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Class Syllabus -

1. Introduction; Normal stress and strain; Stress/strain diagrams; Shear stress; Hooke's law
2. Allowable stress; Analysis vs. Design; Internal forces
3. Axially loaded members; Displacement diagrams
4. Indeterminate axially loaded structures; Stresses on inclined sections
5. Torsion stresses; Pure shear; Torsion problems
6. Power translation in shafts; Indeterminate torsional structures
7. Introduction to beam theory; Shear force and bending moment
8. Shear force and bending moment diagrams
9. Curvature; Stresses and strains in beams; Cross section shape
10. Midterm 1
11. Shear stresses in beams; Built-up beams
12. Plane stress; Principal stresses; Mohr's Circle
13. Mohr's Circle Problems; Thin shelled pressure vessels
14. Beam-columns; General combined loading and Mohr's circle
15. General combined loading and Mohr's circle
16. Problem Solving, Deflections of beams
17. Midterm 2
18. Deflections of beams
19. Student Presentations
20. Review for the Final

The student should be able to do the following as a result of taking this course:

• Understand the meaning of stress and strain, and how they are related mathematically.
• For the axial load and torsional load cases, compute the internal forces, reactions, stress, strain and displacement for determinate and simple indeterminate systems.
• Draw the shear and bending moment diagrams for determinate beams; compute the normal and shear stresses and strains anywhere within the beam; determine the deflection of the beam.
• For the above basic load cases and combinations thereof (plus thin shelled pressure vessels), determine the plane stress state for a point on the member (provided plane stress applies), and sketch the Mohr’s circle for that state of stress.
• Learn some basic spreadsheet programming which will relate to solving problems in this course and might become a valuable tool for your upper division classes.
• Communicate the above to the instructor clearly and legibly (I am not a mind reader).

• Example problems are located in two places for your convenience:  my web page, where you can print the pictures or save them onto a disc (right click the example pictures on a PC and drag-n-drop on a MAC), and the reserve library, where you can borrow and copy them.  I will assume that you have a copy of these during the lectures.
• Homework assignments are posted on my web page.
• Homework solutions are posted in the south corridor solution boxes, 4th floor, Science Building II, the day after homework is due.  The grader generally returns your homework after one week.

The student is strongly encouraged to attend all course lectures.  The student is responsible for knowing the lecture material, homework assignments, and  announcements that are made in class. The student should be aware that there is a strong correlation between student performance and class attendance.

The student is required to complete the homework, project, midterms, and final described below for his/her grade.  Grading method is to modify the 90/80/70/60 scale by considering the standard deviation of the class scores.  Exam attendance is mandatory.  If you have a good reason for missing an exam, you are responsible for notifying me and scheduling a make-up before the exam is given.  Unexcused absences will be given a zero score.

Attendance is mandatory for the group project presentations. Failure to appear and participate in the presentation will result in the student getting a zero score on the project.

Plan on spending 10-15 hours each week on your homework.

Traditional:
Student works assigned homework according to instruction sheet.  Student completes 3 of the assigned computer homework problems on computer (Matlab or Excel) – one from assignments 1-3, one from assignments 4-5, one from assignments 6-8.

Group of Two Students:
Two students work together as a group and hand in one set of homework problems for each assignment.  Students complete 5 of the assigned computer problems on computer (Matlab or Excel) – two from assignments 1-3, two from assignments 4-5, one from assignments 6-8.

Group of Three Students:
Three students work together as a group and hand in one set of homework problems for each assignment.  Students complete 7 of the assigned computer problems on computer (Matlab or Excel) – three from assignments 1-3, two from assignments 4-5, two from assignments 6-8.

Computer Homework Assignments
Computer Homework problems are to be completed just like ordinary homework problems, except that the solution section will include printouts from the computer solution.  Given, required, and solutions sections must be completed.  The student should derive equations or procedure used in the computer solution.  The student has the option of using Matlab or Excel to solve computer homework problems.  Due dates for computer problems are given in the class calendar.

• Matlab problems are to be submitted by the due dates given in the class calendar.  The matlab output should include an edited, commented session and/or command sequence and copies of all user generated scripts and functions.  The comments outline the solution for the grader.  The given and required sections may be included as a preface to the output (you can edit all of this in a word processor such as MSWord or text editor) or submitted on an extra sheet.  Indicate the output.  Make sure that all the submitted sheets include ID information which includes the student's name, assignment, class, and problem number.
• Excel Problems are to be submitted by the due dates given in the class calendar.  The calculations required by the problem are to be done using spreadsheet formulas.  The problem Given and Required sections are either to be typed into the spreadsheet or submitted on an additional page.   All the submitted sheets should include the student's name, assignment, class, and problem number.  In addition to the normal Excel output, the student should submit a printout showing (a) the problem formulas (using the Tools/Options/View/Formulas checkbox) and (b) the row and column headers (in print preview, use PageSetup/Sheet/Row and Column Headings checkbox).  The printouts must not exceed 2 pages in size.

 Instructions for Handing in Homework:
 

Paper	Use green grid “Engineer’s Computation Pad” available in the PSU Bookstore.
Header	Each sheet should have a header with your name, EAS 212, Homework #?, date due, Page ?/?.
Margin	The problem number goes in the right hand margin alongside the problem.  Do not write in the right hand margin otherwise.
Problem Solution	Each problem should have three headers - Given, Required (or Find), and Solution.
Given	List all the given information.  Draw a diagram of the problem.  This should be neat and legible, and show all the appropriate dimensions.  Use a ruler unless you can freehand neatly.
Required	List the information for which you are required to solve. If the problem is divided into sections (a, b, c, etc.) list each as listed in text.
Solution	Present a legible, organized solution of the problem.  Include any information which is relevant to the solution.  Organize the solution as listed in the required section. List all your assumptions. Double underline, or draw a box around the solution.
Collaboration	The instructor encourages you to exchange ideas with other students while you are doing your homework.  This exchange can help you to understand the concepts and also to practice teamwork.  Each student should make a goal of developing problem solving procedures that will be useful for all the problem types offered by the class.  Exams are for assessing individual problem solving skills.  Copying solutions from other students on exams is cheating and will not be tolerated.
Communication Skills	It is important to be able to communicate your ideas in this class (and in life, too).  Your exam scores will depend on your ability to communicate the solutions to the instructor.  Use the homework to practice these skills.
Late Homework Policy	You have up to one week past the due date to submit a homework assignment as a "late homework". The scoring system for "late homework" will be to score the problems you have completed ½ of the full amount. They will not be corrected, so you will have to look up the solutions yourself.   No late homework will be accepted during finals week.

Method of Working Problems on Tests

Show all work necessary for solving the problem on the test, because you will be scored for the process of solving the problem, not just getting the right answer.

Outline the method of solution

Use key words

State important assumptions

State what kind of problem you believe you are solving

Set up equations using variables, then show numbers you are using for those variables, then show the result of the calculation.

• After you have completed the problem, cross out any work which is incorrect (you will be marked down for displaying both correct and incorrect work), such as "dead ends".  The instructor needs to be able to follow the flow of your thoughts to achieve the answer.
• Don’t cross out your work if you get stuck and can’t finish the problem; you will get partial credit for what you know.  Also, don’t cross out your work if you’re not sure which answer is right.
• Read the directions carefully and address every part of the problem.
• Budget your time!  If problems are all weighted the same, work on the easiest one first and progress to the hardest.

Class Calendar

  

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