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Design Engineer |
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| --Some properties that
influence strength in bee's honey combs are the geometric shapes
like hexagons. The hexagons stand up to compression so they won't
get smashed. --Spider webs aren't strong because under tension they split and they can rip really easily. --The characteristic of cardboard that is different than paperboard is that it has two layers of paper and in between them is a “fluke” which is the wavy paper that makes it stronger. There are B, C, and E flukes. Each one has a different strength. --The type of design that might help withstand shock is cushioning. --The 3-D shapes that seemed to be the strongest under compression were circular and triangular prisms. |
Interviewed--Bob Godbey, Automation Analyst--State Farm Manila folders are good things to build with if you incorporate geometric shapes. Skyscrapers usually balance by the inner framework supporting the weight of the structure. The wider the base of the structure is the more stable the structure is. To make the joints on the structure stronger and be able to hold more weight use layers of manila folders. Some of the main shapes used in constructing buildings are triangles, rectangles, and squares. Some materials used in building skyscrapers are concrete, steel, glass, wood, and cement blocks. Skyscrapers that are over 100 stories tall need to have more stability to keep in balance. Some building designs take one person but some take many. To help prevent a structure from falling, focus on inner support. To strengthen walls, use geometric shapes that fit well together. |
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Reflection Our design was tall enough (11 3/4 inches) and it had to be at least 9 inches tall. It held 180 pounds and it had to hold at least 45 pounds. Some of the benefits of our design were the circles in the middle of the structure and the wider base. One of the weaknesses of our design was that we didn't put enough internal support in the structure. If I could make another structure I wouldn't put the 2 big triangles inside the square and use those folders to make more internal support, because all the triangles did was make the outer layer stronger when the structure needed more internal support. |
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Bibliography http://www.sciencenews.org/pages/sn_arc99/7_24_99/bob2.htm http://www.units.muohio.edu/dragonfly/webs/spiderlinks.htmlx http://www.cactuscontainers.com/corrugated-materials.html http://en.wikipedia.org/wiki/Cushioning Interview-Bob Godbey
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