Tensile fracture and failure properties of porous fuse network

This study investigates the tensile fracture and failure behavior of porous materials using fuse theory and the weighted Voronoi method. The research focuses on the effects of pore size, disorder level, and boundary conditions on the mechanical and statistical properties of these materials. Our results show that material strength improves with lower disorder levels and smaller pore sizes. Specifically, lower disorder reduces the likelihood of weak spots, enhancing strength, while smaller pore sizes reduce stress concentration, slowing crack growth. We also observe that boundary  conditions, particularly with periodic boundary conditions, reduce computational costs and limit boundary effects, making them ideal for accurate simulations. The study further examines the avalanche probability density distribution, finding that disorder significantly influences fracture behavior. Systems with higher disorder align with the power-law predictions of the ELS model, while low disorder systems exhibit a drop in scaling exponent, indicating more unstable crack growth. These findings emphasize the role of pore structure and disorder in determining the mechanical and statistical properties of porous materials and provide valuable insights for optimizing material design in various applications.