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Influence of interphase characteristics on the elastic modulus of unidirectional glass-reinforced epoxy composites: a computational micromechanics study

  • Shubham EMAIL logo , Rajesh Kumar Prusty and Bankim Chandra Ray
Published/Copyright: April 12, 2023
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 114 Issue 4-5

Abstract

This article briefly discusses the role of interphase in the elastic moduli of unidirectional fiber-reinforced polymer composite materials. For this unidirectional glass fiber was chosen as reinforcement, and epoxy was selected as the matrix. A hexagonally packed representative volume element is used for the micromechanical analysis. Experimental validation was initially used to verify the accuracy of the established equations of the rule of mixing, Composite Cylinder Assemblage, Chamis, Halpin and Tsai, and Puck. The Chamis equation was found to be the most reasonable. Then the finite element approach in which interphase has been included was used to estimate the elastic moduli. The finite element model without interphase and the experimental result were taken as a reference. The influence of interface ratio and property of interphase on the homogenised elastic properties of the unidirectional fiber-reinforced polymer composites is analysed. A micromechanics plugin in Abaqus software was used to estimate the density and Young’s modulus of the unidirectional fiber-reinforced polymer composites. The interphase properties are varied, having 6.25%, 12.5%, 25% and 50% influence of the fiber phase and the remaining influence of the matrix phase with interface ratios of 0.1, 0.2 and 0.3. The interface ratio of 0.3, having 6.25% fiber phase influence, gave the most reasonable moduli values (with an error <10%) compared to the mean experimental moduli. The study showed interface ratio and interphase properties to critically influence the overall elastic property of the unidirectional fiber-reinforced polymer composites.

Keywords: Fiber-reinforced polymer; Interphase; Micromechanics; Representative volume element; Unidirectional composite
Corresponding author: Shubham, FRP Composite Laboratory, Department of Metallurgical and Materials Engineering, National Institute of Technology, Rourkela 769008, India, E-mail:

Funding source: National Institute of Technology Rourkela

Award Identifier / Grant number: Unassigned

Acknowledgements

The technical assistance of Mr. Rajesh Patnaik was also greatly appreciated.

  1. Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.

  2. Research funding: The authors are grateful to the National Institute of Technology Rourkela in India for their financial and infrastructural support for this project.

  3. Conflict of interest statement: The authors declare no conflicts of interest regarding this article.

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Received: 2022-01-28
Accepted: 2022-07-29
Published Online: 2023-04-12
Published in Print: 2023-04-25

© 2023 Walter de Gruyter GmbH, Berlin/Boston

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https://doi.org/10.1515/ijmr-2022-0032
Keywords for this article
Fiber-reinforced polymer; Interphase; Micromechanics; Representative volume element; Unidirectional composite

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  1. Frontmatter
  2. Editorial
  3. Editorial ICPCM 2021
  4. Original Papers
  5. Developing easy-to-use, cost-effective wound dressing material by coating commercial cotton bandages with nanomaterials
  6. Temperature and magnetic field controlled dielectric relaxation and magnetodielectric response in KBiFe1.9Co0.1O5 polycrystalline
  7. Influence of thermo-mechanical treatment in austenitic and ferritic field condition on microstructural and mechanical properties of reduced activation ferritic-martensitic steel
  8. Effect of nanoparticle on mechanical properties of activated tungsten gas welding of austenite stainless steel 316L and optimization of process parameters
  9. Flexural behavior of carbon/glass inter-ply hybrid FRP composites under elevated temperature environments
  10. Surfactant assisted single step electrodeposition of CuInSe2 thin films with rich indium selenide surface over layer
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  13. Influence of interphase characteristics on the elastic modulus of unidirectional glass-reinforced epoxy composites: a computational micromechanics study
  14. Investigation of dielectric, impedance, and magnetodielectric behavior in Bi5Ti3FeO15–Bi2Fe4O9 composites prepared by sol–gel modified method
  15. Effect of spheroidization annealing on low cycle fatigue (LCF) characteristics of cold forged steel components
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  17. Phase formation and electrical properties study of PVDF thick films synthesized by solution casting method
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  27. Development of Al–SiC–TiO2 hybrid composite using powder metallurgy route and the influence of TiO2 content variation on microstructure and mechanical properties
  28. News
  29. DGM – Deutsche Gesellschaft für Materialkunde
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