Investigating interfacial adhesion and open-hole compressive (OHC) strength correlations for CFRPs via variations in sizing and oxidative surface treatment

被引：5

作者：

Stojcevski, Filip ^{[1
]}

Hayne, David J. ^{[1
]}

Hilditch, Timothy B. ^{[2
]}

Henderson, Luke C. ^{[1
]}

机构：

[1] Deakin Univ, Inst Frontier Mat, Pigdons Rd,Waurn Ponds Campus, Geelong, Vic 3216, Australia

[2] Deakin Univ, Sch Engn, Pigdons Rd,Waurn Ponds Campus, Geelong, Vic 3216, Australia

来源：

COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING | 2021年 / 150卷

基金：

澳大利亚研究理事会;

关键词：

Open Hole Compression; Carbon Fiber; Interface; Surface Treatment; CARBON-FIBERS; FRACTURE-TOUGHNESS; SHEAR-STRENGTH; COMPOSITE; FAILURE; PERFORMANCE; IMPROVEMENT; BEHAVIOR;

D O I：

10.1016/j.compositesa.2021.106587

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Increasing interfacial shear strength (IFSS) has been observed to improve fracture toughness within carbon fiber/ epoxy laminates. However, a direct correlation between IFSS of carbon fiber surface treatments and open-hole compressive (OHC) strength has never been established. Here the effects of systematically altering electrochemical oxidation surface treatments (0, 2 and 3.4 Amps) and sizing deposition levels (Unsized, 1:15 and 1:20 dilution epoxy:water, respectively) to observe the correlation, if any, between microscale IFSS and laminate OHC strength. Increases in OHC strength of up to 30.2% relative to untreated and unsized fibers were observed and attributed to the surface treatments for sized fibers. No changes in OHC strength were observed when the surface treatment was altered for unsized fibers, suggesting a major role of the sizing in governing OHC strength. This is supported by OHC strength increases of up to 49.4% attributed to increased sizing deposition level.

引用

页数：8