Results 21 to 30 of about 17,900,254 (159)
Total Focusing Method for Imaging Defect in CFRP Composite with Anisotropy and Inhomogeneity [PDF]
Fiber reinforced polymers (FRPs) are increasingly used in thick primary load-bearing structures, while manufacturing and in-service defects occur with a higher chance as the composite thickness increases, which entails the nondestructive detection and ...
Liu, Menglong +3 more
core
Phased array probe for the inspection of large steel forgings
Reliable inspection of large steel forgings is a significant problem across multiple industries. When the dimensions of forgings are at least 1000 mm in each direction, ultrasonic phased array inspection becomes difficult because conventional probes are ...
Frederic Dupont-Marillia +2 more
doaj +1 more source
Anisotropy Corrected FMC/TFM Based Phased Array Ultrasonic Imaging in an Austenitic Buttering Layer
For the narrow gap dissimilar weld between a ferritic steel and a nickel base superalloy, a nickel base alloy buttering layer is deposited on the ferritic steel side as an intermediate layer. The bonding between the buttering layer and the ferritic steel
S. Ponseenivasan +2 more
doaj +1 more source
TFM 2019/20. (MESOB) Especialidad de Inglés
Trabajos de Fin de Máster (MESOB) Especialidad de ...
AA. VV
core +1 more source
Research on defect quantification technique of Sparse array Total focusing method imaging based on Coherence factor weighting [PDF]
Additive manufacturing technology is widely used in key components in the aerospace field due to its high manufacturing freedom and high precision. However, in the process of internal quality inspection of products, the signal attenuation caused by ...
Da Kang +6 more
doaj +1 more source
Rician Beamforming: Despeckle Method via Coarray Projection Stochastic Analysis
Current computation capabilities normal, Delay and Sum (DAS) and Total Focusing Method (TFM) allow new definitions for beamformers. In this paper, a new beamforming method is proposed. It exploits diversity across pixel data after focusing process.
Virginia Yagüe-Jiménez +3 more
doaj +1 more source
Inspection for non-planar shaped welded joints of pipes using FMC ultrasonic technique
In applying ultrasonic testing (UT) to pipes with welded joints, one of the challenges is about the access limitation of UT probes caused by non-planar weld reinforcement profiles.
Sho Yamaguchi +2 more
doaj +1 more source
Comparison of Ultrasonic Methods for Detecting Defects in Unidirectional Composite Material
Non-destructive tests are of pivotal importance in the industry, as they contribute to the decreasing of maintenance costs, reducing downtime and accidents.
Vanessa Vieira Gonçalves +2 more
doaj +1 more source
Additive manufacturing (AM) is rapidly becoming a viable manufacturing method for industrial metallic parts. This is related to the benefits achieved, such as reducing material wastage, an increase in design freedom and weight savings.
C. Sofia Proença +3 more
doaj +1 more source
Plane wave imaging (PWI) is attracting more attention in industrial nondestructive testing and evaluation (NDT&E). To further improve imaging quality and reduce reconstruction time in ultrasonic imaging with a limited active aperture, an optimized PWI ...
Hao Sui +3 more
doaj +1 more source

