[Danny]

Hey everyone! I'm doing a science project at school, and I need your help!

Materials:

• Curugated Cardboard Strips, no longer then 6" no wider then 1"
• Any Adhesive - NO TAPE

Goal: To build a structure to support a brick

Restrictions:

• Cannot glue strips together vertically
• Device must 16" minimum
• Max Weight: 150 g.
• Need Paperwork - 5 different ideas, with 5 different descriptions

I really need your help! I have NO clue what to do!!!!!!

Danny

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paper mache.

Its the stuff where you mix flour and water, and coat it in newspaper. it dried really hard, and if you make a think lair of it, you should be able to make it support a brick. However its 630am, and im not thinking too much, so talk to me about it later today, you know where to find me (AIM/Chat)

http://www.papiermac...s/p-view/id-23/

Edited by Justin, 11 November 2005 - 07:36 AM.

[Justin]

paper mache.

Its the stuff where you mix flour and water, and coat it in newspaper. it dried really hard, and if you make a think lair of it, you should be able to make it support a brick. However its 630am, and im not thinking too much, so talk to me about it later today, you know where to find me (AIM/Chat)

http://www.papiermac...s/p-view/id-23/

Edited by Justin, 11 November 2005 - 07:36 AM.

[dsenette]

i'd make a honeycomb...

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peices of cardboard on the top then a series of triangles.....inbetween the top cardboard and bottom cardboard

you can also make an arched bridge...which will hold more weight..

just fold equilateral triangles out of the 6 inch pieces of cardboard (basically fold the cardbord every 2 inches) to make a triangle
\/ now just put all the points facing the same way and glue them together...this will give you a pie shaped half circle type deal that will support (depending on the cardboard) like...20 pounds

[Justin]

I dont think he can use cardboard....Has to be newspaper and an adhesive.

[dsenette]

Curugated Cardboard Strips, no longer then 6" no wider then 1"
Any Adhesive - NO TAPE

[Justin]

oh lol, I read newspaper...not cardboard.....

Thats what I get for posting early in the morning....


That pretty much throws out my idea then lol...

[dsenette]

if you can use any adhesive....just take 4 strips of cardboard all 6 inches long....but two of them about two inches apart...and the others across the end....then soak them in a whole lot of 2 part epoxy resin....or gorrilla glue......or jbweld... you'd be able to stand on it without it breaking hehehe

[Danny]

hmm...thats a thought.. I'll try it when I get the stuff

[warriorscot]

Read some civil engineering documentation it will tell you exactly how to design materials to get the most strenght from the minimum amount of material.
Dsnette is one the right track(its the way the corrugated cardboard works as well. What you want to do is distribute the mass as evenly as possible across the structure letting you use the combined strengths of all the structural members rather than focusing it on one or two key structural points that must be very strong.
You also want to work with the strengths of the material itself, corrugated carboard is very strong in side on comression.
If you like i should have some civil engineering lecture notes on PDF and Powerpoint i could send you(dont worry it just gives an overview and key points they arent to bad and will give good refernces for the designs/report part. (as long as you remeber to aknowledge the person that made the documentation you took the reference from of course).

[Danny]

Hey warriorscot!

I'd love it you send that to me!

My email is admin [aT] dknoppix [dTo] com.

And I'll do some reasearch

[Justin]

admin [aT] dknoppix [dTo] com

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