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Continuum Mechanics and Thermodynamics

, Volume 31, Issue 1, pp 317–329 | Cite as

Constitutive modeling of randomly oriented electrospun nanofibrous membranes

  • Dannee Wong
  • Erwan Verron
  • Andri AndriyanaEmail author
  • Bee Chin Ang
Original Article
First Online:
  • 35 Downloads

Abstract

In this paper, a simple phenomenological model describing the macroscopic mechanical response of electrospun nanofibrous structures is proposed. Motivated by the experimental observation, the model development starts from the description of membrane response at fiber scale in order to capture individual fiber response and irreversible inter-fiber interactions using hyperelastic and large strain elasto-plastic frameworks, respectively. The macroscopic response is subsequently obtained by integrating the fiber responses in all possible fiber orientations. The efficiency of the proposed model is assessed using experimental data of PVDF electrospun nanofibrous membranes. It is found that the model is qualitatively in good agreement with uniaxial monotonic and cyclic tensile loading tests. Two other deformation modes, i.e., equibiaxial extension and pure shear (planar extension), are simulated to further evaluate the model responses. Finally, the deformation-induced fiber re-orientation is investigated for different modes of deformations.

Keywords

Constitutive modeling Nanofiber Membrane Mechanical response Large deformation Electrospinning 
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© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Centre of Advanced Materials, Department of Mechanical Engineering, Faculty of EngineeringUniversity of MalayaKuala LumpurMalaysia
  2. 2.Centre of Advanced Materials, Department of Chemical Engineering, Faculty of EngineeringUniversity of MalayaKuala LumpurMalaysia
  3. 3.École Centrale de Nantes, GeMUMR CNRS 6183NantesFrance

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