Heat Transfer & Thermal Stress Analysis of Plastic-Encapsulated ICs

1985 ◽  
Vol R-34 (5) ◽  
pp. 402-409 ◽  
Author(s):  
Kiyoshi Miyake ◽  
Hideto Suzuki ◽  
Shoichi Yamamoto
Keyword(s):  
Heat Transfer ◽  
Thermal Stress ◽  
Stress Analysis ◽  
Thermal Stress Analysis

scholarly journals Modeling of Thermal and Mechanical Behavior of ZrB2-SiC Ceramics after High Temperature Oxidation

2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
Jun Wei ◽  
Lokeswarappa R. Dharani ◽  
K. Chandrashekhara ◽  
Gregory E. Hilmas ◽  
William G. Fahrenholtz
Keyword(s):  
Heat Transfer ◽  
Finite Element ◽  
Thermal Stress ◽  
High Temperature ◽  
Mechanical Behavior ◽  
Stress Analysis ◽  
Heat Transfer Analysis ◽  
Temperature Oxidation ◽  
Thermal Stress Analysis ◽  
Sic Ceramics

The effects of oxidation on heat transfer and mechanical behavior of ZrB2-SiC ceramics at high temperature are modeled using a micromechanics based finite element model. The model recognizes that when exposed to high temperature in air ZrB2-SiC oxidizes into ZrO2, SiO2, and SiC-depleted ZrB2 layer. A steady-state heat transfer analysis was conducted at first and that is followed by a thermal stress analysis. A “global-local modeling” technique is used combining finite element with infinite element for thermal stress analysis. A theoretical formulation is developed for calculating the thermal conductivity of liquid phase SiO2. All other temperature dependent thermal and mechanical properties were obtained from published literature. Thermal stress concentrations occur near the pore due to the geometric discontinuity and material properties mismatch between the ceramic matrix and the new products. The predicted results indicate the development of thermal stresses in the SiO2 and ZrO2 layers and high residual stresses in the SiC-depleted ZrB2 layer.

Heat Transfer and Thermal Stress Analysis of Gas Turbine Blade Considering Off-Design Condition

2021 ◽  
Author(s):  
Jeongwon Lee ◽  
Minho Bang ◽  
Hee Seung Park ◽  
Taehyun Kim ◽  
Hee Koo Moon ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Thermal Stress ◽  
Stress Analysis ◽  
Gas Turbine ◽  
Turbine Blade ◽  
Gas Turbine Blade ◽  
Thermal Stress Analysis
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