Computational Multiscale Analysis for Interlaminar Reinforcement of Composite Laminates with Radially Grown Carbon Nanotube Architecture

2019 ◽  
Author(s):  
Karthik Rajan Venkatesan ◽  
Aditi Chattopadhyay
Keyword(s):  
Carbon Nanotube ◽  
Composite Laminates ◽  
Multiscale Analysis

Environmental degradation of carbon nanotube-modified composite laminates: a study of electrical resistivity

2009 ◽  
Vol 45 (1) ◽  
pp. 21-32 ◽  
Author(s):  
N. M. Barkoula ◽  
A. Paipetis ◽  
T. Matikas ◽  
A. Vavouliotis ◽  
P. Karapappas ◽  
...  
Keyword(s):  
Electrical Resistivity ◽  
Carbon Nanotube ◽  
Environmental Degradation ◽  
Composite Laminates

scholarly journals Synergetic effects of thin plies and aligned carbon nanotube interlaminar reinforcement in composite laminates

2018 ◽  
Vol 166 ◽  
pp. 160-168 ◽  
Author(s):  
Estelle Kalfon-Cohen ◽  
Reed Kopp ◽  
Carolina Furtado ◽  
Xinchen Ni ◽  
Albertino Arteiro ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Composite Laminates ◽  
Synergetic Effects

Lightning strike damage on the composite laminates with carbon nanotube films: Protection effect and damage mechanism

2019 ◽  
Vol 168 ◽  
pp. 342-352 ◽  
Author(s):  
Jikui Zhang ◽  
Xianglin Zhang ◽  
Xiaoquan Cheng ◽  
Yanwei Hei ◽  
Liying Xing ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Composite Laminates ◽  
Damage Mechanism ◽  
Lightning Strike ◽  
Protection Effect ◽  
Nanotube Films

scholarly journals Finite element nonlinear transient modelling of carbon nanotubes reinforced fiber/polymer composite spherical shells with a cutout

2019 ◽  
Vol 8 (1) ◽  
pp. 444-451 ◽  
Author(s):  
Sang-Youl Lee ◽  
Ji-Gwang Hwang
Keyword(s):  
Carbon Nanotube ◽  
Polymer Composite ◽  
Nonlinear Dynamic ◽  
Multiscale Analysis ◽  
Plate Theory ◽  
Spherical Shells ◽  
Carbon Nanotube Fiber ◽  
Nonlinear Transient ◽  
Reinforced Fiber ◽  
Raphson Iteration

Abstract This study dealt with geometrically nonlinear transient behaviors of carbon nanotube/fiber/polymer composite (CNTFPC) spherical shells containing a central cutout. A multiscale analysis using the Hewitt and Malherbe model was performed to determine the carbon nanotube (CNT)weight ratios, thickness-radius ratios, thickness-length ratios of CNTs, and cutout sizes. Based on the first-order shear deformation plate theory (FSDT),the Newmark method and Newton-Raphson iteration were used for the nonlinear dynamic solution. The proposed approach in this study has been verified by previous studies. Parametric results showed the significance of a proper CNT ratio and curvature for better structural performance on the nonlinear dynamic behaviors of CNTFPC spherical shells with a cutout.

Multiscale analysis of carbon nanotube-reinforced nanofiber scaffolds

2011 ◽  
Vol 93 (2) ◽  
pp. 1008-1014 ◽  
Author(s):  
V.U. Unnikrishnan ◽  
G.U. Unnikrishnan ◽  
J.N. Reddy
Keyword(s):  
Carbon Nanotube ◽  
Multiscale Analysis ◽  
Nanofiber Scaffolds

Interlaminar Tensile Strength of CFRP Composites Reinforced With Interleaved Carbon Nanotube Sheets

2014 ◽  
Author(s):  
Benjamin L. Levy-Wendt ◽  
Alaina M. Bever ◽  
Nicholaus C. Wright ◽  
Timothy J. Venable ◽  
John P. Dally ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Carbon Nanotube ◽  
Carbon Fiber ◽  
Composite Laminates ◽  
Specimen Thickness ◽  
Curved Beam ◽  
Bending Tests ◽  
Reinforced Polymer ◽  
Cfrp Composites ◽  
Beam Bending

Unidirectional carbon-fiber-reinforced polymer (CFRP) composites with interleaved carbon nanotube (CNT) sheets were manufactured using a heated press. The effect of CNT sheets on the interlaminar tensile strength (ILTS) of composite laminates was measured using curved beam bending tests. Two sets of [0]24 T800S/3900-2B specimen were prepared using carbon fiber prepregs and non-woven CNT sheets, with specimen thickness and radial geometries conforming to ASTM D6415. Epoxy resin loaded CNT sheets were inserted in the mid-radius region of curved beam specimens during the lay-up process. The measured interlaminar tensile strengths (ILTS) were compared between the CNT-enhanced and baseline CFRP specimens. Specimen fracture surfaces were examined with optical microscopy to determine the mode of failure and to confirm that fracture occurred at the location with the highest radial stresses. CNT sheet enhancements have shown to improve ILTS by 42%, with all failures initiating at the CNT interlayer and the polymer matrix interface.

Interlaminar fracture toughness of woven fabric composite laminates with carbon nanotube/epoxy interleaf films

2011 ◽  
Vol 121 (4) ◽  
pp. 2394-2405 ◽  
Author(s):  
Ryan J. Sager ◽  
Patrick J. Klein ◽  
Daniel C. Davis ◽  
Dimitris C. Lagoudas ◽  
Graham L. Warren ◽  
...  
Keyword(s):  
Fracture Toughness ◽  
Carbon Nanotube ◽  
Composite Laminates ◽  
Woven Fabric ◽  
Interlaminar Fracture Toughness ◽  
Interlaminar Fracture ◽  
Fabric Composite

scholarly journals Multiscale Analysis of the Interfacial Mechanical Behavior for Composite of Carbon Nanotube andα-Alumina

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Tingting Yan ◽  
Gaofeng Wei
Keyword(s):  
Carbon Nanotube ◽  
Mechanical Behavior ◽  
Multiscale Analysis ◽  
Cox Model ◽  
Van Der Waals ◽  
Stress Transfer ◽  
Multiscale Methods ◽  
Van Der Waals Interaction ◽  
Cohesive Law ◽  
The Relationship

Based on multiscale methods the mechanical behavior for the interface of carbon nanotube andα-alumina is analyzed. The stress transfer between nanotube and alumina is provided by van der Waals interaction. Using cohesive law the relationship between normal stress (shear stress) and displacement is studied, as well as the stress intensity. The stress distribution of the interface is obtained by improved COX model. The strain rate of nanotube-composite is presented when the interfacial slip occurs through the van der Waals interaction.

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