Micromechanical modelling of carbon nanotube reinforced composite materials with a functionally graded interphase

Download

0021998319857126.pdf

Date

2019-12-01

Author

Taç, Vahidullah
Gürses, Ercan

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

207
views

281
downloads

This paper introduces a new method of determining the mechanical properties of carbon nanotube-polymer composites using a multi-inclusion micromechanical model with functionally graded phases. The nanocomposite was divided into four regions of distinct mechanical properties; the carbon nanotube, the interface, the interphase and bulk polymer. The carbon nanotube and the interface were later combined into one effective fiber using a finite element model. The interphase was modelled in a functionally graded manner to reflect the true nature of the portion of the polymer surrounding the carbon nanotube. The three phases of effective fiber, interphase and bulk polymer were then used in the micromechanical model to arrive at the mechanical properties of the nanocomposite. An orientation averaging integration was then applied on the results to better reflect macroscopic response of nanocomposites with randomly oriented nanotubes. The results were compared to other numerical and experimental findings in the literature.

Subject Keywords

Mechanical Engineering, Materials Chemistry, Mechanics of Materials, Ceramics and Composites

URI

https://hdl.handle.net/11511/47713

Journal

Journal of Composite Materials

DOI

https://doi.org/10.1177/0021998319857126

Collections

Department of Aerospace Engineering, Article

Suggestions

OpenMETU
Core

Micromechanical Modelling of Carbon Nanotube Reinforced Composite Materials with a Functionally Graded Interphase Gülaşık, Hasan; Göktepe, Serdar; Gürses, Ercan (null; 2018-10-10) This paper introduces a new method of determining the mechanical properties of carbon nanotube-polymer composites using a multi-inclusion micromechanical model with functionally graded phases. The nanocomposite was divided into four regions of distinct mechanical properties; the carbon nanotube, the interface, the interphase and bulk polymer. The carbon nanotube and the interface were later combined into one effective fiber using a finite element model. The interphase was modelled in a functionally graded m...
Contribution of carbon nanotubes to vibration damping behavior of epoxy and its carbon fiber composites Avil, Esma; Kadioglu, Ferhat; Kaynak, Cevdet (SAGE Publications, 2020-04-01) The main objective of this study was to investigate contribution of the non-functionalized multi-walled carbon nanotubes on the vibration damping behavior of first neat epoxy resin and then unidirectional and bidirectional continuous carbon fiber reinforced epoxy matrix composites. Epoxy/carbon nanotubes nanocomposites were produced by ultrasonic solution mixing method, while the continuous carbon fiber reinforced composite laminates were obtained via resin-infusion technique. Vibration analysis data of the...
Microstructural and texture evolution during thermo-hydrogen processing of Ti6Al4V alloys produced by electron beam melting Dogu, Merve Nur; ESEN, ZİYA; Davut, Kemal; Tan, Evren; Gumus, Berkay; Dericioğlu, Arcan Fehmi (Elsevier BV, 2020-10-01) The present study was conducted to reveal the effects of building angles and post heat-treatments (2-step Thermo-Hydrogen Processing (THP) and conventional annealing treatment) on the density, microstructure and texture of Ti6Al4V alloy parts produced by Electron Beam Melting (EBM). The results showed that regardless of the building angle; the density, microstructure and crystallographic texture (defined with respect to building angle) of the as-produced samples were identical; having Widmanstatten a struct...
The effects of tine coupling and geometrical imperfections on the response of DETF resonators Azgın, Kıvanç (IOP Publishing, 2013-12-01) This paper presents a two-degree-of-freedom analytical model for the electromechanical response of double ended tuning fork (DETF) force sensors. The model describes the mechanical interaction between the tines and allows investigation of the effect of a number of asymmetries, in tine stiffness, mass, electromechanical parameters and load sharing between the tines. These asymmetries are introduced during fabrication (e. g., as a result of undercut) and are impossible to completely eliminate in a practical d...
An Approach for the Evaluation of Effective Elastic Properties of Honeycomb Cores by Finite Element Analysis of Sandwich Panels Aydincak, Ilke; Kayran, Altan (SAGE Publications, 2009-09-01) Different detailed finite element model alternatives are developed to come up with the most reliable finite element model of the sandwich panel, with the actual honeycomb core geometry, to evaluate the existing equivalent continuum models of aluminum honeycomb cores. Finite element models of sandwich panels with effective elastic constants of the honeycomb core are generated based on the existing continuum models of the honeycomb core. The evaluation of the effective elastic constants of honeycomb cores is ...

Citation Formats

V. Taç and E. Gürses, “Micromechanical modelling of carbon nanotube reinforced composite materials with a functionally graded interphase,” Journal of Composite Materials, pp. 4337–4348, 2019, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/47713.