Combined Experimental and Numerical Study on Fracture Behaviour of Low_Density Foamed Concrete

2017 5th International Conference on Mechanical Engineering, Materials Science and Civil Engineering

机械制造;材料科学;土木建筑工程

Kozlowski, M.^1 ; Kadela, M.^2

Silesian University of Technology, Faculty of Civil Engineering, Department of Structural Engineering, Akademicka 5, Gliwice, Poland^1

Building Research Institute (ITB), Filtrowa 1, Warsaw, Poland^2

关键词: Experimental and numerical studies;    Extended finite element method;    Fracture behaviour;    Fracture initiation;    Fracture property;    Load-displacement response;    Numerical investigations;    Three point bending;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/324/1/012031/pdf
DOI  :  10.1088/1757-899X/324/1/012031

来源: IOP

【 摘 要 】

The paper presents results of a combined experimental and numerical study on the fracture behaviour of low-density foamed concrete (3). A series of static tests was carried out on notched beams tested in three-point bending to determine the fracture properties of foamed concrete. Based on the load-displacement responses fracture energy and maximal tensile stress were evaluated. The paper also presents the results of numerical investigation of the fracture behaviour of notched beams using Extended Finite Element Method (XFEM). The numerical studies involve a simulation of fracture initiation and crack evolution in the notched beams subjected to three-point bending.