Plan for Monday, October 26, 2015
9:00
Review
- superposition for beam deflection
- singularity functions for beam deflection
Goals
9:05
Rigidity and stiffness of mechanical elements
9:25
Midterm:
- Closed book, no written materials allowed, no devices except a non-programmable calculator.
- I'll provide the paper. You bring writing implement.
- You will be expected to remember equations but not super long ones.
- All numerical math will be such that you can get an estimate without a calculator or answers that get all the way up to punching in the numbers will be accepted.
Chapter 1
- 1-1: Design
- 1-2: Mechanical Engineering Design
- 1-3: Phases and Interactions of the Design Process
- 1-4: Design Tools and Resources
- 1-5: The Design Engineer's Professional Responsibilities
- 1-6: Standards and Codes
- 1-7: Economics
- 1-8: Safety and Product Liability
- 1-9: Stress and Strength
- 1-10: Uncertainty
- 1-11: Design Factor and Factor of Safety
- 1-12: Reliability and Probablity of Failure
- 1-13: Relating the Design Factor to Reliability
- 1-14: Dimensions and Tolerances
- 1-15: Units
- 1-16: Calculations and Significant Figures
- 1-17: Design Topic Interdependencies
Recommended problems: 1-9, 1-12, 1-13, 1-14, 1-15, 1-16, 1-17, 1-21, 1-23, 1-24, 1-29, 1-31, 1-32
Chapter 3
- 3-1: Free body diagrams
- 3-2: Shear force and bending moment diagrams
- 3-3: Singularity functions
- 3-4: Stress
- 3-5: Cartesion stress components
- 3-6: Mohr's circle for plane stress
- 3-7: General three dimensional stress
- 3-8: Elastic strain
- 3-9: Uniformly distributed stress
- 3-10: Normal stresses for beams in bending
- 3-11: Shear stresses for beams in bending
- 3-12: Torsion (exclude "Closed Thin-Walled Tubes" and "Open Thin-Walled Sections"
- 3-13: Stress concentrations
- 3-14: Stresses in pressurized cyclinders
- 3-18: Curved beams in bending
- 3-19: Contact stresses
Recommend problems: 3-1 to 3-4, 3-5 to 3-8, 3-9 to 3-12, 3-14, 3-15 to 3-19, 3-20/21/22, 3-23, 3-25/26, 3-29, 3-35 to 3-38, 3-42, 3-44, 3-45,
Chapter 4
- 4-3: Deflection due to bending
- 4-4: Beam deflection methods
- 4-5: Beam deflections by superposition
- 4-6: Beam deflections by singularity functions
Top review requests:
- combined loadings and stress state: hw 2 prob 1, quiz 2
- singularity functions for beams
- problem 1 on hw 2: small angle deflection
- stress in curved beams
- beam deflection
9:45
Wrap up