Tensile fracture behavior of short carbon nanotube reinforced polymer composites: A coarse-grained model

Behrouz Arash, Harold S. Park, Timon Rabczuk

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

Short-fiber-reinforced polymer composites are increasingly used in engineering applications and industrial products owing to their unique combination of superior mechanical properties, and relatively easy and low-cost manufacturing process. The mechanical behavior of short carbon nanotube (CNT) polymer composites, however, remains poorly understood due to size and time limitations of experiments and atomistic simulations. To address this issue, the tensile fracture behavior of short CNT reinforced poly (methyl methacrylate) (PMMA) matrix composites is investigated using a coarse-grained (CG) model. The reliability of the CG model is demonstrated by reproducing experimental results on the strain-stress behavior of the polymer material. The effect of the nanotube weight fraction on the mechanical properties, i.e. the Young's modulus, yield strength, tensile strength and critical strain, of the CNT/polymer composites is studied in detail. The dependence of the mechanical properties of the composites on the orientation and length-to-diameter aspect ratio of nanotube reinforcements is also examined.

Original languageEnglish
Article number6841
Pages (from-to)981-988
Number of pages8
JournalComposite Structures
Volume134
DOIs
Publication statusPublished - 2015 Dec 15

Fingerprint

Carbon Nanotubes
Carbon nanotubes
Polymers
Composite materials
Mechanical properties
Nanotubes
Polymethyl Methacrylate
Polymethyl methacrylates
Yield stress
Aspect ratio
Reinforcement
Tensile strength
Elastic moduli
Fibers
Costs
Experiments

Keywords

  • Carbon nanotube
  • Coarse-grained model
  • Polymer-matrix composites
  • Tensile fracture

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Ceramics and Composites

Cite this

Tensile fracture behavior of short carbon nanotube reinforced polymer composites : A coarse-grained model. / Arash, Behrouz; Park, Harold S.; Rabczuk, Timon.

In: Composite Structures, Vol. 134, 6841, 15.12.2015, p. 981-988.

Research output: Contribution to journalArticle

Arash, Behrouz ; Park, Harold S. ; Rabczuk, Timon. / Tensile fracture behavior of short carbon nanotube reinforced polymer composites : A coarse-grained model. In: Composite Structures. 2015 ; Vol. 134. pp. 981-988.
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