HigherEd 2.0

This homework is due on Monday March 30 at NOON. Please be in class on time, because NO late homework will be accepted. Just a few problems on shear stress and shear flow.
Prob. 7-28, 7-42, 7-51
Only three problems, but each will require some effort. There are two nice shear flow examples on […]

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I found this on my hard drive this morning, it’s the solution to a statically indeterminate problem in torsion. Gives some good examples of how to execute these problems.

 

 Video solution: Prob. 5-76: Play Now | Play in Popup | Download

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Exam 2 will take place on Monday March 23 from 6-8 pm. We will be in MEC 205. The content of the exam is everything we’ve covered in chapters 5 and 6 of the book. I expect to have 4 problems, and I will write the exam so that time will hopefully […]

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Since you all have a big workload this week, the homework assignment is fairly light. Remember, this assignment is due at NOON on Friday 3/20, and NO late homework will be accepted. As usual, please don’t come to class late and expect that your homework will be accepted.
All from Chapter 7 on transverse […]

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Funny story. You’re gonna laugh hard about this one…uh, well, seems that I made a huge mistake while solving this problem. I actually recorded this one last year as a cold one, but it’s still as relevant as ever for this semester. So I made a mistake (can you find it?) then […]

 

 Video solution: Prob. 6-123: Play Now | Play in Popup | Download

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Introduction to bending. This is a good one! The discussion about the radius of curvature, the nature of the deformation, the neutral axis, and all the rest…there’s alot of good mechanics here. There is an important but slightly less energetic discussion of sign conventions. In any case, the mechanics here are […]

 

 Lecture 13: Bending basics: Play Now | Play in Popup | Download

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This is a mashup of strength of materials content and statics content. It’s really a bridge lecture from Chapter 5 to Chapter 6, and as such it contains some of each. Have a look at the stress concentration stuff (just like in Ch. 4), and then spend some time reflecting on the shear […]

 

 Lecture 12: Stress concentrations (torsion), V & M: Play Now | Play in Popup | Download

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I have gotten a bit behind on posting these, so here are the first two lectures on torsion. Module 10 focuses on the basic mechanics of torsion and a derivation of the torsion formula. Module 11 then shifts gears and discusses the angle of twist. All of this is good information and […]

 

 Lecture 10: Torsion basics: Play Now | Play in Popup | Download

 

 Lecture 11: Angle of twist: Play Now | Play in Popup | Download

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Just getting caught up here…this is the final lecture from Chapter 4 and it covers some issues in normal stress and stress concentrations. The key here is to look at the correct chart, and read that chart the correct way. Not too difficult, but it does require some practice. There are some […]

 

 Lecture 9: Stress concentrations (axial loading): Play Now | Play in Popup | Download

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This is all about bending. If you need some review of shear and moment (Sec. 6.1 and 6.2), then you must review your statics notes so that you are completely comfortable with the procedures. There are also lots of online resources available to help. All of these problems are due on Friday […]

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