The effect of sizing optimization on the interface between high strength steel and fiber reinforced composite

被引：10

作者：

Alabtah, Fatima Ghassan ^{[1
]}

Mahdi, E. ^{[1
]}

机构：

[1] Qatar Univ, Dept Mech & Ind Engn, POB 2713, Doha, Qatar

来源：

COMPOSITE STRUCTURES | 2021年 / 266卷

关键词：

Fracture toughness; Interface; Fiber orientation; Fiber types; Steel; Stress intensity factors; MODE-I; DELAMINATION;

D O I：

10.1016/j.compstruct.2021.113740

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

This paper aims to examine fiber type and fiber orientation's effects on the interface bonding between steel and fiber-reinforced composites. To this end, fracture loads for modes I and II were experimentally determined. Three different composites were used: glass fibers/epoxy (GFRP), carbon fibers/epoxy (CFRP), and Kevlar fibers/epoxy (KFRP). Seven different fabric orientations were examined: 0 degrees, 15 degrees, 30 degrees, 45 degrees, 60 degrees, 75 degrees, and 90 degrees. End-notched flexure (ENF) and Double cantilever beam (DCB) tests were utilized to determine modes I and II fracture toughness, respectively. Results showed that fiber orientations and fiber types have significantly affected the interface bonding between the steel and fiber-reinforced composite. For both modes I and II tests, the CFRP/steel interface exhibited the highest toughness when comparing the different tested fabric types. However, when comparing the different tested fabric orientations for GFRP/Steel, the 0 degrees GFRP/Steel interface had the maximum toughness for modes I and II tests. All steel-composite specimens tested have shown matrix, debonding, fiber breakage, delamination, and fiber kinking using the scanning electron microscopic technique.

引用

页数：13

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