-to)	396-401
Number of pages	6
Journal	Composites Part B: Engineering
Volume	110
DOIs	https://doi.org/10.1016/j.compositesb.2016.11.019
Publication status	Published - 1 Feb 2017

Keywords

Adhesion
Mechanical properties
Nano-structures
Polymer-matrix composites (PMCs)

ASJC Scopus subject areas

Ceramics and Composites
Mechanics of Materials
Mechanical Engineering
Industrial and Manufacturing Engineering

More information

10.1016/j.compositesb.2016.11.019

http://hdl.handle.net/10397/106541

Cite this

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title = "Enhancement on mechanical strength of adhesively-bonded composite lap joints at cryogenic environment using coiled carbon nanotubes",

abstract = "Experimental results showed that all adhesives had greater Vickers hardness values, Young's moduli and tensile strengths at CT. The performance of CCNT/epoxy adhesive at CT was outstanding due to the enhancement of mechanical interlocking effect between CCNTs and epoxy at low temperature. This effect led to a greater Vickers hardness value, Young's modulus and lap joint shear strength of this adhesive at CT when compared with MWNT/epoxy type. The result from finite element analysis (FEA) also proved that the contraction of matrix at CT induced additional clamping force onto the surface of nanotubes. Due to the larger surface area of CCNTs, a relatively stronger bonding strength was achieved, and thus, CCNT/epoxy adhesive had better mechanical properties at low temperature condition.",

keywords = "Adhesion, Mechanical properties, Nano-structures, Polymer-matrix composites (PMCs)",

author = "Ma, {Hei Lam} and Zhemin Jia and Lau, {Kin tak} and Xiaofeng Li and David Hui and San-Qiang Shi",

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AU - Ma, Hei Lam

AU - Jia, Zhemin

AU - Lau, Kin tak

AU - Li, Xiaofeng

AU - Hui, David

AU - Shi, San-Qiang

PY - 2017/2/1

Y1 - 2017/2/1

N2 - Experimental results showed that all adhesives had greater Vickers hardness values, Young's moduli and tensile strengths at CT. The performance of CCNT/epoxy adhesive at CT was outstanding due to the enhancement of mechanical interlocking effect between CCNTs and epoxy at low temperature. This effect led to a greater Vickers hardness value, Young's modulus and lap joint shear strength of this adhesive at CT when compared with MWNT/epoxy type. The result from finite element analysis (FEA) also proved that the contraction of matrix at CT induced additional clamping force onto the surface of nanotubes. Due to the larger surface area of CCNTs, a relatively stronger bonding strength was achieved, and thus, CCNT/epoxy adhesive had better mechanical properties at low temperature condition.

AB - Experimental results showed that all adhesives had greater Vickers hardness values, Young's moduli and tensile strengths at CT. The performance of CCNT/epoxy adhesive at CT was outstanding due to the enhancement of mechanical interlocking effect between CCNTs and epoxy at low temperature. This effect led to a greater Vickers hardness value, Young's modulus and lap joint shear strength of this adhesive at CT when compared with MWNT/epoxy type. The result from finite element analysis (FEA) also proved that the contraction of matrix at CT induced additional clamping force onto the surface of nanotubes. Due to the larger surface area of CCNTs, a relatively stronger bonding strength was achieved, and thus, CCNT/epoxy adhesive had better mechanical properties at low temperature condition.

KW - Adhesion

KW - Mechanical properties

KW - Nano-structures

KW - Polymer-matrix composites (PMCs)

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DO - 10.1016/j.compositesb.2016.11.019

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VL - 110

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EP - 401

JO - Composites Part B: Engineering

JF - Composites Part B: Engineering

ER -

Enhancement on mechanical strength of adhesively-bonded composite lap joints at cryogenic environment using coiled carbon nanotubes

Abstract

Keywords

ASJC Scopus subject areas

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