Homework and Reading guide

ME 014, Spring 2009

Homework guidelines: Homework is due at midnight Fri. in the box outside 122 Votey Building. On every homework assignment please do the things listed below. After a few weeks of getting used to these you will have to follow all of them to get any credit on homework.

a) On the top right corner neatly print the following, making appropriate substitutions as appropriate:
    Sally Rogers
     HW 2 Due Feb. 4, 2006
     ME 014
b) STAPLE your homework in the top left corner.
c) Use only the front side of each sheet.
d) You are encouraged to work with others on homework; you will gain more by explaining to and learning from other students. At the top clearly acknowledge all help you got from TAs, faculty, students, or ANY other source (but for lecture, text, and office hours only). Examples could be "Mary Jones pointed out to me that I needed to draw the second FBD in problem 2." or "Nadia Chow showed me how to do problem 3 from start to finish." or "I basically copied this solution from a Tau Beta Sigma frat file." etc. If your instructor or grader thinks you are taking too much from other sources he/she will tell you. In the mean time, don't violate academic integrity rules and be unclear about what of your presentation you worked out on your own.
e) Every use of force, moment, momentum, or angular momentum balance must be associated with a clear correct free body diagram.
f) Your vector notation must be clear and correct.
g) Every line of every calculation must be dimensionally correct. (Carry your units.)
h) Your work should be laid out neatly enough to read. Part of your job as an engineer is not just to get the right answer, but to communicate its justification clearly. So that is part of your job on the homework as well.
i) Write equations in symbolic form before plugging in numerical values and solving. It makes it easier for you and us to check your work. This is also a much desired practice for your exam solutions.

Homework grading and solutions: We will grade carefully two of the homework problems each week counting for 50% of the total points; the rest will be checked for an honest attempt to complete them and count for the remaining 50%. The carefully graded problems will not be announced in advance. We will penalize late homework and will not accept homework after the solutions are posted. Solutions will be posted at the course web site on the Monday after the homework is due.

Homework assignments:

NOTE:
(1) Homework problems are at end of the chapters.
(2) You DO NOT have to do any part of any problem that asks for a computer solution or a computer plot.

Homework 1, due Fri., Jan. 23.
Topic: Intro and review of vectors, free body diagrams, and statics; Concept of Stress
Reading guide:Chapter 1 (1.1-1.13)
Problems: 0) Please read the homework guidelines at the top of this WWW page.  Write "I have read and I understand the homework guidelines." 1) 1.4   2) 1.5  3) 1.10 4) 1.11 5) 1.15 6) 1.18

Homework 2, due Fri., Jan 30.
Topic: Stress and Strain - Axial Loading
Reading guide: Chapter 2 (2.1-2.3, 2.5, 2.8)
Problems: 1) 1.33  2) 1.39 3) 2.6 4) 2.14 5) 2.28 6) 2.45 (x.c.)
Solutions
Homework 3, due Mon., Feb. 09.
Topic: Stress and Strain - Axial Loading
Reading guide: Chapter 2 (2.12, 2.14-2.15)  
Problems: 1) 2.37 2) 2.47   3) 2.63  4)2.69  5) 2.57 (x.c.) 6) 2.74(x.c.) 7) 2.73(x.c.) 8) 2.96 (x.c.)
Homework 4, due Wed., Feb. 18.
Topic: Torsion
Reading guide: Chapter 3 (3.1-3.5)
Problems: 1) 2.77   2) 3.3  3) 3.16  4) 3.21 5) 3.38 6) 3.154   7) 3.53 (x.c.)
Homework 5, due Fri., March 06
Topic: Pure Bending
Reading guide: Chapter 4 (4.1-4.5)
Problems: 1) 4.1 2) 4.18  3) 4.21  4) 4.26  5) 4.27.
Homework 6, Due Fri. March 20.
Topic: Analysis and Design of Beams for Bending
Reading guide: Chapter 5 (5.1-5.0)
Problems: 1) 5.1,   2) 5.2   3) 5.15   4) 5.34    5) 5.37  6) 5.29(x.c.)
Homework 7, due Fri., March 27.
Topic: Shearing Stress in Beams
Reading guide: Chapter 6 (6.1-6.6)
Problems: 1) 6.3   2) 6.12   3) 6.19   4) 6.25-6.28
Homework 8, due Mon., April 13
Topic: Deflection of Beams
Reading guide: Chapter 9 (9.1-9.4, 9.7, 9.9)
Problems: 1) 9.4   2) 9.8  3) 9.17  4) 9.20  5) 9.66
Homework 9, due Wed., Apr. 22.
Topic: Columns
Reading guide: Chapter 10 (10.1-10.4)
Problems: 1) 10.1 2) 10.11 3) 10.20 4)10.27 (1, 2, 3 only)
Homework 10, due Wed., April 29.
Topic: Transformation of Stress; principal stresses under a given loading.
Reading guide: Chapter 7 (7.1-7.6); Chapter 8 (8.1-8.2, 8.4)
Problems: 1) 7.1  2) 7.5  3) 7.9  4) 7.23 (see sample problem 7.1)  5) 8.31 6) 8.41.
email to Mike Coleman <mcoleman@cems.uvm.edu>