How to make most effective load support from piece of card?

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Discussion Overview

The discussion revolves around designing an effective load-supporting beam using a single piece of card, specifically focusing on the constraints of folding and cutting without the use of adhesives. Participants explore various structural designs and their potential effectiveness in load-bearing scenarios.

Discussion Character

  • Exploratory
  • Technical explanation
  • Homework-related

Main Points Raised

  • Some participants inquire about the strongest cross-sectional shapes for beams, suggesting that the shape significantly influences load distribution.
  • One participant mentions using fine zigzag folds to distribute weight, but expresses uncertainty about its effectiveness, seeking further assistance.
  • Another participant asks for clarification on how the strength of the beam will be tested and what the load will consist of, indicating a need for more information on the testing parameters.

Areas of Agreement / Disagreement

Participants do not appear to reach a consensus on the best design for the beam, with multiple approaches being discussed and uncertainty about their effectiveness remaining.

Contextual Notes

Participants have not fully explored the implications of their design choices, such as the impact of different folding techniques on structural integrity. The discussion lacks detailed mathematical analysis or specific testing methodologies.

Who May Find This Useful

Students or individuals interested in engineering design, structural mechanics, or practical applications of material strength may find this discussion relevant.

mechanic_noob
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Card provided one half of an a4 size (105mm x294mm)
The card is fashioned into a beam and will be subjected to a load test.

Rules
1. The card may only be folded to form a beam; you can cut it to suit your needs. It must NOT be rolled into a tube. Not permitted to use Glue, Adhesive tape, Staples or paper clips.
2. The beam must be produced entirely from the unadulterated single piece of card issued.
3. The beam cannot be attached to the apparatus. Must be placed on the rig prior to application of load.

Cannot combine to pieces of card

The support load is 6mm apart
 
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mechanic_noob said:
Card provided one half of an a4 size (105mm x294mm)
The card is fashioned into a beam and will be subjected to a load test.

Rules
1. The card may only be folded to form a beam; you can cut it to suit your needs. It must NOT be rolled into a tube. Not permitted to use Glue, Adhesive tape, Staples or paper clips.
2. The beam must be produced entirely from the unadulterated single piece of card issued.
3. The beam cannot be attached to the apparatus. Must be placed on the rig prior to application of load.

Cannot combine to pieces of card

The support load is 6mm apart

Welcome to the PF.

We cannot do your school project work for you. We can only ask questions and give hints.

What are your thoughts so far? What cross-sectional shapes make the strongest beams?

Since you cannot use any tape or adhesives to help your beam hold its shape, what are your thoughts for how to make it stay in the shape you fold it into?
 
Yh mate I tried making it into fine zigzags to evenly distribute the weight, it works but its not really the best method. Can you help me out?
 
mechanic_noob said:
Yh mate I tried making it into fine zigzags to evenly distribute the weight, it works but its not really the best method. Can you help me out?

What about my last question in my post?

Also, what other shapes can you think of that would make a strong beam?

Do you know how they will test the strength? What does the load look like?