Longitudinal Fracture Analysis of a Two-Dimensional Functionally Graded Beam

2017 4th International Conference on Advanced Materials, Mechanics and Structural Engineering

材料科学;机械制造

Rizov, V.^1

Department of Technical Mechanics, University of Architecture, Civil Engineering and Geodesy, Sofia

1046, Bulgaria^1

关键词: Appropriate materials;    Beam cross section;    Effects of materials;    Fracture analysis;    Fracture behaviour;    Functionally graded beams;    Longitudinal cracks;    Longitudinal force;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/269/1/012007/pdf
DOI  :  10.1088/1757-899X/269/1/012007

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Longitudinal fracture in a two-dimensional functionally graded beam is analyzed. The modulus of elasticity varies continuously in the beam cross-section. The beam is clamped in its right-hand end. The external loading consists of one longitudinal force applied at the free end of the lower crack arm. The longitudinal crack is located in the beam mid-plane. The fracture is studied in terms of the strain energy release rate. The solution derived is used to elucidate the effects of material gradients along the height as well as along the width of the beam cross-section on the fracture behaviour. The results obtained indicate that the fracture in two-dimensional functionally graded beams can be regulated efficiently by employing appropriate material gradients.