Syllabus

Lecture Outlines

Introduction (1 lecture)

  • Types of Mechanical Behaviour; Relevance, Measurement, Data
  • Macroscopic, Continuum Behaviour
  • Physical Mechanisms Controlling Behaviour
  • Material Design and Selection

Elasticity (5 lectures)

  • Introduction
  • Stress, Strain, Compliance and Stiffness Tensors
  • Physical Origin of Elastic Moduli
  • Rubber Elasticity
  • Control of Modulus
  • Composites, Thermoelastic Analysis of Multilayers
  • Cellular Solids

Linear Viscoelasticity (3 lectures)

  • Introduction
  • Spring-Dashpot Models
  • Dynamic Mechanical Measurements
  • Time-Temperature Equivalence for Amorphous Polymers
  • Mechanisms of Linear Viscoelasticity
  • Viscoelasticity in Biomaterials

Plasticity (5 lectures)

  • Introduction
  • Equations of Plasticity
  • Dislocation Mechanics
  • Mechanism of Low Temperature Plasticity
  • Microstructural Strengthening Mechanisms in Metals

Creep (2 lectures)

  • Introduction
  • Mechanisms of Creep Deformation
  • Deformation Mechanism Maps
  • Creep Fracture
  • Material Design Against Creep

Fracture (3 lectures)

  • Griffith Fracture Theory; Energy Release rate; Fracture Modes
  • Linear Elastic Fracture Mechanics: Plane Crack Problem
  • Role of Crack Tip Plasticity; Plane Stress vs. Plane Strain
  • Case Study: Laser Linking of Interconnects

Fatigue (3 lectures)

  • Case Study: Fatigue Cracking in Boeing 747
  • Fatigue: Stress-Life vs. Strain Life Approach
  • Fatigue Crack Growth; Fatigue Striations

Grading

ACTIVITIES PERCENTAGES
Exams (3) 30% each
Problem Sets 10%