title: Predicting the mechanical properties of brittle porous materials with various porosity and pore sizes.
abstract: In this work, a micromechanical study using the lattice spring model (LSM) was performed to predict the mechanical properties of BPMs by simulation of the Brazilian test. Stress-strain curve and Weibull plot were analyzed for the determination of fracture strength and Weibull modulus. The presented model composed of linear elastic elements is capable of reproducing the non-linear behavior of BPMs resulting from the damage accumulation and provides consistent results which are in agreement with experimental measurements. Besides, it is also found that porosity shows significant impact on fracture strength while pore size dominates the Weibull modulus, which enables us to establish how choices made in the microstructure to meet the demand of brittle porous materials functioning in various operating conditions.
authors.affiliation: Key Laboratory of Specially Functional Polymeric Materials and Related Technology, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China.
authors.forename: Zhiwei
authors.initials: Z
authors.lastname: Cui
authors.affiliation: Key Laboratory of Specially Functional Polymeric Materials and Related Technology, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China. Electronic address: huangym@ecust.edu.cn.
authors.forename: Yongmin
authors.initials: Y
authors.lastname: Huang
authors.affiliation: Key Laboratory of Specially Functional Polymeric Materials and Related Technology, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China.
authors.forename: Honglai
authors.initials: H
authors.lastname: Liu
mesh_terms: D008422:Materials Testing; D016062:Porosity
keywords: Brittle fracture; Lattice spring model; Mechanical properties; Porosity; Weibull modulus