Results 131 to 140 of about 3,253,810 (284)

Equiaxed microstructure design enables strength-ductility synergy in the eutectic high-entropy alloy

Journal of Materials Research and Technology
Eutectic high-entropy alloys (EHEAs) represent attractive candidate materials for overcoming the strength-ductility trade-off, which can be enhanced through the directional alignment of the lamellar structure along the loading direction.
Zequn Zhang, Yong Huang, Qi Xu, Simon Fellner, Anton Hohenwarter, Stefan Wurster, Kaikai Song, Christoph Gammer, Jürgen Eckert   +8 more
doaj   +1 more source

ChicGrasp: Imitation‐Learning‐Based Customized Dual‐Jaw Gripper Control for Manipulation of Delicate, Irregular Bio‐Products

Advanced Robotics Research, EarlyView.
Automated poultry processing lines still rely on humans to lift slippery, easily bruised carcasses onto a shackle conveyor. Deformability, anatomical variance, and hygiene rules make conventional suction and scripted motions unreliable. We present ChicGrasp, an end‐to‐end hardware‐software co‐designed imitation learning framework, to offer a ...
Amirreza Davar, Zhengtong Xu, Siavash Mahmoudi, Pouya Sohrabipour, Chaitanya Pallerla, Yu She, Wan Shou, Philip Glen Crandall, Dongyi Wang   +8 more
wiley   +1 more source

Modern approaches to the definition of the mechanics of solids through crystallographic structure and mechanical interactions

Journal of the Mechanical Behavior of Materials
This study quantified the relationships between crystallographic structure, defect organisation, and mechanical behaviour in commercially pure CP-Ti Grade 2 under three thermomechanical conditions: recrystallised annealed, 50 % cold-deformed, and cold ...
Mustafayeva Esmira, Ismailzade Matanat
doaj   +1 more source

Grandes déformations plastiques et GNBs (Geometrically Necessary Boundaries)

, 1998
Lors de grandes déformations plastiques d'un polycristal, les grains ont tendance à se subdiviser en cellules, regroupées en blocs et séparées par des parois de dislocations.
J.H. Driver, F. Basson
core   +1 more source

Liquid Crystalline Elastomers in Soft Robotics: Assessing Promise and Limitations

Advanced Robotics Research, EarlyView.
Liquid crystalline elastomers (LCEs) are programmable soft materials that undergo large, anisotropic deformation in response to external stimuli. Their molecular alignment encodes directional actuation in a monolithic structure, making them long‐standing candidates for soft robotic systems.
Justin M. Speregen, Timothy J. White
wiley   +1 more source

Finite element analysis of geometrically necessary dislocations in crystal plasticity

, 2013
We present a finite element method for the analysis of ductile crystals whose energy depends on the density of geometrically necessary dislocations (GNDs).
Hurtado, Daniel E., Ortiz, Michael
core  

Compliant Pneumatic Feet with Real‐Time Stiffness Adaptation for Humanoid Locomotion

Advanced Robotics Research, EarlyView.
A compliant pneumatic foot with real‐time variable stiffness enables humanoid robots to adapt to changing terrains. Using onboard vision and pressure control, the foot modulates stiffness within each gait cycle, reducing impact forces and improving balance. The design, cast in soft silicone with embedded air chambers and Kevlar wrapping, offers durable,
Irene Frizza, Hiroshi Kaminaga, Philippe Fraisse, Gentiane Venture   +3 more
wiley   +1 more source

Thermally stable strength-ductility synergy in Al-Mg matrix composites via interval oxidation

Materials Research Letters
A bimodal-grained Al-Mg matrix composite with thermally stable strength-ductility synergy is developed via an interval oxidation (IO) powder processing strategy.
Zhiqi Guo, Zhanqiu Tan, Guoping Zhao, Bo Cui, Kang Wang, Genlian Fan, Zhiqiang Li, Di Zhang   +7 more
doaj   +1 more source

Resolving geometrically necessary dislocations and application in copper. [PDF]

, 2013
The use of Electron Back-Scatter Diffraction (EBSD) as a tool for strain measurement is not a new application. The band contrast within a captured Kikuchi pattern has been shown to decrease in regions with high plastic strain.
David Kerr
core  

A Soft Robotic Fish With a Dielectric Elastomer Actuator Body and Negative Stiffness Spine

Advanced Robotics Research, EarlyView.
This work introduces a bio‐mimetic soft robotic fish driven by fiber‐reinforced dielectric elastomer actuators integrated as its body. By prestretching this active skin against a flexible spine, a negative stiffness system is created, enabling large‐amplitude bending.
Markus Koenigsdorff, Simon Holzer, Stefania Konstantinidi, Yoan Civet, Yves Perriard   +4 more
wiley   +1 more source