Skip to main content
Top
Published in: Cellulose 1/2022

22-11-2021 | Original Research

Dynamic crack initiation and growth in cellulose nanopaper

Authors: Chengyun Miao, Haishun Du, Xinyu Zhang, Hareesh V. Tippur

Published in: Cellulose | Issue 1/2022

Log in

Activate our intelligent search to find suitable subject content or patents.

search-config
loading …

Abstract

Cellulose nanopaper (CNP) made of cellulose nanofibrils has gained extensive attention in recent years for its lightweight and superior mechanical properties alongside sustainable and green attributes. The mechanical characterization studies on CNP at the moment have generally been limited to tension tests. In fact, thus far there has not been any report on crack initiation and growth behavior, especially under dynamic loading conditions. In this work, crack initiation and growth in self-assembled CNP, made from filtration of CNF suspension, are studied using a full-field optical method. Dynamic crack initiation and growth behaviors and time-resolved fracture parameters are quantified using Digital Image Correlation technique. The challenge associated with dynamic loading of a thin strip of CNP has been overcome by an acrylic holder with a wide pre-cut slot bridged by edge-cracked CNP. The ultrahigh-speed digital photography is implemented to map in-plane deformations during pre- and post-crack initiation regimes including dynamic crack growth. Under stress wave loading conditions, macroscale crack growth occurs at surprisingly high-speed (600–700 m/s) in this microscopically fibrous material. The measured displacement fields from dynamic loading conditions are analyzed to extract stress intensity factors (SIF) and energy release rate (G) histories. The results show that the SIF at crack initiation is in the range of 6–7 MPa m1/2, far superior to many engineering plastics. Furthermore, the measured values increase during crack propagation under both low- and high-strain rates, demonstrating superior fracture resistance of CNP valuable for many structural applications.

Graphical abstract

Dont have a licence yet? Then find out more about our products and how to get one now:

Springer Professional "Technik"

Online-Abonnement

Mit Springer Professional "Technik" erhalten Sie Zugriff auf:

  • über 67.000 Bücher
  • über 390 Zeitschriften

aus folgenden Fachgebieten:

  • Automobil + Motoren
  • Bauwesen + Immobilien
  • Business IT + Informatik
  • Elektrotechnik + Elektronik
  • Energie + Nachhaltigkeit
  • Maschinenbau + Werkstoffe




 

Jetzt Wissensvorsprung sichern!

Springer Professional "Wirtschaft+Technik"

Online-Abonnement

Mit Springer Professional "Wirtschaft+Technik" erhalten Sie Zugriff auf:

  • über 102.000 Bücher
  • über 537 Zeitschriften

aus folgenden Fachgebieten:

  • Automobil + Motoren
  • Bauwesen + Immobilien
  • Business IT + Informatik
  • Elektrotechnik + Elektronik
  • Energie + Nachhaltigkeit
  • Finance + Banking
  • Management + Führung
  • Marketing + Vertrieb
  • Maschinenbau + Werkstoffe
  • Versicherung + Risiko

Jetzt Wissensvorsprung sichern!

Appendix
Available only for authorised users
Footnotes
1
Based on the nominal values of critical stress intensity factor (~6.3 MPam), yield stress (~50 MPa) and elastic modulus (~10.5 GPa), the estimated critical crack tip opening displacement under plane stress conditions is ~90 μm, higher than the initial notch tip root radius suggesting blunting.
 
Literature
go back to reference Ravi-Chandar K (2004) Dynamic fracture. Elsevier, San Diego Ravi-Chandar K (2004) Dynamic fracture. Elsevier, San Diego
go back to reference Sutton MA, Orteu J-J, Schreier H (2009) Image correlation for shape, motion and deformation measurements: basic concepts, theory and applications, 1st edn. Springer Publishing Company, Incorporated Sutton MA, Orteu J-J, Schreier H (2009) Image correlation for shape, motion and deformation measurements: basic concepts, theory and applications, 1st edn. Springer Publishing Company, Incorporated
go back to reference Wang Q, Du H, Zhang F et al (2018) Flexible cellulose nanopaper with high wet tensile strength, high toughness and tunable ultraviolet blocking ability fabricated from tobacco stalk: via a sustainable method. J Mater Chem A 6:13021–13030. https://doi.org/10.1039/c8ta01986jCrossRef Wang Q, Du H, Zhang F et al (2018) Flexible cellulose nanopaper with high wet tensile strength, high toughness and tunable ultraviolet blocking ability fabricated from tobacco stalk: via a sustainable method. J Mater Chem A 6:13021–13030. https://​doi.​org/​10.​1039/​c8ta01986jCrossRef
Metadata
Title
Dynamic crack initiation and growth in cellulose nanopaper
Authors
Chengyun Miao
Haishun Du
Xinyu Zhang
Hareesh V. Tippur
Publication date
22-11-2021
Publisher
Springer Netherlands
Published in
Cellulose / Issue 1/2022
Print ISSN: 0969-0239
Electronic ISSN: 1572-882X
DOI
https://doi.org/10.1007/s10570-021-04310-x

Other articles of this Issue 1/2022

Cellulose 1/2022 Go to the issue