Mechanics and Materials II pdf notes

Mechanics and Materials II

Tip-loaded cantilever beam, excerpted from lecture 2. (Image courtesy of David Parks.)

Course Highlights

This course site features lecture notes.

Course Description

This course provides Mechanical Engineering students with an awareness of various responses exhibited by solid engineering materials when subjected to mechanical and thermal loadings; an introduction to the physical mechanisms associated with design-limiting behavior of engineering materials, especially stiffness, strength, toughness, and durability; an understanding of basic mechanical properties of engineering materials, testing procedures used to quantify these properties, and ways in which these properties characterize material response; quantitative skills to deal with materials-limiting problems in engineering design; and a basis for materials selection in mechanical design.

SES # TOPICS LECTURE NOTES Elasticity and Solid Mechanics 1 Course Outline Material Behavior under Uniaxial Loading Displacement and Strain Stress and Equilibrium Stress- strain 2 Applications: Beam Bending, Buckling and Vibration (PDF 1) (PDF 2) 3 Mechanisms of Elasticity and Viscoelasticity 4 Lab 1: Beam Bending, Buckling and Vibration 5 3-D Linear Thermo-elasticity: Strain-displacement, Stress-strain-temperature, and Stress-equilibrium (PDF) 6 Simple States of Elastic Stress, Strain, and Displacement (PDF) 7 Lab 2: Engineering Polymers: Viscoelasticity, Strength, and Ductility 8 Limits to Elasticity: Strength and Multi -axial Yield Condition Boundary Conditions and Boundary Value Problems 9 Elasticity of Composite Materials Applications (PDF) 10 Lab 3: Stress Concentration Plasticity and Creep 11 Uniaxial Elastic -plastic Behavior Elastic- plastic Beam -bending (PDF) 12 Ideal Shear Strength Dislocations 13 Lab 4: Sheet Bending 14 Strengthening Mechanisms Strain Hardening (PDF) 15 Limit Analysis (PDF) 16 Lab 5: Heat Treatment 17 Applications of Limit Analysis 18 Quiz I 19 High -temperature Deformation: Creep and Stress Relaxation (PDF 1) (PDF 2) (PDF 3) 20 High-temperature Deformation Mechanisms Resisting Creep (PDF) 21 Lab 6: Project 1 Fracture 22 Ideal Cleavage Strength Stress Concentration and Cracks 23 Crack-tip Stress Intensity Factors Critical Stress Intensity (PDF) 24 Lab 7: Fracture Toughness 25 Linear Elastic Fracture Mechanics (LEFM) (PDF) 26 Applications of LEFM (PDF) 27 Lab 8: Project 2 Fatigue 28 Fatigue Crack Propagation Defect-tolerant Fatigue Design and Maintenance (PDF) 29 Defect-free Fatigue Design: High- cycle Fatigue (PDF) 30 Defect -free Fatigue Design: Low-cycle Fatigue (PDF) 31 Lab 9: Project 3 32 Applications: Strain-amplitude/Fatigue-life Behavior Notch Effects in High-cycle Fatigue Supporting Files lec23_monocyclicro.m (M) lec23_notchfatigue.m (M) lec23_strainlife.m (M) 33 Quiz II 34 Lab 10: Project Presentations Material Selection for Design 35 Principles for Material Selection: Performance, Properties, and Constraints 36 Optimization Material Indices of Merit 37 Lab 11: Course Review (Optional) 38 Final Exam