Results 71 to 80 of about 34,534 (295)

Enhanced Strength and Corrosion Resistance of Ti‐13Nb‐12Ta‐10Zr‐4Sn Alloy by Aging Treatment

Advanced Engineering Materials, EarlyView.
This work systematically investigates the effect of aging treatment on mechanical properties and corrosion behavior of vacuum arc‐melted Ti‐13Nb‐12Ta‐10Zr‐4Sn alloy. Owing to the increased α″ martensite, strength and corrosion resistance were significantly enhanced by aging treatment.
Yuhua Li, Rong Zhao, Qian Zhang, Haojie Wang, Yujing Liu, Lai‐Chang Zhang   +5 more
wiley   +1 more source

Research on Stick-slip Vibration Level Estimation of Drillstring Based on SVM

Shiyou jixie, 2019
To evaluate the severity of stick-slip vibration of drill string, a risk assessment method based on factor analysis (FA) and support vector machine (SVM) is proposed.
Chen Chong, Zhang Shimin, Peng He, Cui Can, Liu Yang   +4 more
doaj  

Bubble dynamics atop an oscillating substrate: Interplay of compressibility and contact angle hysteresis [PDF]

, 2011
We consider a sessile hemispherical bubble sitting on the transversally oscillating bottom of a deep liquid layer and focus on the interplay of the compressibility of the bubble and the contact angle hysteresis.
Fayzrakhmanova, Irina S., Shklyaev, Sergey, Straube, Arthur V.   +2 more
core  

Bioinspired Shape‐Memory Hook Fasteners With Programmable Interlocking and Silent Release

Advanced Engineering Materials, EarlyView.
Bioinspired hook fasteners made from epoxy shape‐memory polymers are shown to switch between strong, secure attachment and gentle, silent release when heated. By combining programmable geometry and material response, these adaptive fasteners outperform commercial systems in strength and noise control, enabling new solutions for robotics, medical ...
Maria I. Vallejo Ciro, Manuel J. Carvajal Loaiza, Rahaf Homssi, Vanessa Restrepo   +3 more
wiley   +1 more source

A Literature Review of Approaches for Stick-Slip Vibration Suppression in Oilwell Drillstring

Advances in Mechanical Engineering, 2014
Stick-slip vibration presents one of the main problems in the quality of drilling performance limiting tool life and productivity. This type of vibration can be suppressed by means of many approaches, such as varying parameters and use of control tools ...
Xiaohua Zhu, Liping Tang, Qiming Yang
doaj   +1 more source

Direct Metal Deposition of Graphene–Ti28Nb35.4Zr Matrix Composites With Enhanced Mechanical, Corrosion, and Biocompatibility Properties for Bone Implants

Advanced Engineering Materials, EarlyView.
Graphene nanoplatelet (0.1 wt.%) reinforcement significantly enhances the performance of β Ti‐28Nb‐35.4Zr alloy. Grain refinement, reduced water contact angle, and improved surface characteristics promote osteoblast adhesion and complete surface coverage after 7 days.
Khurram Munir, Jixing Lin, Yuncang Li, Li Zhu, Paul F. A. Wright, Cuie Wen   +5 more
wiley   +1 more source

Time-Resolved Studies of Stick-Slip Friction in Sheared Granular Layers

, 1998
Sensitive and fast force measurements are performed on sheared granular layers undergoing stick-slip motion, along with simultaneous imaging. A full study has been done for spherical particles with a +-20% size distribution.
A. Bak, A. Demirel, A. Johansen, A. Kudrolli, B. E. Shaw, B. Miller, B. N. J. Persson, C. Daly, C. G. Sammis, C. H. Scholz, C. Marone, C.-h. Liu, D. Cule, D. G. Wang, D. M. Hanes, D. M. Tolstoi, D. R. Scott, E. Kumacheva, E. Rabinowicz, F. Heslot, F. Radjai, F.-J. Elmer, G. H. Ristow, H. Jaeger, H. M. Jaeger, J. A. C. Martins, J. M. Carlson, J. P. Gollub, J. R. Rice, K. Heki, L. M. Jones, M. G. Rozman, M. L. Gee, N. M. Beeler, O. Pouliquen, P. A. Thompson, P. A. Thompson, S. B. Savage, S. Nasuno, S. Nasuno, T. Baumberger, T. Baumberger, V. K. Horváth, Y. Zhang   +43 more
core   +2 more sources

Molecular Dynamics Studies of Shape Memory Polymers: From Bead–Spring Models to Atomistic Simulations

Advanced Engineering Materials, EarlyView.
Coarse‐grained (left) and atomistic (right) models of the shape memory polymer ESTANE ETE 75DT3 are shown schematically. The two representations bridge molecular detail and mesoscopic description. Both models capture shape memory behavior, linking segmental mobility and conformational relaxation of anisotropic chains to macroscopic recovery, and ...
Fathollah Varnik
wiley   +1 more source

Effect of Fabric Weave on Stick-Slip Properties of Woven Fabrics

AUTEX Research Journal, 2014
The aim of this study was to understand the stick-slip properties of dry polyester plain, ribs and satin woven fabric weaves. It was found that the amount of stick-slip force was related to the number of interlacement points in the fabric, whereas the ...
Bilisik Kadir
doaj   +1 more source

Study on the Influence Factors Upon the Propensity to Stick-Slip Phenomenon During Vehicle Start-Up Process

IEEE Access, 2020
The vibration caused by the friction characteristic of the clutch during the vehicle start-up process has an impact on driveline torsional oscillation.
Dongyang Wang, Minghui Hu, Baogang Li, Datong Qin, Dongye Sun   +4 more
doaj   +1 more source