ENES 102

Statics

Fall 1998

Sections 0201, 0202, 0203
Lecture 11:00-11:50 Tuesday and Thursday, ARM 0135
Discussion: 1:00-1:50 Tuesday, Wednesday, or Thursday

Instructor: Dr. Peter Sandborn
Office: ENG 3127
Phone: (301) 405-3167
Email: sandborn@eng.umd.edu
Office Hours: 3 – 5 pm, Monday and Thursday

Course Description:
ENES 102 is a basic engineering science course in Statics required for several engineering curricula. Statics deals with the equilibrium of rigid bodies, that is, bodies that are at rest or moving at a constant velocity. Statics is applicable to the study of structures and machines that are stationary, and allows the determination of various loads and moments internal and external to these systems.

Learning Outcomes:
In this course the student will develop and/or refine the following areas of knowledge:

• Engineering problem formulation, organization and solution methodologies
• Mechanical and gravitational forces, and moments
• Vector analysis applied to real mechanics problems
• Trigonometry applied to real mechanics problems
• Integral calculus applied to distributed loads and centroids
• Newton’s laws of motion applied to real mechanics problems:
  • Static equilibrium of a body in three dimensions
  • Truss loadings
  • Internal forces
• Frictional forces and gravitational forces
• Center of gravity/mass and centroids.

Outcome Measurement and Assessment:
Student progress in achieving the desired outcomes for this course will be monitored and measured through the use of the following:

• Completion of assigned homework sets designed to build a mastery of the basic concepts of the course, and provide engineering problem solving practice.
• Regular examinations designed to demonstrate mastery of basic concepts of the course.
• A comprehensive final exam designed to demonstrate the student’s ability to both solve specific mechanics problems and to integrate the many topics covered in the course in the formulation and solution of more complex, multidisciplinary engineering mechanics problems.
• By creating and maintaining a portfolio containing a representative sample of student work in this course.

Course Outcomes:
This course lays the technical and problem solving basis for:

• ENES 220 – Mechanics of materials
• ENES 221 – Dynamics.

Professional Outcome:
The most measurable long-term outcome from this course is the student’s resulting ability to identify, formulate and organize engineering problems in a conceptual form as well as in terms of mathematical and physical models. Even if the student is not directly involved with engineering mechanics in their professional work after graduation, they will still benefit from the problem solving groundwork laid by this course.

Text: Engineering Mechanics: Statics, 8^th Ed. by R. C. Hibbler, Prentice Hall, 1998.

Class Examination Dates:

• Midterm 1 – October 6, 1998
• Midterm 2 – November 10, 1998
• Final Exam – Tuesday December 15, 1998, 8 – 10 am 

Grading Policy:

• 30% Homework/class participation (attendance will be taken in lecture and discussion)
• 20% Midterm 1
• 20% Midterm 2
• 30% Final Exam

Homework:
Homework assignments will be collected at the 1 hour lecture on Tuesdays. The homework will be marked late if received after the first 10 minutes of class. Late homework will be marked 10% off for each day it is late, and no credit will be given once the solutions are posted.

Homework Format:

• Homework must be on engineering paper (any color)
• Use one side only
• Pen or pencil
• Staple pages together
• All pages numbered at the top (e.g., 1/3 means page 1 out of 3)
• Student name must appear at the top of every page
• Box your answers
• Answers must include units (if applicable)
• Neatness counts – if I can’t read it, I can’t grade it
• Show all your work (no work, no points).

Make-Up Exams:
Make-up exams are only allowed for justifiable reasons if notified in advance (i.e., University approved religious observance) or with a documented reason for an unnotified emergency absence (i.e., family or medical emergency).

Syllabus and "Expected" Homework Assignments (Problem sets may be modified during the semester)

Date	Lecture	Discussion	Homework
Sept 1	Introduction	Introduction	1-4, 1-9, 1-12,
Sept 3	Chapter 1	Chapter 1	1-13, 1-16, 1-20 (due Sept 8)
Sept 8	Chapter 2	Chapt 1 HW	2-10, 2-22, 2-47, 2-61, 2.69, 2-93,
Sept 10	Chapter 2		2-110, 2-121, 2-128 (due Sept 15)
Sept 15	Chapter 3	Chapt 2 HW	3-3, 3-7, 3-19, 3-28,
Sept 17	Chapter 3		3-45, 3-47. 3-57, 3-64 (due Sept 22)
Sept 22	Chapter 4	Chapt 3 HW	4-5, 4-16, 4-21, 4-41, 4-67, 4-86
Sept 24	Chapter 4		4-119, 4-134, 4-143 (due Sept 29)
Sept 29	Chapter 4	Chapt 4 HW	5-4, 5-12, 5-19, 5-25, 5-43,
Oct 1	Chapter 5		5-67, 5-75, 5-83 (due Oct 20)
Oct 6	Midterm I	Review Midterm
Oct 8	Chapter 5
Oct 13	Chapter 5		6-2, 6-5, 6-9, 6-13, 6-22 (due Oct 27)
Oct 15	Chapter 6
Oct 20	Chapter 6	Chapt 5 HW
Oct 22	Chapter 6
Oct 27	Chapter 6	Chapt 6 HW	6-32, 6-41, 6-46, 6-70, 6-93, 6-108 (due Nov 3)
Oct 29	Chapter 7
Nov 3	Chapter 7	Chapt 6 HW
Nov 5	Chapter 7
Nov 10	Midterm II	Review Midterm	7-6, 7-13, 7-17, 7-41, 7-49,
Nov 12	Chapter 8		7-59, 7-82 (due Nov 17)
Nov 17	Chapter 8	Chapt 7 HW	8-3, 8-18, 8-23, 8-37, 8-39, 8-54 (due Dec 1)
Nov 19	Chapter 8
Nov 24	Chapter 9
Nov 26	Thanksgiving
Dec 1	Chapter 9	Chapt 8 HW	9-2, 9-19, 9-33, 9-34, 9-77, 9-86, 10-2, 10-9, 10-10, 10-42, 10-51 (due Dec 8)
Dec 3	Chapter 10
Dec 8	Course Review	Chapt 9 & 10 HW
Dec 10	Course Review
Dec 15	Final Exam (8-10am)