Lectures and Notes
Note: None of this will make sense without a text. Click here to see which text you need to make sense out of these lectures.
The Lectures are MP4 on Zoom. A password is given since they sent me one with the file, but I don’t think it is needed. You can either left-click on the Lecture files and view them or you can download them to your computer and play them from there. Right click on the file to “Download” it, then “Save Target As” wherever you like, then double click the file name from wherever you saved it.
Please also note that the links below will be blank until we have had the class and generate the materials.
Click below to view the Zoom class lectures
For reference, last year’s videos and notes are posted here.
| Class | Lecture videos | Access Password if needed |
Material covered Time on video/Covered |
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| Class 1 Wednesday 5/27/20 |
Zoom Video | 0d?F5^o= | Class starts 13 minutes into the video. How to use the syllabus, Statics, axial normal (tension ans compressive) and shear stresses |
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| Class 2 Friday 5/29/20 |
Zoom Video | 9n=Hp0qp | Class starts 18 minutes into the video, ends at 83 minutes. More normal and shear stresses, bolt bearing stresses. Sigma = stress in an existing structure, Sigma Allowed = the stress permitted by the governing code written by experts on that material. Equations are used for analysis (what is the stress in an existing structure), to determine the allowed load in an existing structure, or to determine the required size for a planned structure (design)., |
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| Class 3 Monday 6/1/20 |
Zoom Video | 9k.*+R=7 | ||
| Class 4 Wednesday 6/3/20 |
Zoom Video | 8W*!ug$4 | Stresses in pinned bars, tensile, compressive, bearing stresses in bolted connections, stress concentrtions around holes in bars. Phony quiz 1 (practice only to see how real weekly quizzes and the final will be given.) | |
| Class 5 Friday 6/5/20 |
Zoom Video | 0O.0+=8# | Class starts 18 minutes into the video. Stress strain diagrams. modulud of elasticity, deformation of axially loaded bars Weekly quiz #1 at end of class. |
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| Class 6 Monday 6/8/20 |
Zoom Video | 7i!L!2@K | Stress concentration factors, torsional shearing stresses in circular shafts and pipes. | |
| Class 7 Wednesday 6/10/20 |
Zoom Video | 4F$s&.^* | Short review, equations sheets, Solution to our Weekly Quiz #1 Work several example problems, tensile and shear stresses, axial deflections, thermal deformations, statically indeterminate axially loaded and thermally loaded rods. |
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| Class 8 Friday 6/12/20 |
Zoom Video | 4e%$B^13 | Class starts 39 minutes into video Finding torques in shafts, angles of twist |
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| Class 9 Monday 6/15/20 |
Zoom Video | 3b?jDz5b | Torque, stresses, gears | |
| Class 10 Wednesday 6/17/20 |
Zoom Video | 0u=7+Vp7 | Short review, 305 equation sheet review, how stresses are distributed in structures due to axial loads, shearing loads, torsional loads, BENDING LOADS, solve for torque in statically indeterminate torsionally loaded bar then determine required size of bar. Start on bending moments, stresses. | |
| Class 11 Friday 6/19/20 |
Zoom Video | 8z#@*&26 | Class starts at 18:30 into video Composite beams (beams of two different materials) |
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| Class 12 Monday 6/22/20 |
Zoom Video | 5s!e+.=Y | How to work various problems similar to homework – examples | |
| Class 13 Wednesday 6/24/20 |
Zoom Video | 1A&O3#r& |
Class starts 24 minutes into the video. Combined stresses: Axial and bending about both x and y axis. |
|
| Class 14 Friday 6/26/20 |
5u$3*C*1 5u$3*C*1 |
Class starts 31 minutes into the video Biaxial bending, writing equations for bending moments in loaded beams. Quiz #4 given Q4 solution discussion starts 1:56 hours into the video |
||
| No class Monday 7/1/20 |
Zoom died | We weren’t supposed to have class anyway, so no problem. | ||
| Class 15 Wednesday 7/1/20 |
Zoom Video | 5X^@22?+ | Class 15 startded 19 minutes into the video. Drawing shear and moment diagrams, writing equations for them. |
|
| Class 16 Friday 7/3/20 |
Zoom Video | 2U.#p*7T | Class 16 starts 21 minutes into the video. Bending moments, diagrams, equations, stresses. Quiz #5 given. Discussion of Quiz #5 starts at 1hr 41 minutes into the lecture. |
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| Class 17 Monday 7/6/20 |
Zoom Video | 9p%!P52R | Class 17 starts 31 minutes into the video. Shearing stresses in beams (NOT BOLTS) Tau = VQ/It, How to get Q. |
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| Class 18 Wednesday 7/8/20 |
Zoom Video | 9d++q90r | Class starts 25 minutes into the video. Good examplesof determining Q for use in VQ/ItT |
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| Class 19 Friday 7/10/20 |
Zoom Video | 6i&0&@L% | Class starts 1:13;20 in video Weekly Quiz #6 discussion starts 2:57 in video Close out determining Q for use in VQ/ItT |
|
| Class 20 Monday 7/13/20 |
Zoom Video | 6y*&V@+0 |
Class starts 19 minutes into the video. Close out shear stress in beams due to bending, how to get shear stress in the flange. Principal strsses at a point when given Sigma x, Sigma y, Tau xy = Tau yx. |
|
| Class 21 Wednesday 7/15/20 |
Zoom Video | 7J+Nq8F^ | Class starts 20 minutes into the video. Quick review of finding principal shear and normal (tension and compressive) stresses at a point where sigmax, sigmay and tayxy are known from P/A, Mc/I, VQ/It, etc. Finding principal stresses using Mohr’s Circle, rather than equations.. |
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| Class 22 Friday 7/17/20 |
Zoom Video | 3t$+f07. | Class starts 44 minutes into the video Three examples of using Mohr’s circle to find principal stresses Discussion about the solution to today’s weekly quiz starts at 2hrs, 5minutes |
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| .Class 23 Monday 7/20/20 |
Zoom Video | rem+&!q2 | Class starts 28 minutes into the video Class covers Brief review of the equations sheet, out of plane shear stresses by equations and Mohr’s circle, stresses in thinwalled cylindricaland spherical pressure vessels, introduction to beam deflections. |
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| Class 24 Wednesday 7/22/20 |
Zoom Video | pw6=!*k! | Class starts 22:30 minutes into the video Beam deflections by direct integration. |
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| Class 25 Friday 7/24/20 |
Zoom Video | t6h6$=== | Class starts 25 minutes into the video. Weekly quiz 08 discussion starts 2:14:00 into the video. More beam deflections by direct integration for simply loaded beams with continuous equations from end to end of beam. Next, more complex loadings requiring more than one range of equations. |
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| Class 26 Monday 7/27/20 |
Zoom Video | xj6IDu!S | Class starts 21 minutes into the video. Singularity Functions. |
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| Class 27 Wednesday 7/29/20 |
Zoom Video | ?44B8qzV | Class starts 20 minutes into the vido, however something went wrong and the video is missing until 34 minuteds into the video, so start there. Singularity Functions |
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| Class 28 Friday 7/31/20 |
Zoom Video | @Uss5=7L | Class starts minutes into the video. Columns I NOT ON FINAL EXAM Friday Weekly exam 09 discussed at end of video |
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| Class 29 Monday 8/3/20 |
Zoom Video | %*q=Zbo4 | Class starts minutes into the video. Columns II NOT ON FINAL EXAM |
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| FINAL EXAM | Final Exam Tuesday Aug 4th, 8am-10am CHECK THIS YOURSELF !!!!!!!!!!!!! |