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:

Online Quizzes (Praire Learn)         34%

In-lecture Quizzes                10%

Online Homework (Praire Learn)       15%

Discussion worksheets                    8%

In-lecture iClickers                           3%

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: These quizzes are designed to assess your problem solving skills on course material. The alloted time to complete the quiz will be announced in class the week prior to the quiz and it will vary between 20 to 40 minutes. You will not be allowed to use notes or textbooks. Solutions will not be posted. You will have a total of 6 in-lecture quizzes, according to the schedule.

Online 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) .

Instructions on how to sign-up for your quiz at the CBTF:

  1. Firefox and Chrome are both supported web browsers. Other browsers may not be supported yet.
  2. Click "Add a course" and then click "TAM 210/211: Statics" Click on "Quiz #1" (click anywhere in the large red box)
  3. Click on the green button for the time-slot when you want to take Quiz #1
  4. After you have signed up for a quiz, you can cancel or change your reservation by clicking on the green reservation area. You can make changes to your reservation up to 1 hour before your scheduled quiz time.
  5. DRES students requiring extra time should sign up for a time-slot that has enough time remaining after it. For example, if you need 1.5X or 2X time, then do not sign up for the last time-slot of the day, but any earlier time-slot is ok. If you need 3X time then do not sign up for either of the last two time-slots of the day, but any of the early time-slots are ok. When you arrive at the CBTF, inform the proctor that you are a DRES student and you will be accommodated in a separate, reduced-distraction room.

 

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
Lydia, Luis, Gulai
12-1   ADG
Chris, Gulai, Tony
1-2 ADA
Yu, Luis, Justin
ADH
Chris, Justin, Tony
2-3 ADB
Michael, Coco, Kundayi
 
3-4 ADC
Michael, Coco, Kundayi
 
4-5 ADD
Lydia, Dihan, Nick
 

Online homeworks: Weekly online homeworks will be assigned via PrairieLearn. Each assignment is due at 11:59pm on the assigned due date. Please consult the schedule for a list of homework assignments and due dates.

Final Exam: The final exams are currently set to follow the non-combined final exam schedule. December 16, 8:00am - 11:00am

Office hours:

Prof. Hu office hours: Fridays 2:00-3:00pm, Room 2138 MEL

Prof. Silva office hours: Mondays 3:00-4:50pm, Room 336 MEB

Teaching and Course Assistants office hours are held mostly in 429 Grainger, according to the schedule below. Office hours scheduled at a different location (Monday office hours and instructors office hours) have the room number indicated inside parenthesis. Office hours start in Week 2 of the semester.

  Monday Tuesday Wednesday Thursday Friday
1-2          
2-3         Hu (2138 MEL)
3-4 Silva (336 MEB)       Dihan
 
4-5 Silva (336 MEB)  Chris Coco Michael Dihan
 
5-6   Chris Coco Justin
Lydia
Kundayi
Yu
6-7 Gulai (252 MEB) Michael Nick Justin
Lydia
Kundayi
Yu
7-8 Gulai (252 MEB) Michael

Nick

Yu

Tony Chris
8-9     Yu Tony Chris

 

 

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
Dihan
Chris
Coco
Lydia
Tony
Michael
Gulai
Chris
Justin
Yu
Nick
Chris
Kundayi
Yu

 

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