Results 61 to 70 of about 1,371 (244)

High‐Temperature Nanoindentation of Metals: Assessing Thermal Drift, Frame Compliance, and Chemical Composition Effects on the Reported Mechanical Properties

Advanced Engineering Materials, EarlyView.
Do not let thermal drift and instrument artifacts deceive high‐temperature nanoindentation results. We compare classical Oliver–Pharr and automatic image recognition analyses across steels and a Ni alloy to quantify these effects. Accounting for artifacts reveals systematic softening with temperature, while Cr and Ni additions boost resistance ...
Velislava Yonkova, Steffen Brinckmann, Ruth Schwaiger   +2 more
wiley   +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

Mechanically Bi-Stable In-Plane Switch with Dual-Stiffness Actuators

, 2007
This paper presents an optimized mechanical multi-spring concept for electrostatic actuators, demonstrated in a lateral curved-electrode configuration for a mechanically interlocking bi-stable switch. The concept features a dual-stiffness mechanism where
Roxhed, Niclas,, N. Roxhed, Stemme, Göran,, G. Stemme, Sterner, Mikael,, M. Sterner, Oberhammer, Joachim,, J. Oberhammer   +7 more
core   +1 more source

Dynamic Force Transducer Calibration Based on Electrostatic Force

IEEE Access, 2019
Measurements of micro/nano dynamic force transducers (DFTs) in the micro-Newton range are of significant importance in many fields. In this paper, the electrostatic force in the micro-Newton range was used to generate dynamic force to calibrate the DFT ...
Yelong Zheng, Meirong Zhao, Jile Jiang, Le Song   +3 more
doaj   +1 more source

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

Persistence length of weakly charged polyelectrolytes with variable intrinsic stiffness

, 2002
We present simulations of a basic model of weakly charged polyelectrolyte chains of variable intrinsic stiffness within the Debye-Hückel approximation.
K. Kremer, U. Micka
core   +1 more source

Low Cycle Repetitive Loading of Ti‐6Al‐4V‐Epoxy Composite Lattice Structures for Enhanced Energy Dissipation and Damage Tolerance

Advanced Engineering Materials, EarlyView.
Composite Ti–6Al–4V–epoxy lattice structures are additively manufactured and epoxy infiltrated for cyclic loading. At low lattice volume fractions, hybridization produces synergistic gains in stiffness and energy dissipation. At higher volume fractions, synergy diminishes, although composites still exceed metallic lattices in specific energy ...
Joey Tallon, Jordan Noronha, Justin Dirrenberger, Andrey Molotnikov   +3 more
wiley   +1 more source

Electrostatic interaction between stereocilia:II. Influence on the mechanical properties of the hair bundle

, 2000
This paper is based on our model [Dolgobrodov et al., 2000. Hear. Res., submitted for publication] in which we examine the significance of the polyanionic surface layers of stereocilia for electrostatic interaction between them.
Lukashkin, Andrei N.; id_orcid, Sergei G. Dolgobrodov, Ian J. Russell, Russell, Ian J., Dolgobrodov, Sergei G., Andrei N. Lukashkin   +5 more
core   +1 more source

Profile Stiffness and Global Confinement [PDF]

, 2004
This paper analyses the properties of a critical gradient transport model based on a few assumptions: electrostatic gyroBohm scaling law, existence of an instability threshold and finite background transport below the threshold.
Imbeaux, F., Wolf, R. C., Garbet, X., Ryter, F., Mantica, P., Parail, V., Sozzi, C.   +6 more
core   +1 more source

Modeling a Pull-In Instability in Micro-Machined Hybrid Contactless Suspension

Actuators, 2018
A micro-machined hybrid contactless suspension, in which a conductive proof mass is inductively levitated within an electrostatic field, is studied.
Kirill V. Poletkin, Jan G. Korvink
doaj   +1 more source