Chapter 10 Shapes of Molecules The Three Dimensional Reality of Molecular Shapes.
Strength of Shapes
description
Transcript of Strength of Shapes
![Page 1: Strength of Shapes](https://reader036.fdocuments.us/reader036/viewer/2022062501/5681638c550346895dd47c60/html5/thumbnails/1.jpg)
Strength of ShapesExploring Structural Engineering Fundamentals
![Page 2: Strength of Shapes](https://reader036.fdocuments.us/reader036/viewer/2022062501/5681638c550346895dd47c60/html5/thumbnails/2.jpg)
Shapes in Bridges
![Page 3: Strength of Shapes](https://reader036.fdocuments.us/reader036/viewer/2022062501/5681638c550346895dd47c60/html5/thumbnails/3.jpg)
Shapes in Buildings
![Page 4: Strength of Shapes](https://reader036.fdocuments.us/reader036/viewer/2022062501/5681638c550346895dd47c60/html5/thumbnails/4.jpg)
Shapes in Other Things!
![Page 5: Strength of Shapes](https://reader036.fdocuments.us/reader036/viewer/2022062501/5681638c550346895dd47c60/html5/thumbnails/5.jpg)
Relative Strength of Shapes On your paper, sketch what you
think will happen to these shapes if we apply the force shown in GREEN (assume the sides are rigid)
![Page 6: Strength of Shapes](https://reader036.fdocuments.us/reader036/viewer/2022062501/5681638c550346895dd47c60/html5/thumbnails/6.jpg)
Relative Strength of Shapes The TRIANGLE is the only shape that
won’t collapse! WHY?
![Page 7: Strength of Shapes](https://reader036.fdocuments.us/reader036/viewer/2022062501/5681638c550346895dd47c60/html5/thumbnails/7.jpg)
The other shapes collapse because the angles between the structural members change.
Relative Strength of Shapes
![Page 8: Strength of Shapes](https://reader036.fdocuments.us/reader036/viewer/2022062501/5681638c550346895dd47c60/html5/thumbnails/8.jpg)
Triangles The TRIANGLE cannot collapse
because the angles are fixed based on the opposite side length.
A
C
B
ab
c
![Page 9: Strength of Shapes](https://reader036.fdocuments.us/reader036/viewer/2022062501/5681638c550346895dd47c60/html5/thumbnails/9.jpg)
All other shapes can be deformed because the angles are not fixed. Draw these shapes in a way that will keep them from collapsing.
Relative Strength of Shapes
![Page 10: Strength of Shapes](https://reader036.fdocuments.us/reader036/viewer/2022062501/5681638c550346895dd47c60/html5/thumbnails/10.jpg)
Make TRIANGLES!
Relative Strength of Shapes
![Page 11: Strength of Shapes](https://reader036.fdocuments.us/reader036/viewer/2022062501/5681638c550346895dd47c60/html5/thumbnails/11.jpg)
3D Shapes
The same thing applies in 3D
![Page 12: Strength of Shapes](https://reader036.fdocuments.us/reader036/viewer/2022062501/5681638c550346895dd47c60/html5/thumbnails/12.jpg)
3D Trusses
The same thing applies in 3D
![Page 13: Strength of Shapes](https://reader036.fdocuments.us/reader036/viewer/2022062501/5681638c550346895dd47c60/html5/thumbnails/13.jpg)
Strength of ShapesExploring Structural Engineering Fundamentals