Fracture Analysis of Escalator Step and Comb Plate

2018 5th International Conference on Advanced Composite Materials and Manufacturing Engineering

Ren, Facai^1 ; Song, Yu^1 ; Liang, Xiao^1

Shanghai Institute of Special Equipment Inspection and Technical Research, Shanghai

200062, China^1

关键词: Different sizes;    Fracture analysis;    Fracture mode;    Overload fractures;    Porosity defects;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/394/3/032108/pdf
DOI  :  10.1088/1757-899X/394/3/032108

来源: IOP

【 摘 要 】

The escalator step fractured during applications. The causes for the fracture of escalator step and comb plate were investigated by means of macroscopic fractography, optical microscope and scanning electron microscope. The analysis results indicate that some porosity defects with different size distributed in the escalator step support. The fracture mode of escalator step is overload fracture.