TAM 251: Introductory Solid Mechanics

General Info

Grades Formal Assessment Contact Info
Website Grading Lectures Office hours
Course description Final grades i-Clickers Online forum
Prerequisites   Quizzes  
Reference text   Discussions  
    Online homework  
    Final exams  
       

 

Website: The official class website is http://courses.engr.illinois.edu/tam251/

Description: Relationship between internal stresses and deformations produced by external forces acting on deformable bodies, and design principles based on mechanics of solids: normal stresses, shear stresses, and deformations produced by tensile, compressive, torsional, and bending loading of members; beam deflections; elastic energy and impact; multi-dimensional stress states; buckling of columns.

Big Idea: Solid materials deform and break. The extrinsic relation of force and displacement is governed by intrinsic material measures of stress and strain. The challenge is to connect the extrinsic to the intrinsic.

Prerequisites: TAM 210 or TAM 211.

Reference texts:

  • R. C. Hibbeler, Mechanics of Materials, 9th edition, Pearson, Prentice Hall, 2014.
  • F. B. Beer, E. R. Johnston, J. T. DeWolf, and D. F. Mazurek, Mechanics of Materials, 7th edition, McGraw-Hill, 2015.
  • R. R. Craig, Mechanics of Materials, 3rd edition, John Wiley & Sons, 2011.

There is no required textbook for this class. However, readings will be assigned from Mechanics of Materials by Hibbeler R.C. (9th edition, equivalent to the "custom" paperback edition in the Illini Union Bookstore) - see Schedule page. The textbook numbered problems will not be used for assigned homework. Prior editions of the textbook, as well as other similar textbooks, are adequate for the reading content. However, note that the instructors cannot and will not guarantee which prior editions or textbooks have comparable content and organization. If a student chooses to read prior version or a different textbook, then it is the student's responsibility to verify the content.

Grading: The total score for the course is computed with the following weights:

Computer-based Quizzes (PraireLearn)         35%

In-lecture Quizzes                10%

Online Homework (PraireLearn)       15%

Discussion worksheets                    8%

In-lecture iClickers                           2%

Final Exam                                      30%

Final grades: The total score s corresponds to final grades as follows.

97% ≤ s < 100% A+ 92% ≤ s < 97%  A 89% ≤ s < 92%  A-
86% ≤ s < 89% B+ 82% ≤ s < 86%  B 79% ≤ s < 82%  B-
76% ≤ s < 79% C+ 72% ≤ s < 76%  C 69% ≤ s < 72%  C-
66% ≤ s < 69% D+ 59% ≤ s < 66%  D 55% ≤ s < 59%  D-
s < 55%

 

Lectures: Prompt and regular attendance at lectures is required to obtain credit for iClicker content.

iClickers: Short quizzes are conducted during lectures using iClickers (50% participation, 50% correctness). An iClicker remote can be purchased from any of the bookstores, and must be registered on Compass, under the tab "Register i>clicker". You need to register your iClicker by the end of Week 2, when the iClicker roster will be synced for the last time. The first iClicker use for credit will take place in Week 2 of the semester. Your lowest three scores will be dropped. These drop should be reserved for unexpected occurrences such as sickness or a family emergency.

In-lecture quizzes: You will have two 50-min quizzes during the semester (check the dates on the schedule page). Each quiz will have two free-response questions using the symbolic format often used during lecture. They are designed to assess your problem solving skills on course material.

Computer-based quizzes: You will have 7 total online quizzes using the PrairieLearn system. You will not be allowed to use notes, textbooks or electronic devices such as laptops or cell phones. Solutions will not be posted. All quizzes will be held in the Computer-Based Testing Facility (CBTF). Make sure to check the CBTF website to get information about the facility and what you need to do to sign-up for your quiz.

Discussion sections: Prompt and regular attendance at your discussion section is required. You must attend only the discussion section in which you are enrolled. You will not receive a grade for the worksheet if you attend the wrong discussion section.

The discussion section schedule is listed below.

  Tuesday Wednesday
11-12   ADF
Anthony, Nick, Jake
12-1   ADG
Liz, Jake, James
1-2 ADA
John, Justin, Katie
ADH
Ganesh, James, Justin
2-3 ADB
John, Gulai, Katie
 
3-4 ADC
Anthony, Jeff, Gulai
 
4-5 ADD
Anthony, Jeff, Nick
 

Online homeworks: Weekly online homeworks will be assigned via PrairieLearn. Each assignment is due at 11:59pm on the assigned due date. Due dates are available inside PrairieLearn.

Office hours:

Prof. Silva office hours: Wednesdays 1:00-2:00pm, MEB 248

Teaching and Course Assistants office hours are held in 429 Grainger, according to the schedule below. Office hours start in Week 2 of the semester.

  Monday Tuesday Wednesday Thursday Friday
1-2     Prof. Silva
(248 MEB)
   
2-3          
3-4          
4-5 James +
John
  Anthony +
Justin
Jake Katie +
Ganesh
5-6 James +
John
Anthony Jeff Jake Katie +
Ganesh
6-7   Gulai +
Anthony
Jeff +
Nick
Gulai +
Liz
Katie
7-8   Gulai +
Ganesh
Nick+
Justin
Gulai +
Liz
 

 

Online forum (Piazza): This class uses Piazza for ALL communications between the instructor, TAs, CAs, and students. Students should not communicate with instructors via email. This is so we can ensure a faster response and keep everyone informed about what's going on.

Students are encouraged to post public messages on Piazza ("Post to Entire Class"). If you like, you can post anonymously, but we encourage everyone to use their name because it makes a friendlier and more welcoming environment. We will never judge anyone for asking anything on Piazza, and you will see professors, TAs, and CAs making mistakes and saying stupid things as well!

You can use the private feature on Piazza by posting a message visible only to the Instructors. In this, you must type "Instructors", instead of sending a message to a specific TA or instructor. Again, this helps to ensure that you get a prompt response.

TAs and CAs are scheduled to be checking Piazza on the following days:

Sunday Monday Tuesday Wednesday Thursday Friday Saturday
Jake
Anthony
James
Liz
Jeff
Ganesh
Gulai
Anthony
Justin
John
Nick
Anthony
Katie
Ganesh

The use of Piazza should not replace the in-person Office Hours time, since some questions cannot be fully addressed via an online forum.

Final Exam: Friday, December 15, 7:00-10:00 p.m.

Final Exam Conflict: The final exam is set to follow the non-combined final exam schedule. Therefore, we are not offering an official conflict final exam.

If you believe you have a valid reason to request a conflict exam, please follow the steps below:

  • Check if you indeed have a VALID reason according to the student code.
  • Request your conflict final exam using Piazza (private message to Instructors).
  • In the summary line, write "Final exam conflict request"
  • Indicate clearly the reasons of your request and attach any relevant documents.