Results 111 to 120 of about 57,383 (312)

Smart Face Masks as Wearable Respiratory Sensors: A Review of Sensor Technologies, Materials, and Future Directions

Advanced Healthcare Materials, EarlyView.
This review highlights recent advances in smart face masks that actively monitor breathing. By integrating humidity, gas, temperature, pressure, strain, and triboelectric sensors, these masks track key respiratory parameters in real time. The article summarizes sensor mechanisms, compares performance across studies, and discusses challenges and future ...
Negin Faramarzi, Naseeh Backer Kannanthodi, Alice Nicole Casling, Babar Ali, Samira Lakouraj Mansouri, Alessandro Giuseppe D'aloia, Hossein Cheraghi Bidsorkhi, Maria Sabrina Sarto   +7 more
wiley   +1 more source

Interactions between geometrical defects and microstructure during high cycle fatigue of polycrystalline aluminium with different grain sizes

MATEC Web of Conferences, 2018
In this work, the influence of the geometrical defect size on the high cycle fatigue behavior of polycrystalline aluminium with different grain sizes is investigated, to better understand the role of internal length scales. Two sizes of grains and defect
Bracquart Benoît, Mareau Charles, Saintier Nicolas, Morel Franck   +3 more
doaj   +1 more source

Creep-Fatigue Crack Initiation Simulation of a Modified 12% Cr Steel Based on Grain Boundary Cavitation and Plastic Slip Accumulation. [PDF]

Materials (Basel), 2021
Jin X, Wang RZ, Shu Y, Fei JW, Wen JF, Tu ST.   +5 more
europepmc   +1 more source

Low cycle fatigue of notched specimens by consideration of crack initiation and propagation [PDF]

Low cycle fatigue of notched steel and aluminum alloy specimens by consideration of crack initiation and ...
Hirschberg, M. H., Manson, S. S.
core   +1 more source

Crack emanation from defects modelled by extremely small drilled holes in two conditions [PDF]

, 2006
Fatigue is the primary reason for the failure of structural components. Resistivity of a coarse grain heat affected zone against fatigue crack initiation in presence of micro-defects is discussed in the present article.
Gliha, V., Hlado, V., Hutsaylyuk, V., Maruschak, P., Vuherer, T., Yasniy, P.   +5 more
core  

Epidermal Patch Technologies for Integrated Healthcare and Infection Management

Advanced Healthcare Materials, EarlyView.
Epidermal patches have evolved from simple wound coverings into multifunctional, skin‐conformable platforms integrating drug delivery, biosensing, and therapeutic functionalities. This review highlights their material innovations, fabrication strategies, and intelligent designs, including hydrogels, microneedles, and flexible electronics, while ...
Yuqi Wang, Atakan Tevlek, Pawel L. Urban, Boaz Mizrahi, Onome Ejeromedoghene, Roshan Deen, Yuanjing Lin, Jagan Mohan Dodda   +7 more
wiley   +1 more source

Fatigue Limit Doubling in High‐Strength Martensitic Steel through Crack Embryo Engineering–Cyclic‐Training‐Driven Self‐Optimization

Advanced Science
Achieving superior fracture resistance under cyclic loading–specifically, a high‐fatigue limit–is crucial for ensuring structural safety and supporting a sustainable society.
Kazuho Okada, Kaneaki Tsuzaki, Eri Nakagawa, Akinobu Shibata   +3 more
doaj   +1 more source

ANALYSIS ON FATIGUE CRACK INITIATION LIFE OF COUPLER KNUCKLE OF RAILWAY HEAVY-HAUL WAGON

Jixie qiangdu, 2022
In order to more accurately grasp the health status of key parts of heavy-haul wagon, the crack initiation life of the structure under existing service conditions is one of the important links of the research.
TIAN XiaoChen, ZHU Tao, WANG Chao, YIN MinXuan, XU JingTao, XIAO ShouNe, YANG GuangWu, YANG Bing   +7 more
doaj  

Low-Cycle Fatigue Crack Initiation Simulation and Life Prediction of Powder Superalloy Considering Inclusion-Matrix Interface Debonding. [PDF]

Materials (Basel), 2021
Zhang S, Xu Y, Fu H, Wen Y, Wang Y, Liu X.   +5 more
europepmc   +1 more source

Different aspects of low-cycle fatigue [PDF]

The experimental and theoretical knowledge in this field is presented. The different relations which correlate the number of cyles to rupture with strain or strain-energy are given.
Bathias, C.
core   +1 more source