Delamination Analysis of a Multilayered Two-Dimensional Functionally Graded Cantilever 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: Arbitrary number;    Crack location;    Delamination crack;    Delamination fracture;    Functionally graded;    Functionally graded beams;    Material gradients;    Multi-layered;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/269/1/012008/pdf
DOI  :  10.1088/1757-899X/269/1/012008

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Delamination fracture behaviour of a multilayered two-dimensional functionally graded cantilever beam is analyzed in terms of the strain energy release rate. The beam is made of an arbitrary number of layers. Perfect adhesion is assumed between layers. Each layer has individual thickness and material properties. Besides, the material is two-dimensional functionally graded in the cross-section of each layer. There is a delamination crack located arbitrary between layers. The beam is loaded by a bending moment applied at the free end of the lower crack arm. The upper crack arm is free of stresses. The solution to strain energy release rate derived is applied to investigate the influence of the crack location and the material gradient on the delamination fracture. The results obtained can be used to optimize the multilayered two-dimensional functionally graded beam structure with respect to the delamination fracture behaviour.