Work

Study on the ratchetting behavior of glass fiber-reinforced epoxy composites: Experiment and theory

Year: 2022

Type: article

Abstract: To discuss the ratchetting behavior of short glass fiber-reinforced epoxy polymer composites, experimental and theoretical studies were carried out. The effects of the fiber content and peak stress on the ratchetting behavior of the composite materials were discussed. The results show that the ratchetting strain decreases with increasing fiber content and decreasing peak stress. It was also found that the residual strain after unloading partly recovers with time, which indicates that the ratchetting strain consists of viscoelastic strain and plastic strain. Based on the experimental results, a viscoelastic-viscoplastic constitutive model is proposed, which can well simulate the ratchetting behavior and strain recovery of composites with different fiber contents.

Source: Polymer Testing

DOI: 10.1016/j.polymertesting.2022.107875

Authors: Fucong Lu, Yuhang Hou, Bencheng Zhang, Long Huang, Fangping Qin, Di Song

Institutions: Guangxi University, University of Electronic Science and Technology of China

Language: English

Topic: Mechanical Behavior of Composites

Subfield: Mechanics of Materials

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,000

Funders: National Natural Science Foundation of China, Natural Science Foundation of Guangxi Province, Department of Science and Technology of Sichuan Province