Physical model construction for electrical anisotropy of single crystal zinc oxide micro/nanobelt using finite element method

2014 ◽  
Vol 104 (15) ◽  
pp. 153109 ◽  
Author(s):  
Guangbin Yu ◽  
Chaolong Tang ◽  
Jinhui Song ◽  
Wenqiang Lu
2010 ◽  
Vol 59 (3) ◽  
pp. 1923
Author(s):  
Han Qi-Gang ◽  
Ma Hong-An ◽  
Xiao Hong-Yu ◽  
Li Rui ◽  
Zhang Cong ◽  
...  

2021 ◽  
Vol 12 (01) ◽  
pp. 2150002
Author(s):  
Xiaoyu Qin ◽  
Guomin Han ◽  
Shengxu Xia ◽  
Weijie Liu ◽  
De-Ye Lin

This paper reports the modeling and simulation of cyclic behavior of single crystal nickel-based superalloy by using the crystal plasticity finite element method. Material constitutive model based on the crystal plasticity theory is developed and is implemented in a parallel way as user subroutine modules embedded in the commercial Abaqus[Formula: see text] software. For simplicity in calibration and without loss of generality, the crystal plasticity constitutive relationship used in this work takes the form that only contains a few parameters. The parameters are optimized by using the Powell algorithm. We employ the calibrated constitutive model with the finite element solver on a cuboid and a blade to simulate cyclic and anisotropic properties of single crystal superalloy. Results show that the predicted stress–strain curves are in good agreement with the experimental measurements, and anisotropic results are presented in both elastic and plastic regions.


2012 ◽  
Vol 433-440 ◽  
pp. 2029-2033
Author(s):  
Shu Zhang ◽  
Lei Meng

Based on finite element Method a dynamic mathematical model is established, and the simulation of stress distribution around the defects of single crystal nickel-based superalloysis also established with ANSYS. After the change of stress field with time is analyzed, the result is compared with that achieved through numerical calculation and experimental analysis. The comparison shows that the finite element method is effective to study the stress distribution and can provide basis for creep features and microstructure evolution.


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