Lee L. Lowery, Jr.

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STATICS – CVEN 221 Section 502

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The Art of Making Things Sit Still

Course Syllabus – Fall 2011
TR 2:20 pm – 4:10pm in CVEN Room 110

What’s wrong with this picture? (Rube Goldberg was not statics savvy)

What really happens:  Weight of cannon ball on unbalanced lever rotates lever, dropping cannon ball on ground hog, killing it instantly.  Golfer unfortunately also killed when entire mechanism rotates clockwise, impacting right end on ground, dynamically transmitting reacting force to left end of mechanism, snapping golfer’s neck.  Adding insult to injury, impact bends gun barrel such that tee projectile wounds local video reporter on scene.  Reporter taken to hospital, reports animal rights violation to ASPCA who call Animal Cops.  Video of crime goes viral on YouTube.  Riots break out.  Golfing banned.

The gentleman shown here made a D in my statics class last semester.

Please note that although your grade in CVEN 221 will be highly influenced by your ability to do everything covered in the class, you MUST be able to find forces in trusses by the methods of joints and sections, you MUST be able to calculate reactions on beams, you MUST be able to draw shear and moment diagrams, and you MUST be able to find the centroid and moment of inertia of plane sections, or you will not pass. These things are critical and your professors teaching later courses will flunk you and pillory me if you go into their class unable to perform to this minimum level of competency.

Help for this course is available from the people shown below, at the office hours listed only.

Office: CE/TTI Building, Room 705C
Phone: 979-845-4395 (Office), 979-775-5401 (Home)
e-mail: Lowery@tamu.edu
Office Hours:

NOTE: Office hours listed below are suspended on the day before a major exam, giving me time to make it out.  Do not wait until the day before a major exam for help, unless the tutor has office hours on that day.

I try and keep my calendar up to date, and to add unexpected meetings as they arise. However, it will always be in your best interest to call before you come by, unless you are already in the area.

Half of my time is spent teaching CVEN 305, CVEN 221 and ENGR 485. During the remaining hours I am a departmental adviser and do multi-media teaching research and am unavailable for tutoring. Please plan on assistance either during my office hours, or see a teaching associate during their office hours.

 

Teaching Associate and Grader:   Joel Petersen-Gauthier

  Office: Civil Engineering Room 010
Office Desk: Has “221” sign over desk
Office hours:

  • MWF 1:00 p.m. to 2:00 p.m.

  • TR      9:00 a.m. to 12:00 p.m.

Note that these hours are tentative.  If he has to step away he will leave a sign on his desk saying:

See Lowery.  I’m his backup.  L^3

Teaching Associate:   Madhu Karthik

 Office: Civil Engineering Room 010
Office Desk: Has “221” sign over desk
Office hours:

  • TWR      11:00 a.m. to 2:00 p.m.

Note that these hours are tentative.  If he has to step away he will leave a sign on his desk saying:

See Lowery.  I’m his backup.  L^3

Textbook: The textbook is excellent – one of the best:

  • Engineering Mechanics: Statics by R. C. Hibbeler, Pearson Publishing (Prentice Hall?), 12th Edition.  or
  • Engineering Mechanics: Statics and Dynamics

Looking for a used textbook? ORDER EARLY!  Here is where a text I bought has been.  Around the world in 30 days.

The ISBN Number is 0136077900 or 9780136077909. IF YOU ARE TAKING STATICS ONLY.

If you intend to take Statics and Dynamics in the CE Department, you might consider the combined Statics & Dynamics version of the text which will save you about $100 over buying the texts separately.  This text ISBN Number is 0138149291 or 9780138149291.  However, be sure to see if the dynamics class still uses the Hibbeler text.  It may change in the future.

You can also find “Buy and return” and eBook sales.  eBooks are also acceptable.

Bookstore or Internet?

Catalog Description:

Application of the fundamental principles of Newtonian mechanics to the statics of particles and the equilibrium of trusses, frames, beams and other rigid bodies. Forces; moments; trusses; beams; free body diagrams; friction; equilibrium; first and second moments of lines, areas, and volumes; centers of pressure, mass, and gravity; and moments of inertia. Vector algebra and calculus are used. Prerequisites: Admission to a major sequence in Civil Engineering; MATH 251 or 253, or registration therein; PHYS 218.

Course Objectives:

  • To introduce the student to statics of particles and rigid bodies, equilibrium, forces and force components, moments, shear and moment diagrams, moments of inertia.

