Results 41 to 50 of about 2,683,565 (214)

Intelligent Micro/Nanorobots for Targeted Interventional Therapy: From Bench to Clinic

Advanced Robotics Research, EarlyView.
Zirui Zhang et al. reviewed the application and challenges of mobile nanomachines in interventional therapy. By converting exogenous energy, including chemical, magnetic, optical, and ultrasonic sources, into mechanical forces, micro/nanorobots (MNRs) enable precise actuation at unprecedented scales. Evolving far beyond traditional drug delivery, these
Zirui Zhang, Yu Dong, Yongsheng Du, Rui Gao, Lin Zhang, Fei Tong   +5 more
wiley   +1 more source

Evaluation of ductile failure models in Sheet Metal Forming

MATEC Web of Conferences, 2016
Traditionally, combination of equivalent plastic strain and stress triaxiality parameters are taken into account when performing characterization of material ductility.
Amaral Rui, Teixeira Pedro, Azinpour Erfan, Santos Abel D., Cesar de Sa J.   +4 more
doaj   +1 more source

EndoTac: An Endoscopic Camera‐Based Tactile Sensor with High Sensitivity for Minimally Invasive Surgery

Advanced Science, EarlyView.
EndoTac presents a trocar‐compatible endoscopic vision‐based tactile sensor that uses a convex mirror to enlarge side‐facing tactile coverage during minimally invasive vessel palpation. Distorted tactile images are unwarped and processed by a learning model to estimate vascular deformation, enabling sensitive, spatially distributed tactile perception ...
Yupeng Wang, Nicolas Raison, Xuyang Zhang, Aijia Yang, Lukas Lindenroth, Shan Luo   +5 more
wiley   +1 more source

Size effect on the shear damage under low stress triaxiality in micro-scaled plastic deformation of metallic materials

Materials & Design, 2020
Micro-forming is one of the major micro-manufacturing methods with promising application potentials, in which the damage response and fracture behavior need to be insightfully addressed.
Jilai Wang, Chuanzheng Li, Yi Wan, Chengpeng Zhang, Jiaqi Ran, M.W. Fu   +5 more
doaj   +1 more source

A stress-based shear fracture criterion considering the effect of stress triaxiality and Lode parameter

, 2022
A stress-based shear fracture criterion considering the effect of stress triaxiality and Lode ...
Y Lou (13361421), P Wu (4402270), R Chai (9940079), J Wang (20900), X Li (4169308), C Zhang (2567170), Jeong Yoon (13075671)   +6 more
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Fracture mechanism and failure strain of TA31 titanium alloy for deep-sea pressure hulls based on continuum damage mechanics

Frontiers in Materials, 2023
Titanium alloys has high fatigue resistance, high corrosion resistance, high temperature resistance, and other excellent properties, and have been widely used in deep-sea equipment and aviation industries.
Bowen Zhang, Zhengquan Wan
doaj   +1 more source

A Two‐Stage Characterization Pipeline and Open‐Source Framework for Reproducible Tactile Sensing

Advanced Intelligent Systems, EarlyView.
The same soft tactile sensor returns different numbers when embodied in different robots. This is an Embodiment Gap that no shared framework currently captures transparently. A two‐stage characterization pipeline, paired with a FAIR open‐source digital datasheet, decouples intrinsic sensor behavior from embodiment effects and condenses cross‐laboratory
Matteo Lo Preti, Weng Buxiu, Petr Trunin, Muhammad Sunny Nazeer, Lucia Beccai, Perla Maiolino, Cecilia Laschi   +6 more
wiley   +1 more source

The Study and Application on Ductile Fracture Criterion of Dual Phase Steels During Forming

Metals
High-strength steel exhibits complex fracture behavior due to the interplay between shear and necking mechanisms during stamping and forming processes, posing challenges to achieving the dimensional accuracy and reliability demanded for automotive body ...
Lianxing Zhao, Xiaotao Fei, Chaifeng Sun, Peng Liu, Di Li   +4 more
doaj   +1 more source

Ductile Fracture Analysis of High-strength Steel Bars Using Micromechanical GTN Model [PDF]

Journal of Stress Analysis, 2018
Recent studies on the mechanics of materials have shown that the ductile fracture is significantly affected by the stress invariants among progressive plastic deformation.
H. Bahrami Ghalehjoogh, S.H. Hoseini
doaj   +1 more source

Determination of parameters of stress triaxiality for aluminium wrought alloy [PDF]

, 2017
Postopki preoblikovanja predstavljajo pomemben segment industrijske proizvodnje. Največkrat preoblikovalni procesi potekajo pri pogojih večosnega napetostnega stanja.
Gerdin, Peter
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