Results 81 to 90 of about 96,970 (315)

Characterization of fatigue crack initiation and propagation in Ti-6Al-4V with electrical potential drop technique [PDF]

Electrical potential methods have been used in the past primarily to monitor crack length in long crack specimens subjected to fatigue loading. An attempt was made to develop test procedures for monitoring the fatigue crack initiation and the growth of ...
Kalluri, Sreeramesh, Telesman, Jack
core   +1 more source

A fatigue crack initiation model incorporating discrete dislocation plasticity and surface roughness [PDF]

, 2007
Although a thorough understanding of fatigue crack initiation is lacking, experiments have shown that the evolution of distinct dislocation distributions and surface roughness are key ingredients.
Brinckmann, Steffen, Van der Giessen, Erik   +1 more
core   +4 more sources

Regiorandom Polythiophenes for Fully Stretchable Electrochemical Transistors and Logic Circuits

Advanced Functional Materials, EarlyView.
Regiorandom (RRa) polythiophenes, once regarded as unsuitable for electronics, exhibit exceptional switching performance via volumetric electrochemical doping. Optimized RRa‐based organic electrochemical transistors (OECTs) achieve a high on/off ratio (≈104), stable operation under 200% strain, and enable fully stretchable logic gates, demonstrating ...
Dong Hyun Park, Min Su Kim, Kyu Yeon Kim, Jae Hyun Han, Moon Sung Kang, Kyung Gook Cho, Keun Hyung Lee   +6 more
wiley   +1 more source

Analysis and prediction of fatigue crack growth performance for fiber reinforced aluminum-lithium alloy laminates under single-peak compressive overload

Journal of Aeronautical Materials
As a new type of aviation material，fiber/aluminum-lithium（Al-Li）laminates are significantly threatened by fatigue cracks. In other words，fatigue cracks are the “fatal killers”，which leads to their failure.
HUANG Xiao, HUANG Yi, MENG Weiying, ZHANG Xiaochen, WANG Jiaying   +4 more
doaj   +1 more source

Prediction of fatigue crack-growth patterns and lives in three-dimensional cracked bodies [PDF]

Fatigue crack growth patterns and lives for surface cracks, surface cracks at holes, and corner cracks at holes in three dimensional bodies were predicted using linear-elastic fracture mechanics concepts that were modified to account for crack-closure ...
Newman, J. C., Jr., Raju, I. S.
core   +1 more source

Additive Manufacturing of NiTi Shape Memory Alloys for Elastocaloric Applications: A Review

Advanced Functional Materials, EarlyView.
Additive manufacturing enables complex NiTi architectures that overcome key limitations in elastocaloric refrigeration, including poor heat transfer and high mechanical work input. This review surveys recent advances in LPBF‐ and DED‐fabricated NiTi shape memory alloys for elastocaloric applications, highlighting process–structure–performance ...
Ignatius Andre Setiawan, Mohammad Mehrali, Jaka Tušek, Shiva Mohajerani, Xiebin Wang, Dermot Brabazon, Mohammad Elahinia, Mehrshad Mehrpouya   +7 more
wiley   +1 more source

Fatigue properties of a nanocrystalline titanium based bulk metallic glassy alloy

Journal of Science: Advanced Materials and Devices, 2018
To obtain a better understanding of the fatigue properties and crack growth characteristics of a nanocrystalline titanium based bulk metal glasses (Ti-BMG) made by vacuumed casting process, the fatigue failure mechanisms of Ti-BMG have been investigated ...
Mitsuhiro Okayasu, Tomoki Shigeoka
doaj   +1 more source

Tough Injectable Hydrogels Enabled by Integrating Rigid Homogeneous Framework With Flexible Chains

Advanced Functional Materials, EarlyView.
Tough injectable hydrogels are constructed by integrating a rigid, homogeneous hyaluronic acid framework with flexible long‐chain connectors. This framework–flexible structure simultaneously enhances network uniformity and promotes effective energy dissipation by enlarging plastic deformation zones under compression.
Rijian Song, Runqi Zhu, Cameron Milne, Melissa Johnson, Chunyu Zhao, Qiang Geng, Yinghao Li, Jing Lyu, Qiang Li, Sigen A, Wenxin Wang   +10 more
wiley   +1 more source

Fatigue Crack Growth Life Prediction of 6061 Al-Alloy under Load Ratio Effect by Using ANFIS [PDF]

, 2016
Fatigue crack growth under constant amplitude loading for a particular material strongly depends on load ratio (R). The prediction of fatigue crack growth life under such situation through deterministic approach is a tedious task.
Mohanty, J. R. (J)
core   +1 more source

Cyclic Olefin Copolymers as Versatile Materials for Advanced Engineering Applications

Advanced Functional Materials, EarlyView.
Cyclic olefin copolymers (COCs) are presented as highly versatile materials combining tunable synthesis, excellent optical properties, and mechanical robustness. Their potential spans microfluidics, bioengineering, and advanced electronics, while emerging self‐healing and sustainable solutions highlight future opportunities.
Giulia Fredi, Norma Mallegni, Andrea Dorigato, Mario Milazzo   +3 more
wiley   +1 more source