Model of three-dimensional thermal stress applied in cleaning of black crusts on granite

2020 ◽  
Author(s):  
Zailin Ke ◽  
Hongyu Wang ◽  
Baoxing Xiong ◽  
Fan Gao ◽  
Xiang Zhang ◽  
...  
Keyword(s):  
Thermal Stress ◽  
Three Dimensional ◽  
Black Crusts

Steady-State Formulation for Stress and Distortion of Welds

1994 ◽  
Vol 116 (4) ◽  
pp. 467-474 ◽  
Author(s):  
M. Gu ◽  
J. A. Goldak
Keyword(s):  
Thermal Stress ◽  
Steady State ◽  
Three Dimensional ◽  
Significant Gain ◽  
Free Boundaries ◽  
Flow Lines ◽  
Eulerian Formulation ◽  
Noticeable Reduction ◽  
Computing Speed ◽  
Lagrangian Frame

A steady state formulation has been developed for thermal stress analysis. It uses features from both the Lagrangian formulation and the Eulerian formulation. The mesh sits on an Eulerian frame but deforms as if in the Lagrangian frame. Therefore, it is suitable for steady state problems with free boundaries. History dependent parameters are integrated along flow lines. A significant gain in computing speed and/or spatial resolution over transient analyses has been achieved together with a noticeable reduction for memory requirements. Numerical results are given for a three-dimensional analysis of edge weld.

THERMAL EXPANSION OF PHASE-CHANGE RANDOM ACCESS MEMORY CELLS

2008 ◽  
Vol 1072 ◽  
Author(s):  
Jianming Li ◽  
L.P. Shi ◽  
H.X. Yang ◽  
K.G. Lim ◽  
X.S. Miao ◽  
...  
Keyword(s):  
Thermal Stress ◽  
Phase Change ◽  
Electrical Power ◽  
Thermal Strain ◽  
Three Dimensional ◽  
Amorphous State ◽  
Random Access ◽  
Random Access Memory ◽  
Access Memory ◽  
Three Dimensional Finite Element

ABSTRACTThree-dimensional finite element method (FEM) is used to solve the thermal strain-stress fields of phase-change random access memory (PCRAM) cells. Simulation results show that thermal stress concentrates at the interfaces between electrodes and phase change layer and it is significantly larger than that within the phase change layer. It has been found that the peak thermal stress is linearly related to the voltage of electrical pulse in the reset process but once amorphous state is produced in the cell, a nonlinear relationship between thermal stress and electrical power exists. This paper reported the change of thermal stress during set process. It was found that the stress decreases significantly due to the amorphous active region during set processes.

Thermal–stress analysis of a three-dimensional end-plate steel joint

2012 ◽  
Vol 29 ◽  
pp. 619-626 ◽  
Author(s):  
Andreas Kalogeropoulos ◽  
Georgios A. Drosopoulos ◽  
Georgios E. Stavroulakis
Keyword(s):  
Thermal Stress ◽  
Stress Analysis ◽  
Three Dimensional ◽  
Plate Steel ◽  
Thermal Stress Analysis ◽  
Steel Joint ◽  
End Plate
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