Experimental and modelling research on fatigue life of GFRP composite materials

2nd International Workshop on Materials Science and Mechanical Engineering

机械制造;材料科学

Liu, J.W.^1 ; Sun, Q.^2 ; Wang, X.^1 ; Peng, Y.L.^1 ; Wang, J.T.^2

Henan Electric Power Survey and Design Institute, West Zhongyuan Road No. 212, Henan Province, Zhengzhou

450007, China^1

Department of Civil Engineering, Xi'An Jiaotong University, West Xianning Road No. 28, Xi'an, Shaanxi Province

710049, China^2

关键词: Fatigue behaviour;    Fatigue loadings;    Glass fiber reinforced polymer;    Lattice towers;    Linear modeling;    Nodal points;    Non-linear model;    Three models;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/504/1/012026/pdf
DOI  :  10.1088/1757-899X/504/1/012026

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

To evaluate the fatigue behaviour of glass-fiber-reinforced polymers (GFRP), an experimental study was firstly carried out based on the up-downmethod. Then, the different predictionmodels, including linear model, nonlinear model and accumulated model, were utilized to modelling the fatigue life of GFRP composite materials, where the genetic algorithm (GA) was combined in the modelling procedure. The result reveals that the bond connecting the specimen with the clamp is the weakness under fatigue loading, thus the bond connecting the constructionmember in lattice tower with the fitting part in nodal points is the essential part that must be paid close attention to; the simulation results show that these three models whose parameters are assigned by using GA are satisfied well with the experimental data.