CVEN 305/301 - Mechanics of Materials

Summer 2020 [10402]

 

Objectives:         To  introduce  students  to  applications  of  stress  and  deformation  relationships  for  structural members  subjected  to  axial,  torsional,  and  bending  loads,  and  thin-walled  pressure  vessels. Students will  study  stress  and  deformation of  structural  members under  combined  loadings, stability of columns, including indeterminate structures and members.

 

Prerequisites:    To take CVEN 305, you must have received a passing grade in CVEN 221 or the equivalent.  Concurrent registration is not permitted in a prerequisite statics course in any section of CVEN 305.

 

Lecture:              MWF 08:00 - 09:10 am on Zoom

Office and hours:     http://Lowery.tamu.edu/OfficeHours

 

Instructor:          Lee Lowery, Jr, PhD, P.E.

                             Office: 705-E Dwight Look Engineering Building

                             Phone:  979-845-4395  (Office is quarantined so use Home Number:  979-775-5401)
                             email:   Lowery@tamu.edu

                             Web:    http://Lowery.tamu.edu  

  

 

TA: Jay Shah

            Office hours:  4:00pm-6:00pm Tuesday and Thursday and upon email request.
           Location: Zoom to be sent for meeting
           Email address:  jayshah086@tamu.edu

Jay Shaw


T
extbook:          

Electronic Version as discussed later of Beer, Ferdinand P., E. Russell Johnston, Jr., John T. DeWolf, and David F. Mazurek. 2019. Mechanics of Materials. Eighth Edition. McGraw-Hill.

You can purchase access to McGraw-Hill Connect for the homework using the link to the homework on the course website (discussed later) and this comes with an e-book. Otherwise you can purchase the following:

Combo: Looseleaf with 1-Semester Access Card, Beer 8th ed, 2020 net price $100, ISBN 9781260901085

 

Grading:   Your letter grade for this course will be determined based upon grades from 10 or more weekly quizzes, a final exam, and homework assignments, as follows.

 

Weekly Quizzes

Most Fridays beginning on 6/5/2020 with Unannounced Rogue Quizzes on other random class days.

50%

Final Exam

Tuesday, August 4th, 2020

8:00 am 10:00 am

CHECK THIS AT THE FOLLOWING ADDRESS

https://registrar.tamu.edu/Registrar/media/REGI_SpecPDFDocs/Summer-2020-Finals-Exam-Schedule.pdf

30%

Homework

 On McGraw-Hill website

20%

 

Total

100%

 

 

Final grade based on your average grade "P" 

A:  for P ≥ 90;   B:  90 > for P ≥ 80;   C:  80 >for P ≥ 70;   D:  70 > for P ≥ 60;   F:  60 > P

 

THERE IS NO EXTRA CREDIT AVAILABLE IN ANY FORM
EVERYONE IS GRADED EQUALLY


Course Coverage:  The summer format for this class is grouped into fourteen 2-day groups. While these 2-day groups do not coincide with weeks, this is the most logical way to divide the material to agree with the accompanying McGraw Hill videos and homework problems. The homework and video assignments will be assigned by 2-day groups as listed on the McGraw Hill web site where you enrolled for the course.  Due dates on which viewing the EWG videos are listed below, but homework due dates are only listed on the McGraw web site since they get changed from time to time.

 

A list of the materials you learned in the past and for which you are responsible on all exams in this class.

 

COURSE COVERAGE TABLE:

                                               

Equivalent Weekly Group - Required Video Viewing Assignments Textbook Reading Assignments Material Coverage (approximate)
This is where we are supposed to be in the class.  See

EWG 1)
    Lecture 1 - W
5/27
    Lecture 2 - F 5/29

Introduction and course overview

Text Sections 1.1, 1.2, 1.2A, 1.2B, 1.2C, 1.2D, 1.2E

Statics Review, Axial Stress, Uniform Bearing Stress, Uniform Shearing Stress, Pinned Axial Member

EWG 2)

