Modelling of time‐dependent fatigue crack growth of hydrogels

The service life of hydrogel-based devices is strongly influenced by the anti-fatigue capability hydrogels. While recent advancements in synthesis hydrogels have improved their fatigue resistance, underlying mechanisms that dominate time-dependent crack growth are still poorly understood. In this study, a computational method developed to predict A physics-based poro-visco-hyperelastic model within framework Theory Porous Media at finite strains describe mechanical behaviour Bell model-based chain evolution law adopted breaking/reforming kinetics physical chains. An energy-based proposed averaged elastic energy density surrounding tip calculated as driving force growth. effects viscoelasticity, and fluid transport on analysed. results indicate these cannot be ignored predicting