Sheet sensor using SrAl2O4:Eu mechanoluminescent material for visualizing inner crack of high-pressure hydrogen vessel

被引：81

作者：

Fujio, Yuki ^{[1
]}

Xu, Chao-Nan ^{[1
,2
]}

Terasawa, Yujin ^{[1
]}

Sakata, Yoshitaro ^{[1
]}

Yamabe, Junichiro ^{[2
,3
]}

Ueno, Naohiro ^{[4
]}

Terasaki, Nao ^{[1
]}

Yoshida, Akihito ^{[1
]}

Watanabe, Shogo ^{[5
]}

Murakami, Yukitaka ^{[6
]}

机构：

[1] Natl Inst Adv Ind Sci & Technol, Adv Mfg Res Inst, Saga 8410052, Japan

[2] Kyushu Univ, Int Inst Carbon Neutral Energy Res WPI I2CNER, Fukuoka 8190395, Japan

[3] Kyushu Univ, Int Res Ctr Hydrogen Energy, Fukuoka 8190395, Japan

[4] Saga Univ, Dept Adv Technol Fus, Grad Sch Sci & Engn, Saga 8408502, Japan

[5] Hydrogen Energy Test & Res Ctr, Fukuoka 8191133, Japan

[6] Kyushu Univ, Fukuoka 8190395, Japan

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2016年 / 41卷 / 02期

关键词：

Mechanoluminescent materials; Elasticoluminescence; Hydrogen storage cylinder; Inner crack visualization; Nondestructive evaluation technique; DYNAMIC VISUALIZATION; STRESS-DISTRIBUTION; FATIGUE; STORAGE; GROWTH; DEGRADATION; PROPAGATION; MECHANISM; BEHAVIOR; STEELS;

D O I：

10.1016/j.ijhydene.2015.10.073

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A new non-destructive evaluation technique to detect cracks emanating from the inner surface (inner cracks) of a high-pressure hydrogen storage cylinder was developed by means of mechanoluminescence (ML) sensor consisting of SrAl2O4:Eu ML material and epoxy resin. To visualize the inner crack, a sheet ML sensor was attached onto the outer surface of the storage cylinder subjected to hydraulic pressure cycling with the maximum pressure of 45 MPa. The ML pattern was changed with an increase in the cycle number and the ML sensor could visualize the inner crack. The stress analysis by the finite element method clarified that the ML sensor provided unique equivalent strain distribution associated with stress concentration at the crack tip, i.e. the distance between two points having high equivalent strains was inversely proportional to the crack depth; consequently, the growth behavior of the inner crack was non-destructively quantified with the ML sensor attached on the outer surface. Copyright (C) 2015, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：1333 / 1340

页数：8