声明
摘要
Abstract
Table of Contents
Nomenclature
Chapter 1．Introduction
1．1 Significance of Research on the Topic
1．2 Literature Review
1．3 Objective of Research
1．4 Methodology for Research
1．4．1 Fluid Structure Interaction(FSI)
1．4．2 Outline of work
1．5 Thesis Outline
Chapter 2．Fatigue：Characteristics，Evaluation and Monitoring
2．1 Thermal Fatigue：An Important Consideration
2．2 Types of Fatigue
2．3 Stages of Fatigue Failure
2．3．3 Fast Fracture(Catastrophic Failure)
2．4 Phenomena Causing Thermal Fatigue
2．4．1 Temperature Transients
2．4．2 Thermal Stratification
2．4．3 Turbulence Penetration
2．5 Fatigue Life Prediction Methods
2．5．1 Stress Life Approach
2．5．2 The “Mean Stress” Effect for Stress-Life Criteria
2．5．3 Strain Life Approach
2．5．4 The Fracture Mechanics Approach
2．5．5 Summary
2．6 Factors Influencing Fatigue Life
2．6．1 Fuch’s Method
2．7 Cyclic Stress-Strain Behavior
2．7．1 Ramberg-Osgood Stress-Strain Relation
2．8．1 Biaxiality Ratio Method
2．8．2 Critical Plane Method
2．9 Cumulative Damage
2．10．1 Nondestructive testing
2．10．2 FMS in Nuclear Industry
Chapter 3．Computational Fluid Dynamics(CFD)：Background and Theory
3．1 Computational Fluid Dynamics
3．2 Advantages of CFD
3．3 Concept of CFD
3．4 Performing a CFD Analysis
3．4．1 Pre-processing
3．4．2 Processing
3．4．3 Post-processing
3．5 CFD Computational Tools
3．6 Problem-Solving with CFD
3．7 CFD Governing Equations
3．7．1 Conservation Equations
3．7．2 Equation of state
3．7．3 Newton's law of viscosity(empirical relation for viscosity μ)
3．7．6 (RANS)Equations
3．8 Modelling the Turbulence
3．8．1 SST k-ω Turbulence Model
3．9 Finite Volume Method
3．10 Differencing Schemes
3．10．1 Central Differencing Scheme
3．10．2 Upwind Differencing Scheme
Chapter 4．Finite Element Method(FEM)：Background and Theory
4．1 Finite Element Analysis
4．2 Steps for FEM
4．3 Thermal Stress
4．4 Stress Singularity
4．5 ANSYS Fatigue Module Overview
4．6 Types of Cyclic Loadings
4．6．2 Constant Amplitude，Non-Proportional Loading
4．6．4 Variable Amplitude，Non-Proportional Loading
Chapter 5．Thermal Hydraulic Analysis：Modelling，Simulations and Results
5．1 Working with ANSYS CFX
5．2 Building the Model
5．3 ICEM Meshing
5．3．1 Checking the Quality of Mesh
5．4 Defining the Run in CFX-Pre
5．4．1 Setting up boundary conditions
5．4．2 Transient Time
5．5 Results
Chapter 6．Structural Analysis：Modelling，Simulations and Resuits
6．1 Building the model
6．2 Slicing the Model for Efficient Meshing
6．3 Engineering Data for the Material
6．4 ANSYS Mechanical Meshing
6．5 Analysis Settings
6．7 Results
6．7．1 Results for Fatigue Characteristics
Chapter 7．Discussion and Conclusions
References
Acknowledgement
Dedication
About The Author
List of Figures
List of Tables
List of Graphs
