Stochastic Micromechanical Damage Model for Porous Materials under Uniaxial Tension

AbstractDespite the ubiquity of porous materials, their mechanical behaviors (e.g., fracture) remain only partially understood. Here, we propose a novel analytical stochastic micromechanical damage model to describe the fracture of porous materials subjected to uniaxial tension. This analytical mode...

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Bibliographic Details
Published in:Journal of materials in civil engineering 2022-04, Vol.34 (4)
Main Authors: Rao, Fengrui, Tang, Longwen, Li, Yuhai, Ye, Guanbao, Hoover, Christian, Zhang, Zhen, Bauchy, Mathieu
Format: Article
Language:English
Subjects:
Building materials
Civil engineering
Damage assessment
Mathematical models
Model accuracy
Porous materials
Stress-strain curves
Technical Papers
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Summary:AbstractDespite the ubiquity of porous materials, their mechanical behaviors (e.g., fracture) remain only partially understood. Here, we propose a novel analytical stochastic micromechanical damage model to describe the fracture of porous materials subjected to uniaxial tension. This analytical model relies on parallel elastic and plastic elements to describe the nonlinear stress–strain curve of porous phases. We then develop a stochastic damage model to describe the propagation of randomly scattered voids or microflaws. This model allows us to identify the key influential features that govern the failure of porous materials. Finally, we demonstrate the accuracy of our model by validating its outcomes by a series of peridynamic simulations.
ISSN:0899-1561
1943-5533
DOI:10.1061/(ASCE)MT.1943-5533.0004146