    Lecture 3 - M 6/1
    Lecture 4 - W 6/3

Text Sections 1.3, 1.4, 1.5, 1.5A, 1.5B, 1.5C, 1.5D, 2.1, 2.1A, 2.1B, 2.1C, 2.1D

Stresses on Oblique Planes, General State of Stress, Plane Stress, Analysis and Design, Factor of Safety, LRFD, Axial Loads

EWG 3)

   Lecture 5 - F 6/5

   Lecture 6 - M 6/8

Text Sections 2.1E,2.1F, 2.1G, 2.2, 2.3, 2.4

Indeterminate Axial Load, Indeterminate structures by  Superposition

Axial Loads, Temperature Axial Loads, Poissons Ratio

Weekly quiz #1 covers above material.

 

EWG 4)

    Lecture 7 - W 6/10

    Lecture 8 - F 6/12

Text Sections 2.5, 2.7, 2.10, 2.11, 3.1, 3.1A, 3.1B, 3.1C

At this juncture, students are strongly encouraged to study Appendix A thoroughly.

Hookes Law, Shearing Stress, Complete Hookes Law, St Venants, Stress Concentration, Torsion of circular bars.

Weekly quiz #2 covers everything from day 1 through Lecture 7

EWG 5)

   Lecture 9 - M 6/15

   Lecture 10  - W 6/17

Text Sections  3.2, 3.3, 3.4

Angle of Twist, Axial Torsion Analogy, Torsion Example Problem, Gear Relationships, Composite Shaft Problem, Fixed Shaft Problem, Power

EWG 6)

    Lecture 11 - F 6/19

    Lecture 12 - M 6/22

Text Sections 3.5, 4.1, 4.1A, 4.1B, 4.2

Stress Concentration factors, Flexure Derivation

Weekly quiz #3 covers everything from day 1 through Lecture 10

 

EWG 7)

     Lecture 13 - W 6/24

     Lecture 14 - F 6/26

Text Sections 4.3, 4.4, 4.5, 4.7

Composite Beam, Stress Concentration, Planar Eccentricity

Weekly quiz #4 covers through Lecture 13

EWG 8)

    Lecture 15 - 7/1

    Lecture 16 - F7-3

Text Sections, 4.8, 4.9, 5.1, 5.2

Unsymmetric Bending, General Unsymmetric Bending, Shear and Moment Equations, Shear and Moment Rules

Weekly quiz #5 covers through Lecture 15

EWG 9)

    Lecture 17 - M 7/6

    Lecture 18 - W 7-8

Text Sections 5.3, 6.1, 6.1A, 6.1B

Beam Design, Shearing Stress in Beams

EWG 10)

   Lecture 19- F7/10

   Lecture 20 - M 7/13

Text Sections  6.1C,  6.3, 6.4, 7.1, 7.1A

Stress Transformation I

Weekly quiz #6 covers through Lecture 18

EWG 11)

   Lecture 21 - W 7/15

   Lecture 22 - F 7/17

Text Sections 7.1B, 7.2

Stress Transformation II, Mohr’s circle,

Weekly quiz #7 covers through Lecture 21

EWG 12)

   Lecture 23 - M 7/20

   Lecture 24 - W 7/22

Text Sections 7.3, 7.4, 7.6, 9.1, 9.1A

Absolute Maximum Stress, Pressure Vessels, Spherical Pressure Vessels, Introduction to Beam Deflection, Beam Deflection Problem 1

EWG 13)

   Lecture 25 - F7/24

   Lecture 26- M 7/27

Text Sections 9.2, 9.3

Beam Deflection Problem 2, Beam Deflection Problem 3, Singularity Function, Singularity Function Problem 1, Singularity Function Problem 2, Singularity Function Problem 3

Weekly quiz #8 covers through Lecture 24

EWG 14)

   Lecture 27 - W 7/29

   Lecture 28 - F7/31

    Lecture 29 - M 8/3

Text Sections 9.4, 9.4A, 9.4B, 10.1, 10.1A, 10.1B

Column Buckling

Weekly quiz #9 covers through Lecture 27

 

Final Exam: 08/04/2020 Tuesday 8:00 am – 10:00 am

 

 


Semester Groups: Each semester contains 14 groups of material listed above.  These are not weeks.  They span the 10 week class in order to agree with the McGraw Hill Homework and Video materials.

