Subcritical crack growth and lifetime prediction of chemically strengthened aluminosilicate glass

被引：25

作者：

Jiang, Liangbao ^{[1
,2
,3
]}

Wang, Yi ^{[2
]}

Mohagheghian, Iman ^{[2
]}

Li, Xiaoyu ^{[1
,3
]}

Guo, Xintao ^{[1
,3
]}

Li, Lei ^{[1
,3
]}

Dear, John P. ^{[2
]}

Yan, Yue ^{[1
,3
]}

机构：

[1] Beijing Inst Aeronaut Mat, Beijing 100095, Peoples R China

[2] Imperial Coll London, Dept Mech Engn, South Kensington Campus, London SW7 2AZ, England

[3] Beijing Engn Res Ctr Adv Struct Transparencies Mo, Beijing 100095, Peoples R China

来源：

MATERIALS & DESIGN | 2017年 / 122卷

基金：

中国国家自然科学基金;

关键词：

Chemically strengthened glass; Subcritical crack growth; Lifetime prediction; STATIC FATIGUE LIMIT; FRACTURE-TOUGHNESS; STRESS-CORROSION; INDENTATION; PROPAGATION; RELAXATION; INITIATION;

D O I：

10.1016/j.matdes.2017.03.020

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effect of residual stress on subcritical crack growth in chemically strengthened aluminosilicate glass in air and water was firstly investigated using the double torsion (DT) technique. An experimental evaluation procedure was developed based on the DT method. The research demonstrates that high compressive stress (CS) and low central tension (CT) in chemically strengthened glass are beneficial in improving crack growth index and decreasing susceptibility to fatigue. Chemically strengthened glass with high CS and low CT exhibits a smaller proof-test ratio, which indicates better survival characteristics. The results are useful in designing the strength and optimizing the strengthening process by ion exchange to obtain a more robust glass with long service lifetime. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：128 / 135

页数：8

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