IET 311 – Statics Winter 1999

IET 311 – Statics Winter 2000

Catalog Description: IET 311. Statics (4). Prerequisites, PHYS 111 or 211 and MATH 172.2 or permission of instructor. Introductory statics including forces and equilibrium. Principles of structures including trusses, beams, frames, machines and friction

Textbook: Engineering Mechanics, Statics, Eighth Edition, R. C. Hibbeler. MacMillan, 1998.

Instructor: Professor W. J. Bender
Hogue Technology, Room 202
Phone: Office 963-3543, Home 933-3583
Benderw@cwu.edu

Office Hours: M, W, & F 7 –10 AM, or make an appointment.

Objectives: This course is intended to provide the student with basic analytical problem solving skills in engineering mechanics, specifically statics, including simple structures. Upon completion of this course the student will be able to draw free-body diagrams and solve for unknown forces using a vector approach.

Grading:

Homework, about 100 points

Midterm exams, 3 @ 50 or 75 points, about 200 points

Report 50 points

Final Exam 100 points

Total
450 points

All points hmwk/ test/ final etc count the same

A "C" grade indicates that a student has a marginal mastery of the objectives of the courses. The grades above a "C" are used for those students who have demonstrated some degree of superiority.
An "I" means the student was not able to complete the course by the end of the term, but has satisfactorily complete a sufficient portion of it and can be expected to finish without having to re-enroll in it. See page 30 of the University Catalog for more details.
A > 90 % on total points available.
B > 80 % on total points available.
C > 70 % on total points available.
D> 60 % on total points available.
F Less than 60%

ADA Statement
Students who have special needs or disabilities that may affect their ability to access information and or material presented in this course are encouraged to contact me or Robert Harden, ADA Compliance Officer, Director, ADA Affairs and Students Assistance on campus at 963-2171 for additional disability related educational accommodations.

Learner Objectives and Assessment Strategies

Learner Outcomes Assessment Strategies

1. Students will understand the relationships between metric and US units and have the ability to work in both arenas. A foundation for problem solving techniques is developed and students will be able to apply analytical skills in engineering statics, the study of forces on objects at rest.

Demonstrate these principles in classroom exercises, homework problems, examinations, and final report based on applying knowledge to solve analytical problems.

2. Demonstrate an understanding of vectors and be able to express and resolve vectors in two and three dimensions.

Demonstrate these principles in classroom exercises, homework problems and examinations based on applying knowledge to solve analytical problems.

3. Draw a free body diagram and solve for unknown forces in two and three dimensions for particle and rigid body systems. Demonstrate analytical skills by solving for unknown forces.

Demonstrate these principles in classroom exercises, homework problems, examinations, and final report based on applying knowledge to solve analytical problems.

4. Students will be able to perform vector operations of dot and cross product and use these principals to solve for unknown forces in three dimensions. Demonstrate the ability to use the concepts of moments and couples in qualitative and quantitative applications.

Demonstrate these principles in classroom exercises, homework problems and examinations based on applying knowledge to solve analytical problems.

5. Apply the method of joints and sections to determine the forces in a truss ’s members. Obtain the ability to determine joint reactions of simple frames or machines.

Demonstrate these principles in classroom exercises, homework problems and examinations based on applying knowledge to solve analytical problems.

6. Students will understand the concept of friction and analyze rigid bodies subjected to dry friction.

Demonstrate these principles in classroom exercises, homework problems and examinations based on applying knowledge to solve analytical problems.

7. Understand the concepts of center of gravity, center of mass, and the centroid. Be able to calculate the center of gravity and centroid of shapes.

Demonstrate these principles in classroom exercises, homework problems and examinations based on applying knowledge to solve analytical problems.

8. Be able to conceptualize fluid pressure and calculate hydrostatic forces.

Demonstrate these principles in classroom exercises, homework problems and examinations based on applying knowledge to solve analytical problems.

Homework:

1. Homework is an important part of this course. It is essential that students work the assigned problems to gain an understanding of the material. Generally problems will be assigned each Monday and will be due the following week on Tuesday or Wednesday (8 days later) at the beginning of the class. Please note the attached schedule is only a guide and subject to change. Homework in this class is difficult and time consuming, students should not wait until the night before an assignment is due to start an assignment.

2. No late homework will be accepted.

3. Solutions will be posted for your reference, immediately following the due date for the assignment.

4. All homework shall meet the following guidelines:

All work on engineering computation paper, in pencil. Use a straightedge. Print name, class, date and page number/total pages in the upper right hand corner of each page. Given: Simple statement of the problem with a sketch if necessary.

Required: Simple statement of what you are trying to find.

Solution: Neat solution to the problem in logical order. Include a free-body diagram if appropriate and underline your subanswer, box answer. 1 or at most 2 small problems a page. See enclosed example Report Assignment
Write a report applying your static analysis skills to the real world. Chose a problem that interests you and that you see in the world around us, the problem must be something real. Do not pick a homework problem or something so complex that it turns into a term project.

