Results 101 to 110 of about 110,383 (323)

On the selection of Johnson-Cook constitutive model parameters for Ti-6Al-4V using three types of numerical models of orthogonal cutting [PDF]

, 2015
Johnson-Cook constitutive model is still the most used model in metal cutting simulation, although several drawbacks reported in the literature. A high number of Johnson-Cook model parameters can be found in the literature for the same work material. One
ZHANG, Yancheng, OUTEIRO, José, Outeiro, J.C., MARTINS DO OUTEIRO, Jose Carlos, MABROUKI, Tarek   +4 more
core   +1 more source

From the Discovery of the Giant Magnetocaloric Effect to the Development of High‐Power‐Density Systems

Advanced Materials Technologies, EarlyView.
The article overviews past and current efforts on caloric materials and systems, highlighting the contributions of Ames National Laboratory to the field. Solid‐state caloric heat pumping is an innovative method that can be implemented in a wide range of cooling and heating applications.
Agata Czernuszewicz, Yaroslav Mudryk, Jun Cui, Lucas Griffith, Duane D. Johnson, Julie Slaughter   +5 more
wiley   +1 more source

Strain rate behaviour of multi-phase and complex-phase steels for automotive applications

EPJ Web of Conferences, 2012
A combined study on the mechanical behaviour of multi-phase 800 high yield strength steel (MP800HY) and complex-phase 800 steel (CP800) is carried out under tensile loads in the strain rate range from 0.001s−1 to 750s−1. Quasi-static (0.001s−1) tests are
Singha M.K., Singh N.K., Cadoni E., Gupta N.K.   +3 more
doaj   +1 more source

Use of the quasi-static Johnson-Cook model in the failure assessment of tensile specimens with metallurgical constraints

European Journal of Mechanics - A/Solids, 2020
Direct quenching has recently been used to develop cost-effective novel high and ultra-high strength steels. In weldments made of these steels, a distinct soft zone, which can lower the ultimate strength and deformation capacity of the welded joint, can ...
Riku Neuvonen, T. Skriko, T. Björk
semanticscholar   +1 more source

Chip‐Integrated Metasurface‐GaAsSb Nanowire Array Photodetectors for Single‐Pixel Polarimetric Imaging

Advanced Optical Materials, EarlyView.
A 2×2 multiplexed GaAsSb nanowire photodetector array integrated with L‐shaped metasurfaces is developed for miniaturized infrared polarimetry. Leveraging non‐radiating anapole states that facilitate near‐field enhancement, the device demonstrates strong polarization selectivity at 835 nm.
Longsibo Huang, Ziyuan Li, Yitao Yang, Yang Yu, Lei Xu, Li Li, Songqin Zhang, Han Wang, Wenwu Pan, Chaohao Chen, Weiqi Jin, Wen Lei, Lorenzo Faraone, Chennupati Jagadish, Lan Fu   +14 more
wiley   +1 more source

Inflammation Unchecked: Concurrent Kawasaki Disease and Stevens‐Johnson Syndrome in an 18‐Month‐Old Child

Arthritis Care &Research, EarlyView.
Catherine Deffendall, Jodi Backalar, Elizabeth Acevedo Zapata, Adriana Della Porta, Lorin Bibb, Tyler Reese, Charlotte M. Brown   +6 more
wiley   +1 more source

Sex‐Specific Regulation of Glycemic Homeostasis by Theabrownin from Pu‐erh Tea

Advanced Science, EarlyView.
Pu‐erh tea's key component, theabrownin (TB), lowers blood glucose in a sex‐specific manner. In females, estrogen boosts intestinal MUC2 production, which dramatically enhances TB's ability to inhibit the carbohydrate‐digesting enzyme α‐glucosidase.
Yang Li, Junliang Kuang, Dan Zheng, Jieyi Wang, Kun Ge, Chun Qu, Xiaojiao Zheng, Zhenxing Ren, Fengjie Huang, Mingliang Zhao, Yimin Sun, Huiheng Zhang, Keke Ding, Xixi Xia, Yajun Tang, Lu Liu, Jian Zhou, Fei Gao, Xiaohui Ma, Yongquan Xu, Guoxiang Xie, Aihua Zhao, Wei Jia   +22 more
wiley   +1 more source

State of stress of a hull structure rammed by the bow of another vessel

Annals of "Dunărea de Jos" University of Galaţi: Fascicle XI Shipbuilding, 2016
The study of structural strength of the hull structure is essential to determine the safety and integrity of the ship, in case of collision. The objective of this work is to study the impact loading of a ship bow on a strengthened plane structure, using ...
Mădălina Prodan, Vladut Alexandru Vicol, Costel Iulian Mocanu   +2 more
doaj  

Analysis of the High Temperature Plastic Deformation Characteristics of 18CrNi4A Steel and Establishment of a Modified Johnson–Cook Constitutive Model

, 2023
To investigate the plastic deformation behavior of 18CrNi4A steel at high temperatures, an isothermal hot compression test was conducted on a Thermecmastor-Z series test machine at deformation temperatures from 1273 K to 1423 K and strain rates
Bingyang Wei, Chuang Jiang, Zhen Wang, Yongqiang Wang   +3 more
core   +1 more source

Atomic Tuning of Metal‐Support Interactions for Pathway‐Selective CO2 Photoreduction on TiO2

Advanced Science, EarlyView.
Single‐atom Fe and Cu catalysts anchored on TiO2 steer photocatalytic CO2 reduction toward distinct pathways. Fe sites favor rapid *CO desorption and selective CO formation, whereas Cu sites stabilize *CHO intermediates, enabling deep reduction and C─C coupling. Combined spectroscopy and DFT calculations reveal how metal–support interactions and oxygen
Dongyun Kim, Wonjae Ko, Byoung‐Hoon Lee, Sanghoon Kim, Yun Do Kim, Hyunsoo Ahn, Yoon Jung, Chan Woo Lee, Kug‐Seung Lee, Eunhee Gong, Junho Lee, Minho Kim, Taeghwan Hyeon, Su‐Il In   +13 more
wiley   +1 more source