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Norton-Hoff model for deformation of growing solid shell of thin slab casting in funnel-shape mold

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Journal of Iron and Steel Research(International) 2022年第1期29卷 88-102页

作者： Alexander Vakhrushev Abdellah Kharicha Menghuai Wu Andreas Ludwig Gerald Nitzl Yong Tang Gernot Hackl josef Watzinger Christian M.G.Rodrigues Christian-Doppler Laboratory for Metallurgical Applications of Magnetohydrodynamics Montanuniversitat Leoben8700 LeobenAustria Primetals Technologies 4031 LinzAustria Chair of Simulation and Modeling of Metallurgical Processes Department of MetallurgyMontanuniversit?t Leoben8700 LeobenAustria RHI Magnesita GmbH 1120 ViennaAustria RHI Magnesita GmbH 8700 LeobenAustria

A funnel-type mold is commonly used to provide necessary clearance for the submerged entry nozzle in the thin slab casting(TSC).The partially solidified shell is subjected to the mechanical deformations,which can lead to the defects formation and,as a results,to a ***,the results of the flow simulation,performed by the finite volume method(FVM),are fed to the external package for the finite element analysis of stress and strain.A coupled model was assembled using“creeping solid”approach by blending the Norton-Hoff viscoplastic stress for the solidifying shell with the Newtonian viscous stress of the liquid *** FVM was used to combine both liquid and solid stress models within a single *** iterative procedure based on the improved both side diffusion method was introduced to treat the nonlinear relation between the viscoplastic stress and the strain *** modeled shell thickness was verified by previously published breakout measurements and the simulation *** distribution,obtained during the TSC simulation,dominantly corresponds to the viscoplastic *** numerical approach is robust and has direct industrial application.

关键词： Solid shell Viscoplastic stress Solidification Norton-Hoff model Thin slab Continuous casting Improved both side diffusion method OpenFOAM

Bringing the Fifth Industrial Revolution to the South

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Beijing Review 2022年第51期65卷 20-21页

作者： josef Gregory Mahoney East China Normal University the Institute for the Development of Socialism with Chinese Characteristics at Southeast University

Connectivity is one of the keys to global development, and a crucial threshold for granting the South access to the Fifth Industrial Revolution. Many governmental, nongovernmental and even private enterprises are working together to improve global connectivity in ways that foster sustainable, green development in the places that need it most, and to do so in ways that are both mutually beneficial and still profitable.

关键词： mutually Revolution Connectivity

AN ALTERNATIVE DEVELOPMENT INITIATIVE

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Beijing Review 2022年第39期65卷 12-15页

作者： josef Gregory Mahoney East China Normal University the Institute for the Development of Socialism with Chinese Characteristics at Southeast University

We’ve reached the first anniversary of the China-led Global Development Initiative(GDI),a platform launched by China at the UN for sharing experiences,enhancing cooperation and promoting multilateral synergies for *** than 60 countries have joined the Group of Friends of the GDI,with more than 100 countries and international organizations offering support.

关键词： GDI development offering

Opposite Paths,Opposite Outcomes

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Beijing Review 2022年第32期65卷 22-23页

作者： josef Gregory Mahoney politics and international relations at East China Normal University in Shanghai

Perhaps the most curious thing about COVID-19 is not its complicated pathology,its rapid mutations,the fact that many are infected and remain symptomless while others die,or that some experience a debilitating long version of the disease set in after the initial ***,in our highly globalized world,the rapid spread and almost universal human encounter with the disease has become a threshold moment in human *** other pandemics have come and gone in the past,and while scientists promise us COVID-19 is the first of many more to come,most of us will demarcate our lives in two periods:before the outbreak and after.

关键词： pathology infected comes

CHINA'S CONCEPT OF A SHARED FUTURE

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Beijing Review 2023年第28期66卷 18-19页

作者： josef Gregory Mahoney East China Normal University Institute for the Development of Socialism with Chinese Characteristics at Southeast University

The Chinese term renlei mingyun gongtongti,cited frequentlybyPresident Xi Jinping,poetically describes the Chinese vision of a future,global community,shared by the peoples of the *** its precise rendering in English remains a matter of some discussion,including"a community with a shared future for mankind/humanity,""a global community of shared future"and"a human community with a shared future,"and despite the term having evolved conceptually over the past years,its current meaning is quite clear.

关键词： meaning rendering precise

Iran and Saudi Arabia In the New Era

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Beijing Review 2023年第18期66卷 24-25页

作者： josef Gregory Mahoney East China Normal University the Institute for the Development of Socialism with Chinese Characteristics at Southeast University

It has long been assumed that the differences between Iran and Saudi Arabia were primarily civilizational and ideological. On the one hand, Iran is the modern incarnation of Persia, one of eight distinct ancient civilizations, which at its historical peak during the Achaemenid Empire(ca. 500 B.C.) ruled parts of what is today Central Asia, North Africa, Europe, the Arabian Peninsula and of course, what some refer to as the Middle East and others call West Asia. At its height, it was one of the largest empires in world history, one deeply admired by the world beaters who followed, including Alexander the Great.

关键词： modem primarily Middle

Reconsidering The U.S. Narrative

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Beijing Review 2022年第33期65卷 26-27页

作者： josef Gregory Mahoney East China Normal University Institute for the Development of Socialism with Chinese Characteristics at Southeast University

As *** malign China’s human rights record and in light of the recent official visit to China by UN High Commissioner for Human Rights Michelle Bachelet—who noted China’s incredible achievements and room for improvement—it’s important to bring a critical perspective to America’s claim that it champions human rights while China debases them.

关键词： U.S bases official

THE TWO SESSIONS: JUST A ‘RUBBER STAMP'?

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Beijing Review 2023年第35期66卷 16-17页

作者： josef Gregory Mahoney East China Normal University the Institute for the Development of Socialism With Chinese Characteristics at Southeast University

The Two Sessions,or lianghui in Chinese,refer to the annual meetings of the National People’s Congress(NPC)and the Chinese People’s Political Consultative Conference(CPPCC)National Committee in *** meetings normally take place in March and last around 10 days,with the CPPCC National Committee session opening ***,they represent the pinnacle of China’s political season and the top-end of China’s wholeprocess democracy.

关键词： Together Beijing season

HOW CHINAS YOUNG PEOPLE SEE THEMSELVES

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Beijing Review 2022年第18期65卷 18-19页

作者： josef Gregory Mahoney East China Normal University Institute for the Development of Socialism with Chinese Characteristics at Southeast University

May 4:the annual Chinese holiday for young people,linked historically to the 1919 May Fourth Movement when scores of students took to the streets to call for reforms,if not revolution,for national *** that time,China was in the midst of its"century of humiliation."The nation faced existential crises associated with imperial aggression,compounded by severe and widening gaps in political,economic,scientific and cultural development.

关键词： development street young