Learning Outcomes

  • (a) Ability to apply knowledge of basic mathematics, science, and engineering.

Course Prerequisites:

To take CVEN 221, you must have been admitted to upper level in Civil Engineering, and have received a passing grade (no D’s, F’s or I’s) in PHYS 218, and have completed or be registered in MATH 251 or MATH 253.

Course Assessment:

  • Graded major exams (Quiz A, Quiz B, Final Exam = 3 @ 30% each)
  • Graded homework assignments, Readiness Assessment Tests (RATs), Class Participation, Attendance, Projects = 10%

Syllabus Information – Please Read:

Resources available to the student:

The correct time (to the nanosecond)

Topics Covered:

Date Class No.

Material in this column will be covered from the Riley text.

NOTE! Read all hyperlinked syllabus material listed at the bottom of this page.

Note that the page coverage listed below is approximate, depending on our ability to cover the materials.

Homework Assignments

Each problem assigned is worth 10 points, unless otherwise noted. Problem hints, if any, and other relevant information are hyperlinked. All homework problems are assigned on the day listed and due as shown below.

NOTE!
There are “Fundamental” and “Regular” problems in this book.  For example, on page 27 you will find a Fundamental Problem 2-1, and on page 28 you will find a Regular Problem 2-1.  Be careful working the required problems below.
Tue
8/30		 1 General Principles
Reading assignment
Sections 1.1-1.6Mechanics, Fundamental Concepts, Units of Measurement, The International System of Units, Numerical Calculations, General Procedure for Analysis		 MANDATORY!
Click here to begin course.Homework Problems
Note that there are two types of problems – Fundamental problems which have complete solutions and
Regular problems.

No, sorry, you get zero credit for working the wrong problem.  None at all.

