Fatigue analysis of additively manufactured lattice structures – Complete Phd and Masters Thesis

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Introduction

Fatigue analysis is a critical aspect of engineering design, as it helps to predict the structural durability and lifespan of materials under cyclic loading conditions. Additive manufacturing, or 3D printing, has gained popularity in recent years for its ability to create complex lattice structures with unique mechanical properties. These lattice structures are increasingly being used in various engineering applications, such as aerospace components, medical implants, and automotive parts. However, the fatigue behavior of additively manufactured lattice structures is not well understood, and there is a need for further research in this area.

This thesis aims to investigate the fatigue behavior of additively manufactured lattice structures and develop a methodology for predicting their fatigue life. The study will focus on characterizing the fatigue properties of different lattice designs, analyzing the influence of material properties and manufacturing parameters on fatigue performance, and developing predictive models for fatigue life estimation.

Chapter 1: Introduction
1.1 Introduction
1.2 Background of study
1.3 Problem Statement
1.4 Objective of study
1.5 Limitation of study
1.6 Scope of study
1.7 Significance of study
1.8 Structure of the Thesis
1.9 Definition of terms

Chapter 2: Literature Review
2.1 Overview of fatigue analysis
2.2 Additive manufacturing technology
2.3 Mechanical properties of lattice structures
2.4 Fatigue behavior of metallic materials
2.5 Fatigue analysis methods
2.6 Previous studies on fatigue analysis of lattice structures
2.7 Factors influencing fatigue performance
2.8 Modeling and simulation techniques
2.9 Experimental testing methods
2.10 Gaps in existing research

Chapter 3: System Design and Methodology
3.1 Selection of lattice designs
3.2 Material characterization
3.3 Manufacturing process optimization
3.4 Fatigue testing setup
3.5 Data acquisition and analysis
3.6 Development of fatigue life prediction models
3.7 Validation of models
3.8 Sensitivity analysis
3.9 Statistical analysis

Chapter 4: System Implementation
4.1 Experimental setup and procedure
4.2 Material testing and characterization
4.3 Manufacturing process parameters
4.4 Fatigue testing protocols
4.5 Data processing and analysis
4.6 Model development and validation
4.7 Sensitivity analysis results
4.8 Statistical interpretation
4.9 Comparison with existing models
4.10 Discussion of results

Chapter 5: Conclusion and Summary
5.1 Summary of findings
5.2 Conclusions
5.3 Recommendations for future research
5.4 Implications for engineering practice
5.5 Contribution to knowledge

Thesis Overview

Fatigue analysis of additively manufactured lattice structures is a crucial research area in the field of engineering design. Additive manufacturing technologies have enabled the creation of intricate lattice structures with unique mechanical properties, making them ideal for a wide range of applications. However, the fatigue behavior of these structures is not well understood, posing challenges for their use in critical engineering applications.

This thesis aims to address this gap by investigating the fatigue properties of additively manufactured lattice structures and developing a methodology for predicting their fatigue life. The study will involve a comprehensive literature review, experimental testing, and computational modeling to understand the factors influencing fatigue performance and create predictive models for fatigue life estimation.

The research will contribute to the advancement of additive manufacturing technology and help engineers design more reliable and durable lattice structures for various applications. By improving our understanding of the fatigue behavior of lattice structures, this study will have significant implications for the design and optimization of lightweight, high-performance components.

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