Results 71 to 80 of about 11,298 (262)

Damage evolution in the AlMg6 alloy during high and very high cycle fatigue

Fracture and Structural Integrity, 2019
Paper presents the in situ method for determining of irreversible fatigue damage accumulation, based on the analysis of nonlinear manifestations of the feedback signal in a closed system of an ultrasonic fatigue system.
Mikhail Bannikov, Dmitry Bilalov, Vladimir Oborin, Oleg Naimark   +3 more
doaj   +3 more sources

Microscale Mapping of Fiber Strain and Damage in Composite Wrinkled Laminates Using Computed Tomography Assisted Wide‐Angle X‐Ray Scattering

Advanced Science, EarlyView.
This study combines full‐field tomography with diffraction mapping to quantify radial (ε002$\varepsilon _{002}$) and axial (ε100$\varepsilon _{100}$) lattice strain in wrinkled carbon‐fiber specimens for the first time. Radial microstrain gradients (−14.5 µεMPa$\varepsilon \mathrm{MPa}$−1) are found to signal damage‐prone zones ahead of failure, which ...
Hoang Minh Luong, James Trevarthen, Igor Dolbnya, Wadwan Singhapong, Nicholas Pilato, Richard Butler, Jiraphant Srisuriyachot, Alexander J. G. Lunt   +7 more
wiley   +1 more source

Study on fracture behaviors of nanocomposite ceramics under a high cycle stress

Advances in Mechanical Engineering, 2016
In order to clarify the fracture behaviors of nanocomposite ceramics under ultrasonic vibration–aided grinding, the stress under ultrasonic was analyzed by non-local elastic theory.
Fan Chen, Bo Zhao, Xiaofeng Jia, Jinglin Tong   +3 more
doaj   +1 more source

A Novel Model of Ultrasonic Fatigue Test in Pure Bending. [PDF]

Materials (Basel), 2022
Yang D, Tang S, Hu Y, Nikitin A, Wang Q, Liu Y, Li L, He C, Li Y, Xu B, Wang C.   +10 more
europepmc   +1 more source

Wavy‐Interlocked Stretchable Triboelectric Nanogenerators Enhanced by Liquid Metal Microflowers for Self‐Powered Wearable Motion Monitoring

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, Huimin Li, Hanmin Zeng, Yahui Meng, Yimeng He, Xinke Hu, Senfeng Zhao, Jianxun Zhang, Peiqiong Zhou, Kechao Zhou, Dou Zhang, Chris Bowen, Yan Zhang   +12 more
wiley   +1 more source

Ultrasonic fatigue analysis of 3D-printed carbon fiber reinforced plastic. [PDF]

Heliyon, 2022
Jung CH, Kang Y, Song H, Lee MG, Jeon Y.
europepmc   +1 more source

Engineering Approaches to Modify Immunomodulatory Functions of Mesenchymal Stromal Cells (MSCs): Tissue Regeneration and Clinical Application

Advanced Science, EarlyView.
Mesenchymal stromal cells (MSCs) show promise for treating immune‐related disorders through immunomodulation and tissue regeneration. This review gives a brief overview of current clinical approval of MSC therapies. It also discussed how bioengineering, including genetic modification, biomaterial delivery, extracellular vesicles, and iPSC‐derived MSCs,
Sichen Yang, Kejia Li, Ning Wang, Zhen Li, Zhiyong Zhang, Rocky S. Tuan, Yangzi Jiang   +6 more
wiley   +1 more source

A Novel Ultrasonic Fatigue Test and Application in Bending Fatigue of TC4 Titanium Alloy. [PDF]

Materials (Basel), 2022
Tang S, Wang X, Huang B, Yang D, Li L, He C, Xu B, Liu Y, Wang C, Wang Q.   +9 more
europepmc   +1 more source

Fatigue Tests of Metals at Ultrasonic Frequency

Bulletin of JSME, 1958
A testing equipment and measurements are reported of the fatigue of metals under supersonic frequency. This equipment has an advantage over conventional fatigue machines that stress alternations up to 108 reversals can be made within an hour or so. At the resonant condition, metal samples are subjected to alternating stresses above the fatigue limit by
AWATANI, Jobu, MIYAMOTO, Hiroshi
openaire   +2 more sources

Oral Motion‐Powered Smart Dental Implant Abutment for In Situ Antibacterial and Cell Adhesion Through Piezoelectric Effect

Advanced Science, EarlyView.
We proposed a method based on the piezoelectric effect and fabricated an implant abutment on the basis of piezoelectric ceramic. Under physiological occlusal pressure, the oral motion‐powered smart dental implant abutments interacted with water and oxygen, promoting the formation of reactive oxygen species and achieving a synergistic and highly ...
Xiyu Shi, Xiaoyu Han, Yanhui Lu, Yuan Chai, Baiyan Xiao, Shuo Liu, Boon Chin Heng, Tingting Wu, Tingjun Li, Qiaomei Ren, Ting Song, Le Chen, Dong Han, Yaru Guo, Xuliang Deng, Xuehui Zhang   +15 more
wiley   +1 more source