材料科学
随机建模
非线性系统
多孔介质
张力(地质)
断裂(地质)
多孔性
单轴张力
微观力学
复合材料
机械
结构工程
工程类
物理
数学
极限抗拉强度
统计
复合数
量子力学
作者
Fengrui Rao,Longwen Tang,Yuhai Li,Guanbao Ye,Christian G. Hoover,Zhen Zhang,Mathieu Bauchy
出处
期刊:Journal of Materials in Civil Engineering
[American Society of Civil Engineers]
日期:2022-04-01
卷期号:34 (4)
被引量:1
标识
DOI:10.1061/(asce)mt.1943-5533.0004146
摘要
Despite 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.
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