Chapter 1, Special Problems
Not Required
Thu
9/1		 2 Concurrent Force Systems
Force Vectors
Reading assignment
Sections 2.1-2.8Scalars and Vectors, Vector Operations, Vector Addition of Forces, Addition of a System of Coplanar Forces, Cartesian Vectors, Addition of Cartesian Vectors, Position Vectors, Force Vector Directed Along a Line		 Homework Problems
Chapter 2 Regular Problems
4, 17, 30, 32, 38, 75, 80, 90, 96
Due Class 4
Tue
9/6		 3 Equilibrium of a particle
Reading assignment
Sections  3.1-3.3
Condition for the Equilibrium of a Particle, The Free-Body Diagram, Coplanar Force Systems		 Homework Problems
Chapter 3 Regular Problems
2, 4, 6, 9, 13, 15, 17, 23
Due Class 5
Thu
9/8		 4 Three-dimensional force systems
Reading assignment
Section 3.4
Three-Dimensional Force Systems		 Homework Problems
Chapter 3 Regular Problems
45, 47, 49, 55, 60, 63
Due Class 6
Tue
9/13		 5 Force system resultants
Reading assignment
Sections 4.1-4.4
Moment of a Force-Scalar Formulation, Cross Product, Moment of a Force-Vector Formulation, Principle of Moments
Help on cross products 1
Help on cross products 2
Help on cross product and torque		 Homework Problems
Chapter 4 Fundamental Problems
1, 4, 7, 11, 12 and
Chapter 4 Regular Problems
5, 6, 31, 43, 46
Due Class 7
Thu
9/15		 6 Force system resultants
Moment of force about specific axis
Reading assignment
Sections 4.5-4.6
Moment of a Force about a Specified Axis, Moment of a Couple
Force Components
Matrix Operations
Help on dot product 1		 Homework Problems
Chapter 4 Fundamental Problems
14, 17, 18, 19, 24 and
Chapter 4 Regular Problems
56, 69, 73, 85
Due Class 8
Tue
9/20		 7 Force system resultants
Simplification of forces and couples
Reading assignment
Sections 4.7-4.9
Simplification of a Force and Couple System, Further Simplification of a Force and Couple System, Reduction of a Simple Distributed Loading		 Homework Problems
Chapter 4 Fundamental Problems
25, 29, 31, 35, 37, 38, 42
Chapter 4 Regular Problems
144, 146
Due Class 9
Thu
9/22		 8 Centroids and Center of Gravity
Reading assignment
Sections 9.1-9.2
Center of Gravity, Center of Mass, and the Centroid of a Body, Composite Bodies		 Homework Problems
Chapter 9 Fundamental Problems
1, 2, 5, 7, 8, 11
Chapter 9 Regular Problems
9, 15, 55, 60
Due Class 10
Tue
9/27		 9 Centroids and Center of Gravity
Reading assignment
Sections 9.3-9.5
Theorems of Pappus and Guldinus, Resultant of a General Distributed Loading, Fluid Pressure		 Homework Problems
Chapter 9 Fundamental Problems
13, 15, 17, 19, 21
Chapter 9 Regular Problems
88, 90, 91, 116
Due Class 11
Thu
9/29		 10 Moments of inertia
Reading assignment
Sections 10.1-10.3
Definition of Moments of Inertia for Areas, Parallel-Axis Theorem for an Area, Radius of Gyration of an Area		 Homework Problems
Chapter 10 Fundamental Problems
1, 2, 3, 4
Chapter 10 Regular Problems
3, 4, 5, 6
Due Class 12
Tue
10/4		 11 Moments of inertia
Reading assignment
Section 10.4
Moments of Inertia for Composite Areas		 Homework Problems
Chapter 10 Fundamental Problems
5, 6, 7, 8
Chapter 10 Regular Problems
33, 34, 37, 38, 48
Due Class 13
Thu
10/6		 12 Equilibrium of Rigid Bodies
Reading assignment
Sections 5.1-5.2Conditions for Rigid-Body Equilibrium, Free-Body Diagrams		 Homework Problems
Chapter 5 Regular Problems
1, 2, 3, 4, 5, 6, 7, 8, 9, 10
Due Class 14 (Yep, Class 14)
Tue
10/11		 13 Equilibrium of Rigid Bodies
Reading assignment
Sections 5.3-5.4
Equations of Equilibrium, Two- and Three-Force Members		 Homework Problems
Chapter 5 Fundamental Problems
1, 2, 3, 4
Chapter 5 Regular Problems
19, 21, 27
Due Class 15
Thu
10/13		 14 Equilibrium in Three Dimensions
Reading assignment
Section 5.5
Covered in about the first half of class:
Free-Body DiagramsQuiz A – Held in CE 110
around the first or last half of class.
Covers sections 1.1 through 4.9 and 9.1 through 9.5 (basically, classes 1 through 9 listed above.)
You may use a formula sheet that you develop. One 8.5 in. x 11 in. sheet of paper, one side only. Must be original, handwritten, no photocopies or electronic reductions. Formulas only. No examples or procedures. Submit this sheet with your quiz. Formula sheets that do not meet these requirements will result in a penalty to your exam grade.		 Homework Problems
Chapter 5 Regular Problems
35, 42, 59
Due Class 16The only material permitted on Quiz A will be one 8-1/2×11 sheet of formulas, one side only, no example problems. The centroid table will be included with the exam if needed. You need not bring it.

You should also bring a copy of the Fundamentals of Engineering Reference Manual, Statics section only.  Click here for a copy

Your homework assigned a week ago is still due today.  However I don’t want to delay the quiz, so hand it in with your next set.  That doesn’t mean it isn’t due, only that you are going to hand in two sets next class.
Tue
10/18		 15 Equations of Equilibrium
Reading assignment
Sections 5.6		 Homework Problems
Chapter 5 Fundamental Problems
7, 9, 12
Chapter 5 Regular Problems
71, 76
Due Class 17
Thu
10/20		 16 Simple trusses, Method of joints, Zero-force members
Reading assignment
Sections 6.1-6.3		 Homework Problems
Chapter 6 Fundamental Problems
1, 2, 3, 5
Chapter 6 Regular Problems
7, 9, 15, 25, 30
Due Class 18
Tue
10/25		 17 Trusses – Method of Sections
Reading assignment
Section 6.4		 Homework Problems
Chapter 6 Fundamental Problems
7, 9, 11, 12
Chapter 6 Regular Problems
31, 35, 37, 43
Due Class 19
Thu
10/27		 18 Space trusses
Reading assignment
Section 6.5		 Homework Problems
Chapter 6  Regular Problems
55, 57, 59, 64
Due class 20
Tue
11/1		 19 Frames, and Machines
Reading assignment
Section 6.6		 Homework Problems
Chapter 6  Fundamental Problems
13, 16, 18
Chapter 6 Regular Problems
67, 71, 74, 76, 78, 84
Due class 21
(Yep, Class 21)
Thu
11/3		 20 Internal member forces
Reading assignment
Section 7.1		 Homework Problems
Chapter 7  Fundamental Problems
F7 – 1, 3, 4, 5, 6
Chapter 7 Regular Problems
5, 12, 14, 22, 37
Due class 22
Tue
11/8		 21 Shear and Bending Moment Diagrams Reading assignment
Section 7.2Detailed procedure for drawing shear and moment diagrams

