Results 121 to 130 of about 8,538 (283)

Study of HCP→FCC phase transformation mechanism under different hot compression rates of AZ31 magnesium alloy

Journal of Magnesium and Alloys
At present, there are few studies on the phase transition during the thermocompression plastic deformation of magnesium alloy. In this study, the evolution model of thermal compression plastic of AZ31 magnesium alloy was constructed by molecular dynamics,
Chun Xue, Tingzhuang Han, Bo Gao, Qianhua Yang, Zhibing Chu, Leifeng Tuo   +5 more
doaj   +1 more source

On the Friction and Wear Mechanisms of Electrified Steel Contacts in CO2: Unveiling the Role of Carbon‐Rich Tribofilms Under Dry Sliding Conditions

Advanced Materials Interfaces, EarlyView.
This study investigates friction and wear of AISI 52100 steel under dry sliding in CO2, air, and N2 atmospheres, with and without contact electrification. CO2 forms a stable carbon‐rich tribofilm that reduces friction by ∼30% and wear by ∼85%. High‐resolution TEM, EELS, and molecular dynamics reveal pressure‐dependent lubrication mechanisms, showing ...
Julio A. Cao‐Romero‐Gallegos, Seungjoo Lee, Cagatay Yelkarasi, Leonardo I. Farfan‐Cabrera, Ryuichi Okamoto, Hitoshi Washizu, Ali Erdemir   +6 more
wiley   +1 more source

Study on Shifting Performance of Tractor Multi-Clutch under Different Engagement Rules

Agriculture
When shifting gears around a tractor’s power shift transmission, it is necessary to coordinate the control of multiple clutches and formulate a reasonable clutch engagement law to ensure the reliability and power of the power system.
Jingyun Zhang, Xiaohui Liu, Haijiang Wei, Mengnan Liu, Wenlong Huang, Xianghai Yan   +5 more
doaj   +1 more source

Inverse identification of a bearing-stress-interface-slip relationship in mechanically fastened FRP laminates

, 2012
The use of mechanically-fastened fibre-reinforced polymer (MF-FRP) strips has been recently proposed as a possible alternative solution to the most common externally-bonded (EB) sheets and laminates.
REALFONZO, ROBERTO, NAPOLI, ANNALISA, MARTINELLI, Enzo, NUNZIATA, BRUNO   +3 more
core   +1 more source

Recent Advances of Slip Sensors for Smart Robotics

Advanced Materials Technologies, EarlyView.
This review summarizes recent progress in robotic slip sensors across mechanical, electrical, thermal, optical, magnetic, and acoustic mechanisms, offering a comprehensive reference for the selection of slip sensors in robotic applications. In addition, current challenges and emerging trends are identified to advance the development of robust, adaptive,
Xingyu Zhang, Liao Wu, Shuai He, Zhao Sha, Yuwan Huang, Shuying Wu, Dewei Chu, Chun H. Wang, Shuhua Peng   +8 more
wiley   +1 more source

Debonding mechanisms of fibre reinforced polymer strengthened steel members.

, 2011
Applying Fibre Reinforce Polymer (FRP) to steel structures has been proved to be an effective method of strengthening. Experimentally, ageing steel structures such as bridge decks and composite beams which have been strengthened with FRP have shown ...
Akbar, Ibrisam
core  

Non-linear finite element analysis of flexible pipes for deep-water applications [PDF]

, 2013
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University LondonFlexible pipes are essential components in the subsea oil and gas industry, where they are used to convey fluids under conditions of extreme ...
Edmans, Ben
core  

Liquid Metal‐Based Stretchable Strain Sensor for Fruit Growth Monitoring

Advanced Materials Technologies, EarlyView.
Schematic overview of the fruit growth sensor development workflow, including sensor fabrication by injection molding, electromechanical and environmental characterization, mechanical stability testing, electronic readout integration, and outdoor field validation for monitoring of fruit growth under practical orchard conditions.
Asad Ullah, Lennert Purnal, Maximilian Krack, Sander Vijgen, Thijs Vandenryt, Dieter Reenaers, Ronald Thoelen, Wim Deferme   +7 more
wiley   +1 more source

A Pressure Microsensor Made of Parylene‐C for Use as Medical Implant

Advanced Materials Technologies, EarlyView.
A monolithic parylene‐C pressure sensor with gold strain gauges provides 6.2 μV$\mu{\rm V}$·mmHg$\cdot{\rm mmHg}$−1$^{-1}$ sensitivity. The morphology of a sputtered thin film strain sensor is granular/columnar, which results in a high gauge factor of 7.5. Thermal bonding and parylene‐C coating create a hermetic cavity.
Ann‐Kathrin Klein, Victor Krajka, Andreas Dietzel   +2 more
wiley   +1 more source

Hierarchical Multi‐Material Architectures With Gradient Design for Dynamic‐Range Flexible Tactile Sensing

Advanced Materials Technologies, EarlyView.
Hierarchical multi‐material TPMS lattices are engineered as flexible tactile sensors by combining soft and stiff elastomeric layers with a conformal conductive coating. The bilayer architecture delivers sensitivity at low pressures while maintaining a broad detectable range under large loads, enabling reliable pressure and vibration monitoring for ...
Reza Noroozi, Domenic Quiquero, Yan Yan Shery Huang, HaoTian Harvey Shi   +3 more
wiley   +1 more source