Unit 2110: Materials Selection and Design

1. Introduction to Materials Selection and Design

• Importance of materials selection in engineering design
• Factors influencing material choice
  • Mechanical requirements
  • Environmental conditions
  • Economic considerations
• Role of materials in product performance and functionality

2. Material Properties and Performance

• Mechanical properties
  • Strength, hardness, toughness, ductility, fatigue resistance
• Thermal properties
  • Conductivity, expansion, heat capacity
• Electrical properties
  • Conductivity, resistivity, dielectric strength
• Chemical properties
  • Corrosion resistance, chemical stability
• Impact of properties on material performance in applications

3. Material Selection Criteria

• Mechanical strength and durability
• Cost analysis and economic viability
• Availability and supply chain considerations
• Environmental impact and sustainability
• Recyclability and end-of-life considerations
• Compliance with standards and regulations

4. Material Classification and Selection Process

• Classification of materials
  • Metals, ceramics, polymers, composites
  • Properties and typical applications
• Systematic material selection approach
  • Defining design requirements
  • Screening and ranking materials
  • Decision-making tools (e.g., Ashby charts)

5. Material Testing and Characterization

• Overview of testing purposes
• Destructive testing methods
  • Tensile, compression, impact, hardness tests
• Non-destructive testing methods
  • Ultrasonic, radiographic, magnetic particle, dye penetrant
• Material characterization techniques
  • Microscopy, spectroscopy, thermal analysis
• Ensuring materials meet design specifications and standards

6. Design Optimization through Materials Selection

• Relationship between material choice and design optimization
• Enhancing product performance and reliability
• Cost-efficiency through material selection
• Sustainability and lifecycle cost considerations

7. Materials Sustainability and Environmental Impact

• Principles of sustainable materials selection
• Life cycle assessment (LCA)
• Environmental impacts of material production and disposal
• Strategies for reducing ecological footprint
  • Use of recycled materials
  • Minimizing waste and energy consumption

8. Emerging Materials and Technologies

• Nanomaterials and nanotechnology applications
• Advanced composites
• Smart materials (shape memory alloys, piezoelectrics, etc.)
• Potential impacts on innovative product design

9. Case Studies in Materials Selection and Design

• Industry examples
  • Automotive materials optimization
  • Aerospace materials innovation
  • Consumer electronics material choices
• Lessons learned and best practices
• Discussion of design challenges and solutions