Training/Practice with shear and moment diagrams

Covered in about the first half of class: Shear and Moment Equations and
Diagrams

Quiz B – Held in CE 110
around the first or last half of class.
Covers sections 1.1-6.3 and 9.1-10.4 (basically classes 1 through 16 listed above) with emphasis on material since Quiz A

You may use a formula sheet that you develop. One 8.5 in. x 11 in. sheet of paper, written on both sides. Must be original, handwritten, no photocopies or electronic reductions. Formulas only. No examples or procedures. Submit this sheet with your quiz. Formula sheets that do not meet these requirements will result in a penalty to your exam grade.

 Homework Problems
Chapter 7 Fundamental Problems
8, 11, 12
Chapter 7 Regular Problems
42, 43, 46, 49, 51, 53, 61
Due class 23The only material permitted on Quiz B will be one 8-1/2×11 sheet of formulas, both sides, no example problems. The centroid table from the back page of the book will be included with the exam if needed. You need not bring it.

You should also bring a copy of the Fundamentals of Engineering Reference Manual, Statics section only.  Click here for a copy

Your homework assigned a week ago is still due today.  However I don’t want to delay the quiz, so hand it in with your next set.  That doesn’t mean it isn’t due, only that you are going to hand in two sets next class.
Thu
11/10		 22 Internal Forces in Structural Members
Reading assignment
Section 7.2
Shear and Moment Equations and
DiagramsTraining/Practice with shear and moment diagrams		 Homework Problems
Chapter 7 Fundamental Problems
13, 14, 15, 18
Chapter 7 Regular Problems
68, 73, 74, 78, 84, 87
Due class 24
Tue
11/15		 23 Internal Forces in Structural Members
Reading assignment
Section 7.3
Relations between Distributed Load, Shear, and Moment		 Homework Problem
Chapter 7 Regular Problems
65, 66, 70, 72
Due class 25
Thu
11/17		 24 Internal Forces in Structural Members
Reading assignment
Section 7.3
Relations between Distributed Load, Shear, and Moment		 Homework Problems
Chapter 7 Regular Problems
75, 76, 79, 82
Due class 26
Tue
11/22		 25 Cables
Reading assignment
Sections 7.4		 Homework Problems
Chapter 7 Regular Problems
89, 90, 91, 93, 94, 96, 98
Due class 27
Thu
11/24		 Thanksgiving Holiday
Tue
11/29		 26 Dry Friction
Reading assignment
Section 8.1-8.2		 Homework Problems
Chapter 8 Fundamental Problems
1, 2, 3, 4, 5
Chapter 8 Regular Problems
1, 3, 4, 6, 8
Due class 28
Thu
12/1		 27 Dry Friction, Wedges
Sections 8.2-8.3		 Homework Problems
Chapter 8 Regular Problems
9, 10, 17, 18, 25, 27, 65, 66, 70
Due class 28 (yep, class 28)
Thu
12/6		 28 Review for final exam

Fully understand what we covered today and be prepared to work similar problems on the Final Exam.

Pick up any homework you missed at my office.

Final Exam covers everything in the course, with emphasis on the last material over which you have not yet been examined.

Held on Monday, Dec 12th, 2011 from 1:00 p.m. to 3:00 p.m. in room 110

CHECK THIS DATE AND TIME FOR ACCURACY HERE:

University Final Exam Schedules

The final exam will be closed book. It will cover everything in the course with emphasis on the material covered since the last major exam. The distribution of material is planned to be approximately: 20% over Quiz A materials, 20% Quiz B, and 60% over the material covered since Quiz B.

You are permitted to bring an 8-1/2″x11″ sheet of formulas, both sides, no example problems.

You should also bring a copy of the Fundamentals of Engineering Reference Manual, Statics section only.  Click here for a copy

Please note that to pass this class you MUST be able to solve for reactions and draw shear and moment diagrams, find forces in truss members by method of joints and method of sections, determine the location of a centroid for a composite shape and the moment of inertia about that centroid. These are minimum competencies without which you MUST find a better prof and retake this class.

 


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