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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 | |||
| Project Report | |||
| 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.
- 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, I will assign readings from Mechanics of Materials by Hibbeler R.C. (9th edition, equivalent to the "custom" paperback edition in the Illini Union Bookstore) - see Schedule page. These readings are not required and I will not use the textbook numbered problems for assigned homework. Prior editions of the textbook, as well as other similar textbooks, are adequate for the reading content. However, note that the instructor 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 (PrairieLearn) | 35% | Project reports | 5% |
| In-lecture 20-min Quizzes | 5% | Online homework (MasteringEnginnering) | 8% |
| In-lecture iClickers | 2% | Online homework (PrairieLearn) | 7% |
| Discussion worksheets | 8% | 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% | F |
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.
In-lecture 20-min Quizzes: These quizzes are designed to assess your problem solving skills on course material. You will not be allowed to use notes, textbooks or any electronic devices. Solutions will not be posted. You will have a total of 6 in-lecture quizzes, according to the schedule below (schedule may change during the semester). Your lowest score will be dropped. This drop should be reserved for unexpected occurrences such as sickness or a family emergency.
| Date | Topic |
|---|---|
| Sept 21 | Quiz 1: Axial loading |
| Oct 2 | Quiz 2: Torsion |
| Oct 16 | Quiz 3: Beam bending |
| Oct 26 | Quiz 4: Transverse shear |
| Nov 11 | Quiz 5: Combined loading |
| Dec 4 | Quiz 6: Deflection |
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. You are allowed to use calculators. 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:
- Firefox and Chrome are both supported web browsers. Other browsers may not be supported yet.
- Click "Add a course" and then click "TAM 251: Intro. Solid Mechanics" Click on "Quiz #1" (click anywhere in the large red box)
- Click on the green button for the time-slot when you want to take Quiz #1
- 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.
- 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 don’t sign up for the last time-slot of the day, but any earlier time-slot is ok. If you need 3X time then don’t 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.
You will be working in groups throughout the semester. Groups will be formed in week 1 of class using an online system called CATME. You should have received instructions regarding your CATME account and a request to fill out a survey during week 1 of class. Help for filling out the CATME survey is here.
Discussion sections start in Week 1 of semester, with the schedule below.
| Tuesday | Wednesday | |
|---|---|---|
| 11-12 | ADF Justin, Nick, Matt | |
| 12-1 | ADG Justin, Nick, Michael | |
| 1-2 | ADA Sarah, Kundayi, Matt | ADH Justin, Tongxi, Michael |
| 2-3 | ADB Sarah, Kundayi, Matt | |
| 3-4 | ADC Mary, Kundayi, Chris | |
| 4-5 | ADD Mary, Coco, Chris | |
| 5-6 | ADE Tongxi, Coco, Chris |
Online homeworks: Weekly online homeworks will come in two flavours, using MasteringEngineering and PrairieLearn. MasteringEngineering problems are due on Fridays at 11:59pm; PrairieLearn problems are due on Wednesdays at 11:59pm. The first homework will be due in Week 2 of the semester.
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MasteringEngineering:
These assignments will be available from the website www.masteringengineering.com. You should consider one of the following options to obtain access to MasteringEngineering:
- Purchase custom textbook from the bookstore - $135: includes MasteringEngineering + eText + printed custom version of the textbook
- Purchase MasteringEngineering + eText - $111
- Purchase MasteringEngineering only - $51.60 - in this case, you may choose to use your lecture notes for text reference, borrow a book from a friend or library, or buy any other used textbook
Please follow the steps below to start using MasteringEngineering:
- Go to the website http://www.pearsoncustom.com/il/ui_engineering/
- Select one of the three options under the "Sign in" box on the top right of the page.
- "Register Here" - if you purchased the printed version of the textbook from the bookstore
- "Purchase Access with eText"
- "Purchase Access without eText"
- You will need to create a Login Name and Password, or use a previously created MasteringEngineering account
- Enter the Course ID: TAM251FA15
- You will also be asked to enter your UIUC NetID (which is the first part of your email address - NetID@illinois.edu). Make sure you type this information correctly, since it will be used to upload your grades into Compass2g.
Most of the MasteringEngineering assignments are due on Fridays at 11:59 pm. Late submissions will be penalized by 20$\%$ over each day late. Note that some assignments will be due on other days of the week. Make sure to check the deadlines on MasteringEngineering website.
To encourage you to work through the problems and to obtain the correct solution, you may revise and resubmit your solutions numerous times until the due date. You can rework completed items after the due date. This work will not be saved and will not affect your grades. Solutions will not be posted.
- PrairieLearn: These homework assignments will be available from the website https://prairielearn.engr.illinois.edu/tam251fa2015/index.html. Deadlines are available in the Schedule page.
Project Report: You will have one group design project to be completed by the end of the semester. The project description, timeline and deliverables will be posted here soon. The groups are going to be the same as the ones formed for your discussion section.
Final Exam: Dec 14, 2015, 8:00-11:00am
| Exam Room | Last name starting with |
|---|---|
| MSEB 100 | A - L |
| NSRC 149 | M - Z |
Prof. Silva office hours: Mondays 3:30 - 5:00pm, MEB 253
Daily office hours are held in Grainger 429 according to the schedule below. Office hours start in Week 2 of the semester.
| Monday | Tuesday | Wednesday | Thursday | Friday | |
|---|---|---|---|---|---|
| 1–2 | Mark | ||||
| 2-3 | Mark | ||||
| 3-4 | Matt | Sarah | Mark, Justin | ||
| 4-5 | Matt, Mary | Sarah, Chris | Justin, Matt | ||
| 5-6 | Michael | Mary, Chris | Nick, Chris | Matt, Kundayi | |
| 6-7 | Michael | Chris, Coco | Nick, Michael | ||
| 7-8 | Michael | Coco | Michael + Mary |
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 |
|---|---|---|---|---|---|---|
| Sarah | Michael | Chris | Matt | Mary | Nick | Kundayi |
The use of Piazza should not replace the Study Hall time, since some questions cannot be fully addressed via an online forum.