HigherEd 2.0

Our friend Brevy Cannon, after considerable effort, has sent along the video of the NBC29 newscast from December. Many thanks to Brevy for his help with this. If you haven’t seen it before, have a look–the focus is exactly where it should be. Student achievement and excellence are presented very well. […]

 

 NBC 29 news story on the podcast contest: Play Now | Play in Popup | Download

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The big ticket item from Module 11 is the statically indeterminate problems with torsion. These are treated in precisely the same way as in Chapter 4 on axial loading, with the twist constraint being the analog to the change in length constraint from Chapter 4. Have a look and give Problem 5-74 a […]

 Lecture module 11, Feb 12 2007: Download

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Due date for this homework is Friday 2/16 at 4 pm. As promised, there is one problem on thermal stress.
Probs. 4-75, 4-89, 4-95, 5-5, 5-25, 5-29, 5-52, 5-61
Some notes: Prob. 5-29 involves integrating the frictional torque function along the length of the shaft. It’s best to do this numerically. You can […]

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Today we introduced the torsion formula, including its derivation and some usage. I encourage you to review the derivation of the equation (the slide with the highlighted triangles), but also focus on the last remarks slide. It contains some good advice about how to approach torsion problems and what to watch out for. […]

 

 Lecture module 10, Feb 9 2007: Play Now | Play in Popup | Download

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You can see another solution to Prob. 4-91, courtesy of Will Solomon. This is essentially the same as Kyle’s solution, but it shows the equations more clearly.
Which one do you like better? Leave your votes as comments here.

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If you had any doubt that engineers can play an enormous part in shaping the World’s future, check out this recent announcement about a climate change competition largely funded by gajillionaire Richard Branson. This will surely get the world’s scientists and engineers mobilized, similar to the recent buzz around the Ansari X Prize […]

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Another nice Flickr post from Patrick Rave, this time for Prob. 4-92. Once again, he has annotated the solution with appropriate commentary to help you get the full picture. Thanks again to Patrick! If you have comments about this solution, post them here.

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Kyle Mullane has provided a solution to Prob. 4-91 that we started in class the other day as a comment to the corresponding lecture’s post. Click through and have a look, and feel free to comment on his comment! Thanks to Kyle!

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I looooooove this solution to Prob. 4-38, courtesy of Patrick Rave. He has posted the solution to Flickr, then annotated it with some comments and description. Click through on the link, then roll your cursor over the boxes to see the annotation. Patrick has come up with a great idea for conveying […]

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Today we covered thermal stresses and stress concentrations. For our class, stress concentrations are probably more important, although in engineering life they are both pretty important. I encourage you to click through on some of the links in the module, especially the one for the website of stress concentration factors.
In addition, […]

 Lecture module 9, Feb 5 2007: Download

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