 

Websites :     The McGrawHill Connect website will serve as one of two central resources for this class throughout the semester.  The Connect website contains your electronic text book if purchased and provides the only interface where you can submit your homework.  You cannot email it to anyone nor put it on eCampus for grading.  It is only graded and recorded by McGraw Hill.  Membership in this website can be established by entering the code that you purchased at the bookstore or you can simply go to the McGrawHill website and join directly without interfacing with a bookstore.  It's also less expensive.  You can access a link to register for this section (CVEN 305/301 Lowery) on the McGraw Hill Connect website by CLICKING HERE

 

                          Additional instructions are listed here on the Course Coordinator's (Dr. Brackins) website.  NOTE that this site gives information regarding getting into and using the videos, but it is out of date on registering at McGraw Hill.  Classes listed are for last semester's classes. 

 

                        Again, to register for this summer's 305/301 class at McGraw Hill, CLICK HERE:

 

https://connect.mheducation.com/paamweb/index.html#/registration/signup/l-lowery-summer20

 

Daily Videos: The Beason video lectures are organized by chapters and topics and are available on Dr. Brackins web site at the following address: 

http://www.beasonbrackin.com/civil/mechanics/ 

 

The link Course Videos” towards the top of Brackin's website will provide access to the course videos.  The videos are only accessible to those formally enrolled this semester in CVEN 305.  You will have to log in there. Password to these videos, if required, is     Videos      (case sensitive).

 

In some cases (most cases) when you click on one of the videos your computer will probably say “If your video fails to load, your browser's flash player is not working properly. Please check out our Flash help section.”  If so, your computer needs to be set such that it can display Flash content. 

 

For Chrome browsers, you log in as usual.  When it gives you the "Flash is not working" note, you will see at the top left of the screen the words “Not Secure”.  Click on those words.  In the resulting drop down box hit “Ask (default)” and then click on "Allow”.  Then click back on the page you are on and it should say “Reload”.  Click Reload.  Then go back to the link above and click on videos and they should display the note: “CVEN 305: Mechanics of Materials - Videos and Course Notes”.  Here is a short video on how to fix your Chrome browser.  Click Here.


If you have trouble getting back to that page, you can click on the link http://www.beasonbrackin.com/civil/mechanics/  again, and start over.  However, having now told Chrome it's OK to display Flash content, it will now play the files.  Chrome will know this until you turn it off.  Then you have to go through all the above again.  You have to do this every time you close your computer.

 

For Windows Explorer, click on the “gear” on the top right of the screen and go to Manage Addons. Go down to Microsoft and find the Flash button and click on it.  I don’t know about you, but my computer flat has no Flash on it anywhere, so I had to call MediaMatrix at 979-845-1236 and get them to walk me through what to do.  Excuses included that MediaMatrix is getting ready to close down (great), and Flash is old and unsupported (great) and …

My suggestion is to just use Chrome.  It works, although you have to log in each time as listed above.


CLICK BELOW TO REGISTER WITH McGraw-Hill Connect:   

CVEN 305/301: Lowery (MWF 8 to 9:10 am)
   

     The distribution of the videos is presented in the course coverage table.  It is your responsibility to watch all of the videos prior to the corresponding topics being addressed in class.  You should refer to the textbook reading assignments presented in the course coverage table, the video assignments presented in the course coverage table, and the weekly homework assignments presented on the McGrawHill website to pace yourself through the videos.

 

Some class time will be devoted to clarifying information that is presented in the videos that may need further explanation or discussion. The rest of our class time will be spent on pertinent examples and expanded material presented in the videos. It will be very hard for you to do well in this class unless you watch each assigned video before coming to that class.


Weekly Quizzes:
Weekly quizzes will be administered on most Fridays.  Rogue quizzes may also be given on any day at random, including Fridays.  Quizzes will usually consist of one question each. The questions that appear will be inspired by homework problems that are due up to and including material presented on the day of the weekly quiz, problems that are covered in class, and materials covered in your statics class. 

