Dynamic Stress of a Liquid Metal Target Container Under Pulsed Heating

1998 ◽  
Vol 120 (4) ◽  
pp. 359-364 ◽  
Author(s):  
L. Ni ◽  
G. S. Bauer
Keyword(s):  
Liquid Metal ◽  
Dynamic Stress ◽  
Coupling Effect ◽  
Initial Time ◽  
Heat Equations ◽  
Metal Target ◽  
Inertia Effects ◽  
Pulsed Heating ◽  
Commercial Code ◽  
Transient Thermal

In this report, the dynamic response of a liquid metal target container for pulsed spallation neutron sources have been simulated using both a commercial code and a self-developed program. The main features and differences of both programs are presented. A transient thermal analysis was first examined with coupled and uncoupled heat equations. Temperature distribution results showed that the coupling effect between two pulses can be neglected. Stress waves due to direct pulsing have been calculated on the target container, investigating the effects of loading rate and structure thickness. Results from the transient thermal-structural analysis showed that, due to inertia effects, the dynamic stress in the target container is contributed mainly from direct heating in the initial time stage, and later from the pressure wave in the target liquid as it reaches the container wall.

Hydrodynamic characteristics of an experimental model of the target in the MK-1 liquid-metal target system

Atomic Energy ◽  
2006 ◽  
Vol 101 (3) ◽  
pp. 636-643
Author(s):  
A. A. Boronin ◽  
A. D. Efanov ◽  
Yu. D. Levchenko ◽  
Yu. I. Orlov ◽  
V. S. Fedotovskii
Keyword(s):  
Liquid Metal ◽  
Experimental Model ◽  
Target System ◽  
Hydrodynamic Characteristics ◽  
Metal Target

Basic concepts for the liquid-metal target loop of accelerator-controlled reactors

Atomic Energy ◽  
1996 ◽  
Vol 81 (3) ◽  
pp. 647-650
Author(s):  
A. V. Bezonosov ◽  
K. B. Veshnyakov ◽  
V. E. Serov
Keyword(s):  
Liquid Metal ◽  
Metal Target ◽  
Basic Concepts

Initial Free Surface Instabilities on a High-Speed Water Jet Simulating a Liquid-Metal Target

1999 ◽  
Vol 36 (1) ◽  
pp. 69-84 ◽  
Author(s):  
Kazuhiro Itoh ◽  
Yoshiyuki Tsuji ◽  
Hideo Nakamura ◽  
Yutaka Kukita
Keyword(s):  
Free Surface ◽  
Liquid Metal ◽  
High Speed ◽  
Water Jet ◽  
Metal Target

Features of copper coatings growth at high-rate deposition using magnetron sputtering systems with a liquid metal target

2017 ◽  
Vol 324 ◽  
pp. 111-120 ◽  
Author(s):  
G.A. Bleykher ◽  
A.O. Borduleva ◽  
A.V. Yuryeva ◽  
V.P. Krivobokov ◽  
J. Lančok ◽  
...  
Keyword(s):  
Liquid Metal ◽  
Magnetron Sputtering ◽  
High Rate ◽  
Metal Target ◽  
Copper Coatings

Design measures to counteract pressure wave effects in the liquid metal target META:LIC

2014 ◽  
Vol 450 (1-3) ◽  
pp. 212-218
Author(s):  
J.R. Fetzer ◽  
A.G. Class ◽  
J. Wolters
Keyword(s):  
Liquid Metal ◽  
Pressure Wave ◽  
Metal Target ◽  
Wave Effects

Computational and experimental studies of the flow field near the beam entrance window of a liquid metal target

2014 ◽  
Vol 275 ◽  
pp. 96-106
Author(s):  
Vadims Geža ◽  
Rade Ž. Milenković ◽  
Ralf Kapulla ◽  
Sergejs Dementjevs ◽  
Andris Jakovičs ◽  
...  
Keyword(s):  
Liquid Metal ◽  
Flow Field ◽  
Experimental Studies ◽  
Entrance Window ◽  
Metal Target

scholarly journals A Damage Constitutive Model of Red Sandstone under Coupling of Wet-Dry Cycles and Impact Load

2019 ◽  
Vol 2019 ◽  
pp. 1-12 ◽  
Author(s):  
Bin Du ◽  
Haibo Bai
Keyword(s):  
Constitutive Model ◽  
Dynamic Stress ◽  
Loading Rate ◽  
Impact Load ◽  
Coupling Effect ◽  
Dynamic Compression ◽  
Dominant Role ◽  
Stress Strain ◽  
Red Sandstone ◽  
Damage Constitutive Model

In the engineering fields of mining, tunneling, slopes, and dams, rocks are usually subject to the coupling effect of impact load and wet-dry cycles. The deformation rule of rocks under the coupling effects is a symbolic mechanical property, which lays the foundation for the design and evaluation in the rock engineering. In this paper, the coupling damage was classified as mesodamage induced by wet-dry cycles and macrodamage induced by impact load, and the loading rate effect was considered as the load damage. Besides, a constitutive model of coupling damage was concluded based on Lemaitre’s strain equivalent assumption. Consequently, the validity of the model was verified by a series of dynamic compression tests of red sandstone. Results indicated that the proposed damage constitutive model can definitely describe the dynamic stress-strain curves of red sandstone after wet-dry cycles and impact load. The evolution of coupling damage curves showed that wet-dry cycle damage plays a dominant role in the elastic deformation stage, while the yield failure stage is controlled by the load damage in which the loading rate cannot be ignored. Parametric study was also performed to analyze the effect of parameters on dynamic stress-strain curves. The proposed mode has the simple and reliable operation with few parameters and can efficiently predict the long-term deformation behavior of rocks subject to multiple wet-dry cycles.

Thermal-hydraulic investigations on a pilot liquid metal target

2000 ◽  
Vol 202 (2-3) ◽  
pp. 297-310 ◽  
Author(s):  
X Cheng ◽  
I Slessarev
Keyword(s):  
Liquid Metal ◽  
Metal Target

Radiation damage analysis for the liquid metal target META:LIC

2014 ◽  
Vol 450 (1-3) ◽  
pp. 219-224
Author(s):  
B. Weinhorst ◽  
U. Fischer ◽  
A.G. Class ◽  
J.R. Fetzer
Keyword(s):  
Liquid Metal ◽  
Radiation Damage ◽  
Damage Analysis ◽  
Metal Target

On an Axisymmetric Coupled Thermal Stress Problem in a Finite Circular Cylinder

1983 ◽  
Vol 50 (1) ◽  
pp. 116-122 ◽  
Author(s):  
Y. Takeuti ◽  
R. Ishida ◽  
Y. Tanigawa
Keyword(s):  
Thermal Stress ◽  
Circular Cylinder ◽  
Thermal Stresses ◽  
Coupling Effect ◽  
Three Dimensions ◽  
Thermomechanical Coupling ◽  
Coupling Term ◽  
Wide Range ◽  
A New Technique ◽  
Transient Thermal

This paper presents a general treatment of the transient thermal stresses of a finite circular cylinder with consideration of the thermomechanical coupling effect using a new technique. The method used is quite useful for the solution of a wide range of transient thermal stress problems in two or three dimensions. From numerical results, we can find that there is a clear effect on the thermal stress distribution when the coupling term is taken into account.

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