Dynamic fracture investigation of concrete by a rate-dependent explicit phase field model integrating viscoelasticity and micro-viscosity

• Published in: Computer methods in applied mechanics and engineering Vol. 418; p. 116540
• Main Authors: Hai, Lu, Wriggers, Peter, Huang, Yu-jie, Zhang, Hui, Xu, Shi-lang
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.01.2024
• Subjects: Dynamic fracture mechanisms; Mesoscale concrete; Quasi-brittle materials; Rate dependence; Unified phase field theory; Dynamic fracture mechanisms; Mesoscale concrete; Rate dependence; Unified phase field theory; Quasi-brittle materials

•Propose a rate-dependent phase field model considering both viscoelasticity and micro-viscosity;.•Develop VUEL and VUMAT subroutines to integrate the model through explicit numerical solution schemes;.•Successfully predict dynamic tensile behaviour of quasi-brittle concrete material;.•Elucidate com...