Results 21 to 30 of about 20,397,556 (300)

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

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

Ultrasonic C-Scan Inspection Of Composite Materials [PDF]

, 1992
Ultrasonic technique using an automated C-scan has been established as the primary inspection method for composite materials. In this paper, the principles of ultrasonic inspection, the type of defects that may be generated during fabrication and/or ...
Fahr, A.
core   +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
doaj   +1 more source

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
doaj   +1 more source

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

Internal Cylinder Identification Based on Different Transmission of Longitudinal and Shear Ultrasonic Waves

Sensors, 2021
We have built a Fizeau fiber interferometer to investigate the internal cylindrical defects in an aluminum plate based on laser ultrasonic techniques. The ultrasound is excited in the plate by a Q-switched Nd:YAG laser. When the ultrasonic waves interact
Wen-Bei Liu, Wen-Bo Yan, Huan Liu, Cheng-Guo Tong, Ya-Xian Fan, Zhi-Yong Tao   +5 more
doaj   +1 more source

Functional comparison of EncB and EncC cargo proteins in iron storage within the Myxococcus xanthus encapsulin

FEBS Letters, EarlyView.
Encapsulins are protein nanocompartments that play an important role in iron storage. In the Myxococcus xanthus encapsulin system, two cargo proteins called EncB and EncC contribute to iron mineralization. Here, we show that EncB and EncC generate iron‐containing minerals with distinct chemical compositions, suggesting that the composition of stored ...
Harry B. McDowell, Thomas Walther, Egbert Hoiczyk   +2 more
wiley   +1 more source

Index based triangulation method for efficient generation of large three-dimensional ultrasonic C-scans [PDF]

, 2018
The demand for high speed ultrasonic scanning of large and complex components is driven by a desire to reduce production bottlenecks during the non-destructive evaluation of critical parts.
R Summan, Summan, Rahul, J Riise, Pierce, S. Gareth, C Mineo, MacLeod, Charles N., Mineo, Carmelo, C N MacLeod, S G Pierce, Riise, Jonathan, Summan R., Riise J, Summan R, Mineo C., Pierce S G, MacLeod C N, Mineo C, MacLeod C. N., Pierce S. G., Riise J.   +19 more
core   +2 more sources