Identification of Localized Void Defects in Composite by Recurrence Quantification Analysis of Ultrasonic Backscattered Signal
- Авторлар: Wang Z.1,2, Yang C.1,2, Zhou X.1,2, Teng Y.1,2
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Мекемелер:
- The State Key Lab of Fluid Power and Mechatronic Systems
- Key Laboratory of Advanced Manufacturing Technology of Zhejiang Province, College of Mechanical Engineering
- Шығарылым: Том 55, № 3 (2019)
- Беттер: 192-201
- Бөлім: Acoustic Methods
- URL: https://journals.rcsi.science/1061-8309/article/view/182068
- DOI: https://doi.org/10.1134/S1061830919030112
- ID: 182068
Дәйексөз келтіру
Аннотация
Voids usually have a detrimental effect on the performance of carbon fiber reinforced polymer (CFRP). This paper presents a nonlinear dynamic method, known as recurrence quantification analysis (RQA), for the identification of localized void defects. First, five standard CFRP specimens with known porosity ranging from 0.2 to 5.94% are tested using ultrasonic pulse-echo technique, and the obtained backscattered signals are subsequently analyzed by RQA. The result shows that two RQA characteristic parameters, the recurrence rate and the Shannon entropy, both clearly increase with increasing porosity. Next, the RQA is performed on another CFRP specimen with unknown porosity. Two regions in this specimen containing localized void defects are detected based on the above finding. This result is finally verified by a destructive experiment. The research demonstrates that RQA is an effective new method for the identification of localized void defects in CFRP.
Негізгі сөздер
Авторлар туралы
Z. Wang
The State Key Lab of Fluid Power and Mechatronic Systems; Key Laboratory of Advanced Manufacturing Technology of Zhejiang Province, College of Mechanical Engineering
Хат алмасуға жауапты Автор.
Email: wzhe08@163.com
ҚХР, Hangzhou, 310027; Hangzhou, 310027
C. Yang
The State Key Lab of Fluid Power and Mechatronic Systems; Key Laboratory of Advanced Manufacturing Technology of Zhejiang Province, College of Mechanical Engineering
Хат алмасуға жауапты Автор.
Email: yclzju@163.com
ҚХР, Hangzhou, 310027; Hangzhou, 310027
X. Zhou
The State Key Lab of Fluid Power and Mechatronic Systems; Key Laboratory of Advanced Manufacturing Technology of Zhejiang Province, College of Mechanical Engineering
Email: yclzju@163.com
ҚХР, Hangzhou, 310027; Hangzhou, 310027
Y. Teng
The State Key Lab of Fluid Power and Mechatronic Systems; Key Laboratory of Advanced Manufacturing Technology of Zhejiang Province, College of Mechanical Engineering
Email: yclzju@163.com
ҚХР, Hangzhou, 310027; Hangzhou, 310027