YOU MUST BRING BLANK 8 1/2" x 11" PAPER WITH YOU EVERY DAY TO CLASS ON WHICH TO WORK EXAMS FOR SUBMISSION TO ECAMPUS.
  YOU SHOULD GO AHEAD TODAY AND MAKE SURE THAT YOU CAN PHOTOGRAPH AND EMAIL A PERFECTLY LEGIBLE PROBLEM SOLUTION TO YOURSELF ON A PIECE OF PAPER.  YOU WILL HAVE TO USE A VERY SOFT PENCIL OR DARK PEN AND EMAIL IT TO YOURSELF.  IF YOU CAN'T READ THAT EMAIL COPY, WE WON'T BE ABLE TO EITHER. 

 

We don't want to force you to use any specific software, but some do a much better job of making a legible copy than others.  One of my students suggested Cam Scanner to me and I loved it.  Until I read that they had been hacked and that someone they were selling my information to (which they ALL do - that's how they can give it to you free) was playing fast and loose with the data. Like Facebook does.  Like Google does.  Like everything out there that's "free".  And after reading Camscanner's EULA I immediately deleted it.  Someone else suggested a scanner from Adobe, which at least has some kind of reputation.

 

You do not have to copy all of the given and required, and figures from a quiz but you will be expected to present a neat, legible, complete solution that contains any new figures and free body diagrams, units, and appropriate sign conventions required to make sense of your solution.  Your solution should be presented in a logical and methodical manner.  Please note that if your solution presentation is not clear and neat, points will be deducted.  It must also include your name, date and quiz number.

Other Comments:

I am told that when submitting a weekly exam electronically via an eCampus submission box, you should always check that the file was uploaded successfully.  This can be checked by downloading the file that you just submitted.  This helps prevent errors such as when students inadvertently click <Save> rather than <Submit>. 

Work that was <Saved> but not <Submitted> may not be able to be accessed by the grading team and therefore will not be graded.

ALSO, when submitting homework to the McGrawHill homework site, be very careful NOT to SUBMIT your work until you are completely finished with it.  If you want to come back later and work on it some more, just SAVE it.  Once you SUBMIT it, they think you are finished with it they immediately grade it, including the last 2 or 3 problems you had planned on working on tomorrow, for which they just gave you a zero, and now its too late to change your mind.

 

Comments on Taking Makeup Exams

 

Late Homework: 

Howdy Professor Lowery!  I was curious looking through the syllabus, maybe I might have missed it, but what is your policy on late homework?

Thanks,

Joe 

Joe:
McGraw Hill grades the homework, and if turned on in time gives you 10 points for each correct answer.  It will still let you work on others and change your grade after that and tell you your new grade as a 10 so you know you finally got it correct, but you actually only get a 7 for anyything turned in late. 
So it’s certainly worth going ahead and turning them in late (1) to get some credit, and (2) for the practice working similar problems which show up on the weekly quizzes, and the final exam.

L^3  

Resources available to the student - NOTE THAT MUCH OF THE LINKED INFORMATION FOLLOWING HAD TO BE MODIFIED EXTENSIVLY DUE TO OUR CONVERSION TO ZOOM AND DISTANCE EDUCATION THIS SEMESTER.  PLEASE LET ME KNOW IF YOU FIND SOMETHING I MISSED IN THAT WORK.

  • Check Q-drop date on University Academic Calendar here
  • Typical point deductions you can expect on exams and pop quizzes
  • Video examples - Strength of materials problems and some by Dr. Beason
  • Answers to all questions after administration of final exams
  • Zachry Building Room Map (Not used this semester, sadly.)
  • Video help with a few of the McGrawHill homework problems 
  • The correct time (to the nanosecond)

     

    Course Information for all sections from the 305 Course Administrator:

    Weekly minor quizzes:  Announced Weekly quizzes, when given, will be given during the last half of Friday's class (not always, but be prepared).  You should bring a copy of the 305 equation sheet attached here to all exams including the final exam.  Bring blank 8 1/2" x 11" sheets of paper and a soft-lead pencil or pen to every class on which to take these quizzes.