Abstract due 2/23. One short paragraph, no more than 2-4 sentences, , 12 CPI, Times New Roman. Explain what your report will be on, how you plan to do your study and what forces you are looking for (what do you wish to accomplish?).
Report, 4-5 pages, on a word processor, including figures FBD and figures may/ should be done by hand). The report must have at least one free body diagram, be sure to include them in the text of your report. 12 CPI, Times New Roman. Due when you briefly present your report to the class the last week of class. Report must include:

Introduction (back ground and objective)
Method used, how was the system modeled, what are you calculating
Discussion and Computations of your analysis
Conclusion, what did you learn, any surprises?

Topic is your choice, please pick something that interests you! This does not have to be extremely complicated. But some ideas are:

Weightlifting, what are the forces involved in certain lifts?
Take a picture with a digital camera ( I can help with this) of a structural support, cross bow, lintel, beam, truss, etc, perform an analysis
Develop the forces in a car U joint, strut, spring, or brace.
Develop the frictional forces between: a skateboarder and their board.
Show the forces in a crane, cables at Nick pavilion, ropes of a mountain climber.

d. Presentations are 5 pts the report is 45 pts, presentation are the last 3 days of class, for each day of class missed during presentations your report will be docked 5 points.

Statics
Winter 2000 MTWF 1-1:50 PM

Date	Subject	Reading	Homework
1/7	Intro, General Principles	Ch 1	1-10, 15, 19, due 1/12
1/10,11,12,14	Force Vectors	Ch 2	2-31, 47, 49, 53, 63, 82, 94, 110 due 1/19
1/18,19,21	Particle Equilibrium	Ch 3	2-110, 3-1, 17, 33, 47, 67 due 1/26
1/24,25,26,28	Force System Resultants Omit Sec 4.8 & 4.9	Ch 4	4-5, 27, 38, 58, 145 due ____
EXAM 1 (2/4)		Ch 1-3
1/31, 2/1,2,4	Rigid Body Equilibrium	Ch 5	5-1, 4, 5, 6, 9 due ____
2/7,8,9,11	Rigid Body Equilibrium	Ch 5	5-19, 27, 40, 43, 83 due ____
2/14,15,16,18	Structural Analysis	Ch 6.1-6.3	6-5, 8, 19, due _____
EXAM 2 (2/18)		Ch 4-5
2/21,22,23,25	Structural Analysis Frames & Machines	Ch 6.6	6-75, 78, 86, 95, 109 due ____ Report Abstract due 2/23
2/28,29 3/1, 3	Friction Centroids	Ch 8.1-8.2 9.1	8-1, 3, 4, 7,22 due ____
EXAM 3 (3/3)
3/6,	Fluid Pressure	9.6	9-58, 111 Due ____
3/7,8,10	Report Presentations		Mandatory attendance

3/13 Monday FINAL EXAM 12 noon to 2 PM

Homework, about	100 points
Midterm exams, 3 @ 50 or 75 points, about	200 points
Report	50 points
Final Exam	100 points
Total	450 points
All points hmwk/ test/ final etc count the same

Learner Outcomes	Assessment Strategies
1. Students will understand the relationships between metric and US units and have the ability to work in both arenas. A foundation for problem solving techniques is developed and students will be able to apply analytical skills in engineering statics, the study of forces on objects at rest.	Demonstrate these principles in classroom exercises, homework problems, examinations, and final report based on applying knowledge to solve analytical problems.
2. Demonstrate an understanding of vectors and be able to express and resolve vectors in two and three dimensions.	Demonstrate these principles in classroom exercises, homework problems and examinations based on applying knowledge to solve analytical problems.
3. Draw a free body diagram and solve for unknown forces in two and three dimensions for particle and rigid body systems. Demonstrate analytical skills by solving for unknown forces.	Demonstrate these principles in classroom exercises, homework problems, examinations, and final report based on applying knowledge to solve analytical problems.
4. Students will be able to perform vector operations of dot and cross product and use these principals to solve for unknown forces in three dimensions. Demonstrate the ability to use the concepts of moments and couples in qualitative and quantitative applications.	Demonstrate these principles in classroom exercises, homework problems and examinations based on applying knowledge to solve analytical problems.
5. Apply the method of joints and sections to determine the forces in a truss ’s members. Obtain the ability to determine joint reactions of simple frames or machines.	Demonstrate these principles in classroom exercises, homework problems and examinations based on applying knowledge to solve analytical problems.
6. Students will understand the concept of friction and analyze rigid bodies subjected to dry friction.	Demonstrate these principles in classroom exercises, homework problems and examinations based on applying knowledge to solve analytical problems.
7. Understand the concepts of center of gravity, center of mass, and the centroid. Be able to calculate the center of gravity and centroid of shapes.	Demonstrate these principles in classroom exercises, homework problems and examinations based on applying knowledge to solve analytical problems.
8. Be able to conceptualize fluid pressure and calculate hydrostatic forces.	Demonstrate these principles in classroom exercises, homework problems and examinations based on applying knowledge to solve analytical problems.