scholarly journals Contact stress analysis and optimization of single crystal turbine blade tenon/disk mortise structure considering thermal-solid coupling

2017 ◽  
Vol 108 ◽  
pp. 02004
Author(s):  
Lei Li ◽  
Zhonghao Tang ◽  
Dingyuan Deng ◽  
Mengchuang Zhang ◽  
Jiawei Yu
Keyword(s):  
Single Crystal ◽  
Stress Analysis ◽  
Turbine Blade ◽  
Contact Stress ◽  
Single Crystal Turbine Blade

The Analysis of Contact Fatigue Behavior in Ni-Base Single Crystal Superalloy Turbine Blade Rabbet

2014 ◽  
Vol 633-634 ◽  
pp. 1104-1110
Author(s):  
Guo Cai Zhou ◽  
Hai Qing Pei
Keyword(s):  
Shear Stress ◽  
Single Crystal ◽  
Turbine Blade ◽  
Contact Area ◽  
Fatigue Behavior ◽  
Stress Gradient ◽  
Contact Fatigue ◽  
Tooth Contact ◽  
Rate Dependent ◽  
Single Crystal Turbine Blade

Based on the dislocation pile-up theory and the crystal plastic theory, a rate-dependent crystallographic plastic finite element method (FEM) was used to analyze the stress distribution in the contact zone of single crystal turbine blade rabbet. The FEM results show that the maximum stress and the maximum resolved shear stress location are in the upper edge of the first tooth contact area of the rabbet. The surface crack initiates in the edge and grows as the zigzag wave. The deflected angle of the plane defined by maximum resolved shear stress gradient direction and the upper edge of the first tooth contact area of the rabbet with respect to the Z axis is 35°. The fracture occurs along the {-1-11} plane. Fracture behavior of rabbet/groove modeling specimens made of nickel-based single crystal superalloys was studied by corresponding contact fatigue experiments. The initial place and developing direction of the fatigue crack observed from experiments are found to be in good agreement with the predicted results based FEM.

scholarly journals Development of advanced columnar and single crystal turbine blade.

1990 ◽  
Vol 29 (4) ◽  
pp. 259-261
Author(s):  
Y. Ohta ◽  
Y. Nakagawa ◽  
H. Honda ◽  
S. Ohama ◽  
A. Ohtomo
Keyword(s):  
Single Crystal ◽  
Turbine Blade ◽  
Single Crystal Turbine Blade

Modeling of Unidirectional Growth in a Single Crystal Turbine Blade Casting

2006 ◽  
pp. 111-116
Author(s):  
Qing Yan Xu ◽  
Bai Cheng Liu ◽  
Zuo Jian Liang ◽  
Jia Rong Li ◽  
Shi Zhong Liu ◽  
...  
Keyword(s):  
Single Crystal ◽  
Turbine Blade ◽  
Single Crystal Turbine Blade ◽  
Blade Casting

Determining the Optimal Crystallographic Orientation in a Single Crystal Turbine Blade to Increase its Strength Reliability

2021 ◽  
Author(s):  
Boris Vasilyev ◽  
Alexander Selivanov ◽  
Artem Semenov ◽  
Andrey Bortnikov ◽  
Valentina Limonova
Keyword(s):  
Single Crystal ◽  
Turbine Blade ◽  
Crystallographic Orientation ◽  
Single Crystal Turbine Blade

Combining neutron diffraction and imaging for residual strain measurements in a single crystal turbine blade

2012 ◽  
Vol 45 (1) ◽  
pp. 39-45 ◽  
Author(s):  
S. Pierret ◽  
A. Evans ◽  
A.M. Paradowska ◽  
A. Kaestner ◽  
J. James ◽  
...  
Keyword(s):  
Neutron Diffraction ◽  
Single Crystal ◽  
Turbine Blade ◽  
Residual Strain ◽  
Strain Measurements ◽  
Single Crystal Turbine Blade
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