Results 121 to 130 of about 52,181 (311)
Monitoring crack extension in fracture toughness tests by ultrasonics [PDF]
An ultrasonic method was used to observe the onset of crack extension and to monitor continued crack growth in fracture toughness specimens during three point bend tests.
Buzzard, R. J. +2 more
core +1 more source
An Implanted Tooth That Can Feel
Advanced Science, EarlyView.To endow the implanted tooth with masticatory perception, herein we demonstrate that a 3D‐printed piezoelectric‐core/robust‐sheath implanted tooth can rebuild the sensing feedback, serving as “mechanoreceptors” in converting the mechanical chewing force to electrical signals, and up to brain through surrounding alveolar nerve system.
Yaru Cao +13 more
wiley +1 more source
Shock and VibrationA nonlinear ultrasonic detection system, employing the wedge/transducer approach to excite and receive Rayleigh surface waves, has been devised for the purpose of detecting and evaluating corrosion fatigue damage in Q235A steel.
Yuanyuan Wang +3 more
doaj +1 more source
Research on Fatigue Damage of Compressor Blade Steel KMN-I Using Nonlinear Ultrasonic Testing
Shock and Vibration, 2017 The fatigue damage of compressor blade steel KMN-I was investigated using nonlinear ultrasonic testing and the relation curve between the material nonlinearity parameter β and the fatigue life was obtained.
Pengfei Wang, Weiqiang Wang, Jianfeng Li
doaj +1 more source
On the orthotropic elasto-plastic material response of additively manufactured polyamide 12 [PDF]
, 2016 The mechanical response of polymers such as polyamide 12 (PA-12) manufactured through additive manufac-turing, is significantly affected by the layered manufacturing approach and the printer settings used during the creation of the parts.
De Baere, Ives +2 more
core
Advanced Science, EarlyView.Schematic showing a stretchable triboelectric nanogenerator based on interlocked wavy architectures that uses EGaIn microflower‐embedded PVDF‐TrFE and Nylon‐6 nanofiber membranes. The multi‐petaled, electron‐rich EGaIn microflowers enhance interfacial polarization and capacitance, while the interlocked wavy architecture enlarges the effective contact ...
Qianqian Xu +12 more
wiley +1 more source
Crack growth around stress concentrations in pipes and tubes [PDF]
, 2012 Fatigue crack growth behaviour in pipes fundamentally differs from fatigue growth in shafts and flat plates. The aim of this paper is to give a better understanding of this phenomenon.
De Baets, Patrick +4 more
core
Advanced Science, EarlyView.This study developed a double‐network hydrogel with piezoelectric properties, exhibiting excellent antibacterial activity and promoting fibroblast migration, angiogenesis, and lymphangiogenesis through piezoelectric stimulation, thereby accelerating the healing of infected chronic wounds.
Xiang Li +7 more
wiley +1 more source
, 1993 The ultrasonic polishing process makes use of the high-frequency (ultrasonic) vibrations of an abradable tool which automatically conforms to the work piece and an abrasive slurry to finish surfaces and edges on complex, highly detailed, close tolerance ...
Gilmore, Randy
core +1 more source
Breaking the Toughness‐Stretchability Trade‐Off in Hydrogels with Dynamic Hydrogen Bonding
Advanced Science, EarlyView.A novel nanocomposite hydrogel architecture overcomes the inherent conflict between toughness and stretchability by integrating uniformly dispersed aminopropyl‐hybrid‐phyllosilicate nanosheets within a polyacrylamide matrix. This design leverages a dynamic hydrogen‐bonding network to facilitate efficient energy dissipation and self‐recovery.
Yining Gao +3 more
wiley +1 more source