Required core course
Catalog Data: Credit: 4-0-0-4;
Prerequisite: MECH-210: Statics (previously, Mechanics I)
The fundamental topics of this course include: normal and shear stress and strain, Hooke’s law, Poisson’s ratio, generalized Hooke’s law, axial deformation, torsion of circular bars, angle of twist, bending of beams, flexure formula, flexural shear stress, beam deflections, combined stresses, transformation of stresses, Mohr’s circle (principal stresses), statically indeterminate problems, and columns. Homework will be assigned. Design related projects may also be assigned.
Textbook(s): Current Text Information Available at the Kettering Bookstore
Course Coordinator: Professor Raghu Echempati
Course Learning Objectives:
Objective 1: Apply the principles of Statics to determine the forces and moments on load carrying members. [ME PO’s a (35%), c (30%), e (30%), and i (5%)]
Objective 2: Analyze the stresses in load carrying members due to axial forces, bearing forces, torsional moments, bending moments and shear forces. [ME PO’s a (35%), c (30%), e (30%), and k (5%)]
Objective 3: Analyze the combined stresses in load carrying members due to axial forces, torsional moments, and bending moments acting together. [ME PO’s a (35%), c (25%), e (30%), and k (10%)]
Objective 4: Determine the deflection of load carrying, members due to axial loads, torsional moments and bending moments. [ME PO’s a (35%), c (30%), e (30%), and k (5%)]
Objective 5: Objective 5: Apply the principles learned from the objectives 1 through 4 to perform basic analysis and sizing of different structural members. [ME PO’s a (25%), c (25%), d (10%), e (25%), k(5%, p(10%)]
Prerequisites by topic:
- Rigid body equilibrium and free body diagrams
- Centroids, Center of Gravity
- Internal forces in structural members
- Moments of inertia
- Basic computer skills
Topics that are required be covered and tested on common finals:
- Review of Statics – Internal Forces
- Concepts of Stress and Strain: Hooke’s Law
- Concepts of Stress, Deformation and safety factor as applied to:
- Axial Loading (uniform and stepped bars), and
- Torsion Loading (uniform and stepped bars)
- Horse power calculations
- Applications
- Statically Indeterminate Problems as applied to:
- Axial loading (uniform and stepped bars)
- Effect of temperature (thermal stresses) in axial loading
- Applications
- Concepts of Bending Stress, deflection and safety factor as applied to:
- Transverse Loading (Pure Bending) (uniform section bars with concentrated as well as distributed loads)
- Shear Force and Bending Moment Diagrams for the above
- Deflection of beams for simple loading by superposition (using deflection tables)
- Applications
- Transformations of stresses and Combined Loading:
- Mohr’s circle for plane stress and determination of principal stresses
- Equivalent stress using yield criterion
- Applications (thin-walled cylinders, crankshaft example)
Other suggested topics for optional coverage:
- Effects of Stress Concentration in axial, torsion and transverse loadings
- Applications
- Statically Indeterminate Problems as applied to:
- Torsion loading (uniform and stepped bars)
- Applications
- Transverse (Flexural) Shear effect
- Applications
- Strain analysis by Mohr’s principle and strain rosettes
- Applications
- Euler Buckling (long slender rods)
- Applications
- Simple failure theory
- Other topics
Grading Policy:
Homework/classwork 25%
Quizzes/Midterms 50%
Mini Projects 5%
Common hour finals 20%
Schedule: Two sessions per week of 120 minutes
Computer usage: Basic Computer Skills (MathCAD/Working Model/Excel/MS-Word/or equivalent program)
Laboratory projects: May include computer based design projects
Relationship to professional component: Four credits of 100% Engineering Science.
Prepared by: Dr. Raghu Echempati, P.E. Date: March 24, 2009
