The role of temperature in the rigidity-controlled fracture of elastic networks

Justin Tauber, Aimée R. Kok, Jasper Van Der Gucht*, Simone Dussi

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

We study the influence of thermal fluctuations on the fracture of elastic networks, via simulations of the uniaxial extension of central-force spring networks with varying rigidity. Studying their failure response, both at the macroscopic and microscopic level, we find that an increase in temperature corresponds to a more homogeneous stress (re)distribution and induces thermally activated failure of springs. As a consequence, the material strength decreases upon increasing temperature, the microscopic damage spreads over a larger area and a more ductile fracture process is observed. These effects are modulated by network rigidity and can therefore be tuned via the network connectivity and the rupture threshold of the springs. Knowledge of the interplay between temperature and rigidity improves our understanding of the fracture of elastic network materials, such as (biological) polymer networks, and can help to refine design principles for tough soft materials.

Original languageEnglish
Pages (from-to)9975-9985
Number of pages11
JournalSoft Matter
Volume16
Issue number43
DOIs
Publication statusPublished - 21 Nov 2020

Fingerprint Dive into the research topics of 'The role of temperature in the rigidity-controlled fracture of elastic networks'. Together they form a unique fingerprint.

Cite this