HigherEd 2.0

This is a short and sweet introduction to Chapter 7 on internal forces. We are just trying to motivate the study of Chapter 7 by saying: “we often need to know the distribution of internal forces across a structure in order to identify max/min values, which we use for further analysis.” Simple […]

 

 Lecture module 23, Oct 19, 2007: Play Now | Play in Popup | Download

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One more cold one for you. As is apparent when you watch it, I did not solve this problem before actually sitting down to record the solution, so this is raw footage, the real deal. Not for the faint of heart. This was actually really interesting…there is a long, awkward, embarrassing pause […]

 

 Video Solution: Prob. 6-74: Play Now | Play in Popup | Download

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Oh boy. This one is from way back, probably two weeks ago and attached to Module 15 (and the problem session of Module 16). Anyhow, this is another in my string of experiments with “cold” problem solving. I had not thought about this problem at all when I sat down to make […]

 

 Video Solution: Prob. 5-71: Play Now | Play in Popup | Download

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This module continues our discussion of trusses and zero force members, but also introduces machines and frames. The keys to the analysis of machines and frames can be summarized:

we usually draw component FBDs of each piece of the structure, and these FBDs are constructed as if we have made method of sections cuts […]

 

 Lecture Module 21, October 15 2007: Play Now | Play in Popup | Download

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We spent some time on Oct. 10 and 12 discussing trusses (and the exam), and we introduced a piece of software called Arcade. This is a really cool and powerful tool for structural analysis and visualization. As you saw in class, it has lots of great intuitive features (color and thickness of line, […]

 

 Video: A truss with multiple zero force members.: Play Now | Play in Popup | Download

 

 Video: column buckling simulation (no ZFM): Play Now | Play in Popup | Download

 

 Video: column with no buckling due to presence of ZFM: Play Now | Play in Popup | Download

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Seems like so long ago…but this is a good one. It introduces us to trusses and to some truss analysis tools. Here you will find a description of two of the key methods for structural analysis: method of joints and method of sections. In general, the method of sections is more […]

 

 Lecture Module 17, August 5 2007: Play Now | Play in Popup | Download

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Due date for this assignment is Friday 10/19 at 4 pm. These problems are all from Chapter 5 and give good practice on rigid body equilibrium problems. In particular, you get to see lots of different types of connections, so don’t forget to consult Tables 5-1 and 5-2 if you need guidance.
Probs. 5-26, […]

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As promised in class on Wednesday, here it is. A word of warning (and interest): I didn’t work out the solution ahead of time, so this is live real-time problem solving. As such, I make two mistakes in the solution which I take the time to correct. I guess there’s a […]

 

 Video solution: Prob. 5-66: Play Now | Play in Popup | Download

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We started this problem with the ramp on Monday in class, and I sensed alot of confusion. I could tell because several people were giving me this kind of distant stare. In any case, I have written up the solution and recorded the video posted below. In it, I focus on the […]

 

 Podcast Video: Play Now | Play in Popup | Download

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This homework was circulated via email earlier in the day. There are 4 problems, and they are due Friday Oct. 5 at 4 pm.
Problems 4-124, 130, 144, 145
As usual, use this post as an open thread for discussion.

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