Results 21 to 30 of about 16,091 (233)

Phase Field Failure Modeling: Brittle‐Ductile Dual‐Phase Microstructures under Compressive Loading

Advanced Engineering Materials, EarlyView.
The approach by Amor and the approach by Miehe and Zhang for asymmetric damage behavior in the phase field method for fracture are compared regarding their fitness for microcrack‐based failure modeling. The comparison is performed for the case of a dual‐phase microstructure with a brittle and a ductile constituent.
Jakob Huber, Jan Torgersen, Ewald Werner
wiley   +1 more source

Microstructure‐Controlled Crack Propagation and Fracture Resistance in MoSiBTiC Alloy Revealed by Multiscale Extended Finite Element Method Modeling

Advanced Engineering Materials, EarlyView.
A two‐dimensional multiscale finite element analysis framework was established for the first‐generation MoSiBTiC alloy, and the mechanical and fracture‐related parameters of the constituent phases were calibrated through experiments and simulations. The framework provides a basis for analyzing crack propagation behavior in its complex microstructure ...
Junfeng Du, Takahiro Kaneko, Xinyu Yan, Takahito Ohmura, Kyosuke Yoshimi   +4 more
wiley   +1 more source

Multiobjective Codesign Optimization of a Planar Pneumatic Artificial Muscle‐Based Snake‐Like Robot for Enhanced Agility and Energy Efficiency

Advanced Robotics Research, EarlyView.
A codesign multiobjective optimization framework was developed to enhance the morphology and controller of a snake‐like robot driven by artificial muscles. It improved planar locomotion, agility, and power efficiency. The approach optimized link geometry and controller gains, revealing that shorter muscles near joints and longer linkages maximize ...
Ayla Valles, Mahdi Haghshenas‐Jaryani
wiley   +1 more source

Formation Control of Multi‐Agent System with Local Interaction and Artificial Potential Field

Advanced Robotics Research, EarlyView.
This article proposes a local interaction‐based formation control method for Multi‐Agent system, integrating consensus and leader‐follower strategies with a stress response mechanism—artificial potential field to reduce communication overhead and enable obstacle avoidance. Experimental results on triangular, square, and hexagonal formations confirm its
Luoyin Zhao, Zheping Yan, Yuqing Wang, Raye Chen‐Hua Yeow   +3 more
wiley   +1 more source

Approach to the construction of the spaces $ S{D^p}[\mathbb{R}^{\infty}]$ for $1 \leq p \leq \infty$

, 2022
The objective of this paper is to construct an extension of the  class of Jones distribution Banach spaces $S{D^p}[\mathbb{R}^{n}], 1\leq p\leq \infty,$ which appeared in the book by Gill and Zachary \cite{TG} to  $S{D^p}[\mathbb{R}^{\infty}]$  for $1 ...
Kalita, Hemanta
core  

Dual‐Functional Ingestible Passive Capsules for High‐Throughput Intestinal Sampling with Sealed Containment and Targeted Drug Delivery

Advanced Robotics Research, EarlyView.
To address challenges in high‐throughput intestinal sampling with sealed containment and target drug delivery, we developed a dual‐functional ingestible passive capsule with a dual‐triggered control system based on pH‐response and mechanical actuation.
Libing Huang, Houyu Ling, Xizong Chen, Yufei Duan, Yu Liu, Shuntian Cai, Yandan Ren, Wenlong Li, Lei Ren, Miao Wang   +9 more
wiley   +1 more source

The VANDELS survey: the ionizing properties of star-forming galaxies at $3 \leq z \leq 5$ using deep rest-frame ultraviolet spectroscopy

, 2023
International audienceTo better understand the ionizing properties of galaxies in the EoR, we investigate deep, rest-frame ultraviolet (UV) spectra of $\simeq 500$ star-forming galaxies at $3 \leq z \leq 5$ selected from the public ESO-VANDELS ...
Hathi, N P, Pompei, E, F Cullen, P Hibon, Guaita, L, Pentericci, L, Fynbo, J P U, Saxena, A., Carnall, Adam, L Guaita, Hibon, P, Amorín, R, F Fontanot, Carnall, A C, R Amorín, Hibon, P., A Calabrò, Fynbo, J.P.U., Amorín, R., Schaerer, D, Calabrò, A., Hathi, N.P., A C Carnall, A Saxena, G Zamorani, Schaerer, Daniel Olivier, Hathi, Nimish P., E Pompei, N P Hathi, Saldana-Lopez, A., Zamorani, G., Fontanot, F., Hathi, N. P., Cullen, F, Guaita, L., J Chisholm, D J McLeod, Saxena, A, Schaerer, D., Chisholm, J., Chisholm, J, Ji, Z., J P U Fynbo, Pentericci, L., D Schaerer, Saldana Lopez, Alberto, Pompei, E., Cullen, F., Z Ji, Calabrò, A, Amorín, Ricardo O., Cullen, Fergus, McLeod, D.J., Hibon, Pascale, Carnall, A. C., A Saldana-Lopez, McLeod, P. Hibon Z. Ji D. J., Saldana-lopez, A, Fynbo, J. P. U., Ji, Z, Fontanot, F, Mcleod, P. Hibon Z. Ji D.J., Zamorani, G, Fontanot, Fabio, Mcleod, D J, Chisholm, John Peter, Carnall, A.C., L Pentericci   +67 more
core   +1 more source

Identifying Physical Interactions in Contact‐Based Robot Manipulation for Learning from Demonstration

Advanced Robotics Research, EarlyView.
Robots can learn manipulation tasks from human demonstrations. This work proposes a versatile method to identify the physical interactions that occur in a demonstration, such as sequences of different contacts and interactions with mechanical constraints.
Alex Harm Gert‐Jan Overbeek, Herman van der Kooij, Douwe Dresscher, Mark Vlutters   +3 more
wiley   +1 more source

Echinoderm‐Inspired Autonomy for Soft‐Legged Robots

Advanced Robotics Research, EarlyView.
Inspired by echinoderms, a modular soft robot achieves autonomous phototaxis without a central controller or explicit communication. Each limb independently adapts its actuation timing through local sensing and short‐term memory. Coordination emerges purely from physical interactions, demonstrating resilience to changes in morphology, environment, and ...
Harmannus A. H. Schomaker, Jelle de Vries, Johannes T. B. overvelde   +2 more
wiley   +1 more source

Universal properties of superconformal OPEs for 1/2 BPS operators in $3\leq D \leq 6$

, 2001
We give a general analysis of OPEs of 1/2 BPS superfield operators for the $D=3,4,5,6$ superconformal algebras OSp(8/4,R), PSU(2,2), F${}_4$ and OSp($8^*/4$) which underlie maximal AdS supergravity in $4\leq D+1\leq 7$.
Ferrara, Sergio, Sokatchev, Emery
core   +1 more source