XFEM crack growth virtual monitoring in self-sensing CNT reinforced polymer nanocomposite plates using ANSYS

2022 ◽  
pp. 115137
Author(s):  
L. Rodríguez-Tembleque ◽  
J. Vargas ◽  
E. García-Macías ◽  
F.C. Buroni ◽  
A. Sáez
Keyword(s):  
Crack Growth ◽  
Polymer Nanocomposite ◽  
Reinforced Polymer

Crack growth analysis of carbon nanotube reinforced polymer nanocomposite using extended finite element method

2018 ◽  
Vol 233 (5) ◽  
pp. 1750-1770 ◽  
Author(s):  
Alok Negi ◽  
Gagandeep Bhardwaj ◽  
JS Saini ◽  
Neeraj Grover
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Carbon Nanotube ◽  
Crack Growth ◽  
Growth Analysis ◽  
Extended Finite Element Method ◽  
Polymer Nanocomposite ◽  
Extended Finite Element ◽  
Reinforced Polymer ◽  
Element Method

In this work, the crack growth analysis of carbon nanotube reinforced polymer nanocomposite has been performed using extended finite element method. The equivalent properties such as elastic modulus, Poisson’s ratio, fracture energy, and fracture toughness of the polymer nanocomposites have been evaluated by varying the percentage of carbon nanotube in terms of weight (both single-walled carbon nanotube and multi-walled carbon nanotube) in the polymer matrix. The elastic modulus of the polymer nanocomposite has been evaluated using modified Halpin–Tsai equation. The fracture energy of the polymer nanocomposite has been computed considering carbon nanotube pull-out and carbon nanotube debonding as the main toughening criterion. In the extended finite element method, the crack faces are modeled by discontinuous Heaviside jump functions, whereas the singularity in the stress field at the crack tip is modeled by crack tip enrichment functions. The value of stress intensity factor is evaluated using the domain form of interaction integral. The level set method has been used to track the crack growth. The numerical examples with an edge and a center crack in the polymer nanocomposite are analyzed and the influence of various parameters such as percentage of carbon nanotube and the aspect ratio on stress intensity factor are observed.

Fatigue of a Nanocomposite Laminate

2008 ◽  
Author(s):  
Justin W. Wilkerson ◽  
Jiang Zhu ◽  
Daniel C. Davis
Keyword(s):  
Carbon Nanotubes ◽  
Polymer Nanocomposite ◽  
Weight Percent ◽  
Fiber Reinforced Polymer ◽  
Carbon Fiber Reinforced Polymer ◽  
Carbon Fabric ◽  
Molding Process ◽  
Functionalized Carbon Nanotubes ◽  
Multi Scale ◽  
Reinforced Polymer

A multi-scale carbon fiber reinforced polymer nanocomposite laminate, with strategically incorporated fluorine functionalized carbon nanotubes at 0.2 weight percent, is studied for improvements in strength, stiffness and fatigue life under both tension-tension fatigue (R = +0.1) and tension-compression fatigue (R = −0.1) loading. The nanotubes were incorporated into the carbon fabric, and laminates were fabricated using a high temperature vacuum assisted resin transfer molding process. The influence of the fluorinated functionalized carbon nanotubes on the evolution of damage and the resistance to catastrophic failure is credited for these mechanical property improvements.

A study on wear properties of SWCNT reinforced polymer nanocomposite

2019 ◽  
Author(s):  
Pavana Kumara Bellairu ◽  
Shreeranga Bhat ◽  
Karthik Madhyastha
Keyword(s):  
Polymer Nanocomposite ◽  
Wear Properties ◽  
Reinforced Polymer

Montmorillonite reinforced polymer nanocomposite antibacterial film

2015 ◽  
Vol 108 ◽  
pp. 40-44 ◽  
Author(s):  
Lemiye A. Savas ◽  
Mehmet Hancer
Keyword(s):  
Polymer Nanocomposite ◽  
Reinforced Polymer

2D filler-reinforced polymer nanocomposite dielectrics for high-k dielectric and energy storage applications

2021 ◽  
Vol 34 ◽  
pp. 260-281
Author(s):  
Jin Hu ◽  
Shufen Zhang ◽  
Bingtao Tang
Keyword(s):  
Energy Storage ◽  
Polymer Nanocomposite ◽  
Reinforced Polymer ◽  
High K ◽  
Energy Storage Applications ◽  
High K Dielectric

Tridimensional Microstructures of C-SWNT Reinforced Polymer Nanocomposite by Means of a Microfluidic Infiltration Approach

2007 ◽  
Vol 1056 ◽  
Author(s):  
Louis Laberge Lebel ◽  
Brahim Aissa ◽  
My Ali El Khakani ◽  
Daniel Therriault
Keyword(s):  
Loss Modulus ◽  
Three Dimensional ◽  
Polymer Nanocomposite ◽  
Mechanical Tests ◽  
Uv Curable ◽  
Reinforced Polymer ◽  
Microfluidic Network ◽  
3D Network ◽  
Microfluidic Networks ◽  
Pure Resin

ABSTRACTThree-dimensional (3D) microstructures of single walled carbon nanotube (C-SWNT)/polymer nanocomposite are fabricated by the infiltration of 3D microfluidic networks. The microfluidic network was first fabricated by direct-write assembly which consists of the robotised deposition of fugitive ink filaments on an epoxy substrate to form a 3D microstructured network. After encapsulation of the deposited structure with an epoxy resin, the fugitive ink was removed by heating, resulting in a 3D network of microchannels. This microfluidic network is then infiltrated by a ultraviolet (UV) -curable polymer loaded with C-SWNTs. The C-SWNTs were produced by the UV-laser ablation method, physico-chemically purified and dispersed in a polymer matrix using ultrasonic treatment in dichloromethane. The C-SWNTs were characterized by means of high-resolution scanning electron microscopy and microRaman spectroscopy. The infiltrated nanocomposite (i.e., the C-SWNT reinforced polymer) is then cured under UV exposure and post-cured. The manufactured 3D microstructures were rectangular sandwich beams having an epoxy core and unidirectional nanocomposite fibers placed parallel to the beam axis, on both sides of the core. Flexural mechanical tests were performed on empty, pure resin and nanocomposite microfluidic beams using a dynamic mechanical analyzer. The achieved nanocomposite beams were found to show an increase of 5% in the storage modulus and more than 50% increase in the loss modulus, under 30°C compared to the pure resin beams. The nanocomposite infiltration of microfluidic networks is shown to be a promising approach to achieve 3D microstructures of reinforced nanocomposites.

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