Experimental and numerical investigation on I–II mixed-mode fracture of concrete based on the Monte Carlo random aggregate distribution

2018 ◽  
Vol 191 ◽  
pp. 523-534 ◽  
Author(s):  
Guodong Li ◽  
Jiangjiang Yu ◽  
Peng Cao ◽  
Zhengyi Ren
Keyword(s):  
Monte Carlo ◽  
Numerical Investigation ◽  
Mixed Mode ◽  
Mixed Mode Fracture ◽  
Mode Fracture ◽  
Aggregate Distribution ◽  
Random Aggregate

scholarly journals A quasi-monolithic phase-field description for mixed-mode fracture using predictor–corrector mesh adaptivity

2021 ◽  
Author(s):  
Meng Fan ◽  
Yan Jin ◽  
Thomas Wick
Keyword(s):  
Phase Field ◽  
Mixed Mode ◽  
Splitting Method ◽  
Fracture Model ◽  
Mixed Mode Fracture ◽  
Energy Splitting ◽  
Mesh Adaptivity ◽  
Mode Fracture ◽  
New Model ◽  
Fracture Models

AbstractIn this work, we develop a mixed-mode phase-field fracture model employing a parallel-adaptive quasi-monolithic framework. In nature, failure of rocks and rock-like materials is usually accompanied by the propagation of mixed-mode fractures. To address this aspect, some recent studies have incorporated mixed-mode fracture propagation criteria to classical phase-field fracture models, and new energy splitting methods were proposed to split the total crack driving energy into mode-I and mode-II parts. As extension in this work, a splitting method for masonry-like materials is modified and incorporated into the mixed-mode phase-field fracture model. A robust, accurate and efficient parallel-adaptive quasi-monolithic framework serves as basis for the implementation of our new model. Three numerical tests are carried out, and the results of the new model are compared to those of existing models, demonstrating the numerical robustness and physical soundness of the new model. In total, six models are computationally analyzed and compared.

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