Nonsteady fracture of transient networks: The case of vitrimer Journal Article uri icon



  • Significance; This paper explores the unusual fracture behavior of vitrimers, a transient polymer network whose rupture displays various regimes including flow, crack propagation and arrest, controlled by loading rates. The existence of these regimes was not previously reported in the literature and cannot be explained by current fracture theories. This study therefore extends the fracture criterion to a time-dependent version and relates crack velocity in a vitrimer to the force-dependent kinetics of the bond exchange reaction. This framework not only successfully describes experimental results over a large range of loading conditions but also pinpoints the distinct roles of network kinetics and external loading on the deformation history of a pre-existing defect.

publication date

  • July 20, 2021

has restriction

  • bronze

Date in CU Experts

  • February 10, 2022 8:55 AM

Full Author List

  • Shen T; Song Z; Cai S; Vernerey FJ

author count

  • 4

Other Profiles

International Standard Serial Number (ISSN)

  • 0027-8424

Electronic International Standard Serial Number (EISSN)

  • 1091-6490

Additional Document Info


  • 118


  • 29