Investigation of the Influence of Multi-Walled Carbon Nanotubes on Laminate Composites During Progressive Tensile Damage Using Acoustic Emission

2021 ◽  
Vol 41 (1) ◽  
Author(s):  
Ning Pei ◽  
Junjun Shang ◽  
Leonard J. Bond ◽  
Chunguang Xu
Keyword(s):  
Carbon Nanotubes ◽  
Acoustic Emission ◽  
Laminate Composites ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes ◽  
Tensile Damage

Investigation of behaviors of glass/epoxy laminate composites reinforced with carbon nanotubes under quasi-static punch shear loading

2017 ◽  
Vol 21 (4) ◽  
pp. 1535-1556 ◽  
Author(s):  
Mohammad Sadeghi ◽  
Mohammad Hossein Pol
Keyword(s):  
Carbon Nanotubes ◽  
Contact Force ◽  
Glass Fibers ◽  
Shear Loading ◽  
Test Results ◽  
Absorbed Energy ◽  
Laminate Composites ◽  
The Matrix ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

In this paper, in addition to investigation of the effects of adding of nanotubes on the tensile properties of epoxy matrix and glass/epoxy laminate composite, the effects of adding of nanotubes and the effect of indenter shape on quasi-static punch shear properties of glass/epoxy laminate are experimentally studied. Laminate nanocomposites have 12 layers of plain weave glass fibers which are made by hand lay-up method. Resin is composed of a two-component epoxy; Epon 828 as the base and Epikure F-205 as the curing agent. Multi-walled carbon nanotubes modified by hydroxid (–COOH) are used with 0%, 0.5% and 1% ratio in weight with respect to the matrix. In quasi-static punch shear tests, three indenters (flat, conical and ogival) are utilized. Tensile test results for nanomatrix show that the most changes are obtained on 0.5 wt.% specimen, in which the ultimate strength and strain energy are increased 22% and 17% respect to the neat sample, respectively. No distinct change was observed in tensile behavior of the hybrid composite samples by the addition of carbon nanotubes. Punch shear test results show that addition of carbon nanotubes reduces the contact force and the absorbed energy in ogival and conical indenters. In presence of nanotube particles, the maximum decreasing in the contact force and the absorbed energy happens in conical nose indenter with 23% and 26% decrease, respectively. Comparison of different indenters shows that in the neat samples, the maximum and minimum contact force belongs to the flat nose indenter (2.45 kN) and the ogival nose indenter (0.75 kN), respectively, while the maximum and minimum absorbed energy belongs to the conical nose indenter (13.5 J) and the flat nose indenter (10 J), respectively. Moreover, change of indenter geometry changes the failure mechanism, so that the failure of flat indenter is plugging and failure of sharp indenter is petaling.

Multi-walled Carbon Nanotubes Penetrate into Plant Cells and Affect the Growth of Onobrychis arenaria Seedlings

Acta Naturae ◽  
2011 ◽  
Vol 3 (1) ◽  
pp. 99-106 ◽  
Author(s):  
E A Smirnova ◽  
A A Gusev ◽  
O N Zaitseva ◽  
E M Lazareva ◽  
G E Onishchenko ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Plant Cells ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

Dispersion of Relatively Long Multi-walled Carbon Nanotubes in Water using Ozone Generated by Dielectric Barrier Discharge

2016 ◽  
Vol 136 (4) ◽  
pp. 180-185 ◽  
Author(s):  
Zaw Lin ◽  
Mitsunobu Yoshida ◽  
Yuki Uesugi ◽  
Karthik Paneer Selvam ◽  
Takeshi Nishikawa ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Dielectric Barrier Discharge ◽  
Barrier Discharge ◽  
Dielectric Barrier ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

Incorporation of Multi Wall Carbon Nanotubes into Glass-Surfaces via Laser-Treatment

2003 ◽  
Vol 772 ◽  
Author(s):  
T. Seeger ◽  
G. de la Fuente ◽  
W.K. Maser ◽  
A.M. Benito ◽  
A. Righi ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Continuous Wave ◽  
Silica Surface ◽  
Multi Wall Carbon Nanotubes ◽  
Composite Formation ◽  
Multi Walled Carbon Nanotubes ◽  
Glass Surfaces ◽  
Walled Carbon Nanotubes ◽  
First Time ◽  
Scanning Electron

AbstractCarbon nanotubes (CNT) are interesting candidates for the reinforcement in robust composites and for conducting fillers in polymers due to their fascinating electronic and mechanical properties. For the first time, we report the incorporation of multi walled carbon nanotubes (MWNTs) into silica-glass surfaces by means of partial surface-melting caused by a continuous wave Nd:YAG laser. MWNTs were detected being well incorporated in the silica-surface. The composites are characterized using scanning electron microscopy (SEM) and Raman-spectroscopy. A model for the composite-formation is proposed based on heatabsorption by MWNTs and a partial melting of the silica-surface.

Electromagnetic and Absorbing Properties of Multi-walled Carbon Nanotubes/Epoxy-silicone Coatings

2010 ◽  
Vol 25 (2) ◽  
pp. 181-185 ◽  
Author(s):  
Yu-Chang QING ◽  
Wan-Cheng ZHOU ◽  
Fa LUO ◽  
Dong-Mei ZHU
Keyword(s):  
Carbon Nanotubes ◽  
Multi Walled Carbon Nanotubes ◽  
Silicone Coatings ◽  
Walled Carbon Nanotubes
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