Details
| Original language | English |
|---|---|
| Pages (from-to) | 27-33 |
| Number of pages | 7 |
| Journal | Composites Part B: Engineering |
| Volume | 63 |
| Publication status | Published - 27 Mar 2014 |
| Externally published | Yes |
Abstract
Load transfer of the graphene/carbon nanotube (CNT)/polyethylene hybrid nanocomposite is studied here from molecular dynamics (MD) simulations. Simulations of this composite material under uniaxial tension were conducted by varying CNT's position and diameter in the polymer matrix. The obtained results show that: (1) The peak strength of stress and strain evolution in the polymer matrix is lower than the peak strength of the graphene/graphene and graphene/polymer interfaces. Hence, the damage zone is always located in the polymer matrix. (2) Agglomerated two-layer graphenes do not possess an increased value in the peak strength compared with single-layer graphene-reinforced polymer nanocomposite (PNC), while two separate layers of graphene show slightly higher peak strength. (3) The largest peak strength is observed before CNT moves to the center of the polymer matrix. The damage location moves from the upper to the lower part of CNT when the CNT is located at the centre of polymer matrix. (4) The influence of the CNT diameter on the peak strength is not obvious, while the damage location and shape in the polymer matrix changes with respect to varying CNT diameters. In addition, the damage zone always falls outside the interphase zone.
Keywords
- A. Hybrid, A. Polymer-matrix composites (PMCs), B. Debonding, B. Interface/interphase, Molecular dynamics simulation
ASJC Scopus subject areas
- Materials Science(all)
- Ceramics and Composites
- Engineering(all)
- Mechanics of Materials
- Engineering(all)
- Mechanical Engineering
- Engineering(all)
- Industrial and Manufacturing Engineering
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In: Composites Part B: Engineering, Vol. 63, 27.03.2014, p. 27-33.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Load transfer of graphene/carbon nanotube/polyethylene hybrid nanocomposite by molecular dynamics simulation
AU - Zhang, Yancheng
AU - Zhuang, Xiaoying
AU - Muthu, Jacob
AU - Mabrouki, Tarek
AU - Fontaine, Michaël
AU - Gong, Yadong
AU - Rabczuk, Timon
N1 - Funding information: The authors thank Dr. J.W. Jiang and Dr. J.H. Zhao for the helpful discussions. The authors would like to acknowledge the financial supports from the German Federation of Materials Science and Engineering (BV MatWerk), the German Research Foundation (DFG), the Marie Curie International Research Staff Exchange Scheme (IRSES)- MULTIFRAC and National Basic Research Program of China (973 Program: 2011CB013800). Prof. Y. Gong would like to thank the National Natural Science Foundation of China ( 51375082 ), and Prof. T. Rabczuk also thanks the Humboldt-foundation .
PY - 2014/3/27
Y1 - 2014/3/27
N2 - Load transfer of the graphene/carbon nanotube (CNT)/polyethylene hybrid nanocomposite is studied here from molecular dynamics (MD) simulations. Simulations of this composite material under uniaxial tension were conducted by varying CNT's position and diameter in the polymer matrix. The obtained results show that: (1) The peak strength of stress and strain evolution in the polymer matrix is lower than the peak strength of the graphene/graphene and graphene/polymer interfaces. Hence, the damage zone is always located in the polymer matrix. (2) Agglomerated two-layer graphenes do not possess an increased value in the peak strength compared with single-layer graphene-reinforced polymer nanocomposite (PNC), while two separate layers of graphene show slightly higher peak strength. (3) The largest peak strength is observed before CNT moves to the center of the polymer matrix. The damage location moves from the upper to the lower part of CNT when the CNT is located at the centre of polymer matrix. (4) The influence of the CNT diameter on the peak strength is not obvious, while the damage location and shape in the polymer matrix changes with respect to varying CNT diameters. In addition, the damage zone always falls outside the interphase zone.
AB - Load transfer of the graphene/carbon nanotube (CNT)/polyethylene hybrid nanocomposite is studied here from molecular dynamics (MD) simulations. Simulations of this composite material under uniaxial tension were conducted by varying CNT's position and diameter in the polymer matrix. The obtained results show that: (1) The peak strength of stress and strain evolution in the polymer matrix is lower than the peak strength of the graphene/graphene and graphene/polymer interfaces. Hence, the damage zone is always located in the polymer matrix. (2) Agglomerated two-layer graphenes do not possess an increased value in the peak strength compared with single-layer graphene-reinforced polymer nanocomposite (PNC), while two separate layers of graphene show slightly higher peak strength. (3) The largest peak strength is observed before CNT moves to the center of the polymer matrix. The damage location moves from the upper to the lower part of CNT when the CNT is located at the centre of polymer matrix. (4) The influence of the CNT diameter on the peak strength is not obvious, while the damage location and shape in the polymer matrix changes with respect to varying CNT diameters. In addition, the damage zone always falls outside the interphase zone.
KW - A. Hybrid
KW - A. Polymer-matrix composites (PMCs)
KW - B. Debonding
KW - B. Interface/interphase
KW - Molecular dynamics simulation
UR - http://www.scopus.com/inward/record.url?scp=84898994301&partnerID=8YFLogxK
U2 - 10.1016/j.compositesb.2014.03.009
DO - 10.1016/j.compositesb.2014.03.009
M3 - Article
AN - SCOPUS:84898994301
VL - 63
SP - 27
EP - 33
JO - Composites Part B: Engineering
JF - Composites Part B: Engineering
SN - 1359-8368
ER -