    NOTES ON YOUR HOMEWORK:
    The homework assignments may have to be modified from that shown below, depending on our progress during the semester.  Please check the list for changes each day before you work them.  Also note that you MUST submit your answers before the deadline due date stated.  

    Notes on required viewing of videos:

    Quite a few of the homework problems normally assigned in this class have been dropped and replaced in favor of viewing some videos before coming to class.  These video assignments can be accessed by going to http://www.michaelsbrackin.com/cven305/.  The password is "videos" and is case sensitive.  They are also listed in the Video column below.  In each case, you should print out the notes, and then view the videos that follow the notes.  Again, in my case I have to use Firefox to view them.  I am told Chrome also works.  IE may work for you if Flash works on your computer.  If you install Flash BE SURE to unclick their "Optional Offer" trash before installing it.

     

     

    Homework:    All homework is accessed through the McGrawHill website identified above.  Your answers must be submitted through this website.  This is the only way that you can receive credit for the assigned homework.  The homework is to be submitted to and will be due as indicated on the McGrawHill website.

     

     I would advise you to assemble all of the numbered calculation sheets for each assignment in a homework notebook.  This notebook will be a very valuable resource as you prepare for the comprehensive final.  In addition, you MUST bring your problem solution with you should you need help with it during office hours or with the T.A.

     

    Attendance at Minor Quizzes and Final: It is your responsibility to be aware of the dates and times of the weekly quizzes and the final exam.  Changes, if any, to the printed dates and times will be announced in class.  Information presented by the University regarding the timing of the final exam supersedes anything printed herein.

     

    A university excused absence is required to justify an absence from a weekly quiz or the final exam at the announced time and place as defined below.  A doctor’s note must include a statement that you could/cannot appear for valid medical reasons.  The mere fact that you happened to be in a doctor’s office at the time of the examination is not sufficient.  The instructor should be notified of any impending absences well in advance of the scheduled date if possible.

     

    Do not attempt to postpone a quiz/exam on the day that it is scheduled.  It will be extremely hard to locate the instructor on the day of the quiz/exam because they will be involved in final preparations for the quiz/exam.

    For authorized absences, the instructor can chose to either give a makeup or exclude the missed material from the final grade calculations at their discretion. The make-up day for all missed quizzes is scheduled for later in the semester when hopefully no one later will ned it.  That date is as yet to be determined.

     

    No credit will be given for unauthorized absences.


    E
    xcused Absences (Definition from Student Rules:)

    http://student-rules.tamu.edu/

     

    Academic Integrity Statement:

     

    An Aggie does not lie, cheat, or steal or tolerate those who do.”  Students are expected to understand and abide by the Aggie Honor Code presented on the web at: http://aggiehonor.tamu.edu  No form of scholastic misconduct will be tolerated. Academic misconduct includes cheating, fabrication, falsification, multiple submissions, plagiarism, complicity, etc.  These are more fully defined in the above web site.  Violations will be handled in accordance with the Aggie Honor System Process described on the web site.

     

    Unless specifically allowed in advance by the instructor, all assignments and homework in this class are expected to be completed based on individual effort. Copying the work of others, including a solutions manual, is a violation of Texas A&M Aggie Honor Code, Cheating.

     

    Upon accepting admission to Texas A&M University, a student immediately assumes a commitment to uphold the Honor Code, to accept responsibility for learning, and to follow the philosophy and rules of the Honor System. Students will be required to state their commitment on examinations, research papers, and other academic work. Ignorance of the rules does not exclude any member of the TAMU community from the requirements of the processes of the Honor System.

     

    Americans with Disabilities Act:

     

     

  • ABET Outcomes Addressed – From New (1) – (7)

    1. an ability to identify, formulate, and solve complex engineering problems by applying principles of engineering, science, and mathematics

    4. an ability to recognize ethical and professional responsibilities in engineering situations and make informed judgments, which must consider the impact of engineering solutions in global, economic, environmental, and societal contexts

    7. an ability to acquire and apply new knowledge as needed, using appropriate learning strategies.