Session: NDE-01-01 Emerging Non-Destructive Evaluation and Prognostic Techniques and Applications

Paper Number: 84132

84132 - Research on Defect Detection of Fully-Wrapped Carbon Fiber Reinforced Hydrogen Storage Cylinder With an Aluminum Liner by Industrial Computed Tomography 

Compared with traditional fossil energy, hydrogen energy has the advantages of environmental protection and no carbon emission. The application of hydrogen fuel cell vehicle is one of the main ways of hydrogen energy use. Currently, on-board storage cylinders of compressed hydrogen for land vehicles predominantly use fully-wrapped carbon fiber reinforced cylinders, including aluminum liner, carbon fiber composite reinforcement layer and glass fiber composite protective layer from inside to outside. Due to the multi-layer structure of the hydrogen storage cylinder, its nondestructive testing is facing great challenges and the nondestructive testing methods given in the standard are mainly internal and external surface testing by using visual inspection or endoscope, causing that many internal defects cannot be identified. Industrial computed tomography can intuitively display three-dimensional information of the examined object from a great quantity of digital radiography images, and thus industrial computed tomography technology is considered as a promising tool to detect defects of the hydrogen storage cylinders. However, industrial computed tomography detection of hydrogen storage cylinders for commercial vehicles is rare. In this study, the loading system of the hydrogen storage cylinder, including limit plates, support blocks and support columns, was designed and manufactured. In addition, the corresponding scan and three-dimensional image reconstruction methods were established, and the defects of the hydrogen storage cylinder, such as hole and delamination defects with submillimeter size were clearly observed in computed tomography images.

Presenting Author: Yan Shi Zhejiang Academy of Special Equipment Science; Key Laboratory of Special Equipment Safety Testing Technology of Zhejiang Province

Presenting Author Biography: Shi Yan graduated from University of Science & Technology Beijing in 2015 with a bachelor's degree in material science and engineering and from Shanghai Jiaotong University in 2020 with a doctor's degree in material science and engineering. Since 2020, he has been engaged in nondestructive testing, life assessment, failure analysis and other research of special equipment in Zhejiang Academy of Special Equipment Science. In recent years, he has published 6 academic papers in the international journals such as Materials Science and Engineering: A, and Metallurgical and Materials Transactions A.

Authors:

Yan Shi Zhejiang Academy of Special Equipment Science; Key Laboratory of Special Equipment Safety Testing Technology of Zhejiang Province
Ping Tang Zhejiang Academy of Special Equipment Science; Key Laboratory of Special Equipment Safety Testing Technology of Zhejiang Province
Cunjian Miao Zhejiang Academy of Special Equipment Science; Key Laboratory of Special Equipment Safety Testing Technology of Zhejiang Province
Zhangwei Ling Zhejiang Academy of Special Equipment Science; Key Laboratory of Special Equipment Safety Testing Technology of Zhejiang Province
Weican Guo Zhejiang Academy of Special Equipment Science; Key Laboratory of Special Equipment Safety Testing Technology of Zhejiang Province
Xuefen Yu Zhejiang Academy of Special Equipment Science; Key Laboratory of Special Equipment Safety Testing Technology of Zhejiang Province