What are interesting/cool topics about material deformation?

In summary, the speaker is looking for an interesting topic for their 10 minute presentation in a class. They struggle with memorizing material, but believe that finding a captivating topic will help them remember better. They specify that the topic should be related to deformation or fracture of a material in terms of micro structure. Some suggestions are given, including spaghetti breaking and Nitinol, a shape memory alloy. Another idea is auxetics, which deform in an opposite manner to regular materials. The speaker also mentions Veritaseum's videos on shape changing micro robots and bending machines as potential resources for their presentation.
  • #1
ENGBIO
19
1
Hey guys, so I have to give a 10 minute presentation for my class. I am absolutely terrible at memorizing stuff. Its pretty bad. If I can find an interesting or cool topic I would be able to remember material better.
It needs to be about deformation or fracture of a material in terms of micro structure.

Are there any topics you guys know about the would be interesting to a lay person?
 
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  • #3
More on spaghetti breaking where applying a twist can allow the spaghetti to break in two pieces instead of three or more:

 
  • #4
ENGBIO said:
It needs to be about deformation or fracture of a material in terms of micro structure.
Have you learned about Nitinol yet ("shape memory alloy")? Very interesting material, with some unique applications...

https://www.memry.com/intro-to-nitinol

https://en.wikipedia.org/wiki/Nickel_titanium
 
  • #5
What about auxetics ? They deform in opposite manner than regular materials - when subjected to tension they become thicker and when subjected to compression they become thinner.
 
  • #6
Veritaseum had this video on shape changing micro robots:



and this one on bending machines:

 

What is material deformation?

Material deformation is the process of changing the shape, size, or structure of a material due to external forces or stresses. This can occur through various mechanisms such as stretching, bending, compression, or shearing.

What are some interesting applications of material deformation?

Material deformation is a crucial concept in various fields such as engineering, materials science, and geology. Some interesting applications include designing stronger and more durable structures, understanding the behavior of materials under different conditions, and predicting natural disasters such as earthquakes and landslides.

What are some cool experiments that demonstrate material deformation?

There are many fascinating experiments that showcase material deformation, such as testing the tensile strength of different materials, observing the effects of compression on a stack of paper, or measuring the elasticity of rubber bands. Another interesting experiment is the "egg drop challenge" where students design a contraption to protect an egg from breaking when dropped from a certain height.

How does material deformation affect the properties of a material?

Material deformation can significantly alter the physical and mechanical properties of a material. For example, stretching a material can increase its length and decrease its thickness, making it more ductile. On the other hand, compressing a material can make it stronger and more resistant to bending.

What are some current research topics related to material deformation?

Some current research topics in material deformation include studying the behavior of materials at the nanoscale, developing new materials with enhanced properties, and exploring the effects of extreme conditions such as high temperatures and pressures on material deformation. Other areas of interest include understanding the mechanisms of plastic deformation and investigating the role of microstructure in material deformation processes.

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