Results 11 to 20 of about 39,338 (264)

Intelligent damage recognition of composite materials based on deep learning and ultrasonic testing

AIP Advances, 2021
Ultrasonic non-destructive testing can effectively detect damage in aircraft composite materials, but traditional manual testing is time-consuming and labor-intensive.
Caizhi Li, Weifeng He, Xiangfan Nie, Xiaolong Wei, Hanyi Guo, Xin Wu, Haojun Xu, Tiejun Zhang, Xinyu Liu   +8 more
doaj   +1 more source

Development and Investigation of High-Temperature Ultrasonic Measurement Transducers Resistant to Multiple Heating–Cooling Cycles

Sensors, 2023
Usually for non-destructive testing at high temperatures, ultrasonic transducers made of PZT and silver electrodes are used, but this could lead to damage to or malfunction of the ultrasonic transducer due to poor adhesion between PZT and silver ...
Vaida Vaskeliene, Reimondas Sliteris, Rymantas Jonas Kazys, Egidijus Zukauskas, Liudas Mazeika   +4 more
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Numerical Simulation and Experimental Study of Fluid-Solid Coupling-Based Air-Coupled Ultrasonic Detection of Stomata Defect of Lithium-Ion Battery

Sensors, 2019
Aiming at the characteristics of the periodic stacking structure of a lithium-ion battery core and the corresponding relationship between the air-coupled ultrasonic transmission initial wave and the wave propagation mode in each layer medium of a lithium-
Honggang Li, Zhenggan Zhou
doaj   +1 more source

Experiment and analysis of mechanical properties of carbon fiber composite laminates under impact compression

e-Polymers, 2022
Composite materials are more and more widely used in aircraft structural design, and impact damage is the most serious defect/damage form of aviation composite structures in service.
Yang Kang, Yang Li, Gong Peng, Zhang Liguo, Yue Yumei, Li Qunfang   +5 more
doaj   +1 more source

Nondestructive testing of composite T-Joints by TNDT and other methods

Polymer Testing, 2021
Detecting delaminations in the stringer foot areas of “T -joints” made of carbon fiber reinforced polymer (CFRP) composite is a challenging task for standard nondestructive testing (NDT) techniques.
Vladimir Vavilov, Arsenii Chulkov, Stanislav Dubinskii, Douglas Burleigh, Victor Shpilnoi, Daria Derusova, Vadim Zhvyrblia   +6 more
doaj   +1 more source

The effect of different structural designs on impact resistance to carbon fiber foam sandwich structures

e-Polymers, 2021
The development of the composite materials in the past decades has made the composite materials more and more widely used in various engineering fields.
Yang Kang, Gong Peng, Yang Li, Zhang Liguo, Zhang Ziao, Ma Gang   +5 more
doaj   +1 more source

Fully Convolutional Neural Network With GRU for 3D Braided Composite Material Flaw Detection

IEEE Access, 2019
Automated ultrasonic signal classification systems are often utilized for the recognition of a large number of ultrasonic signals in engineering materials.
Yongmin Guo, Zhitao Xiao, Lei Geng, Jun Wu, Fang Zhang, Yanbei Liu, Wen Wang   +6 more
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Effects of vacuum thermal cycle on low velocity impact properties of carbon fiber/BMI composites

Cailiao gongcheng, 2020
The T700/HT280 composites were subjected to vacuum thermal cycling (-140-180℃,10-3 Pa). The mass loss rate, dynamic mechanical properties and low-speed impact of composites were tested before and after vacuum thermal cycling respectively.
GAO Yu, LIU Jing, WANG Jin, WANG Bai-chen, CUI Xu, BAO Jian-wen   +5 more
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Non-destructive testing of interfacial stiffness based on spring model for diffusion bonding interface of titanium alloy components with complex surface

Scientific Reports, 2023
Ultrasonic testing is an important non-destructive testing method, which is sensitive to the defects in the diffusion bonding interface. Ultrasonic testing of diffusion bonding interfaces in complex-surface components is a challenge due to the geometry ...
Gongpeng Yang, Zhenggan Zhou, Tengfei Ma, Lichen Teng, Jun Wang, Yuxuan Zhou, Yang Li, Wenbin Zhou   +7 more
doaj   +1 more source

Detection and Imaging of Corrosion Defects in Steel Structures Based on Ultrasonic Digital Image Processing

Metals
Corrosion is one of the critical factors leading to the failure of steel structures. Ultrasonic C-scans are widely used to identify corrosion damage.
Dazhao Chi, Zhixian Xu, Haichun Liu
doaj   +1 more source