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How do 'buckling transitions' explain the noise you hear when plastic and paper and metal foil are crumpled up?
Buckling transitions is the term we apply to what happens when we crumple a piece of paper. Where shall we start? Well, let's induce a curvature energy in the presence of a topological constraint. When we crush foil or paper or plastic, we are putting energy into a material and causing parts of the microstructure to fail and/or break. There are loose "connections" between molecules that give the material its strength. The better the interconnections and the more "engineered" the shape of the microstructure, the stronger the material. When we crumple the material up, a bunch of these connections or microsturctural components are broken. If fact, there is wholesale destruction in lots of areas. And with the breaking of the connections comes the "rebound" of the other parts of the microstructure in the area of the break. If we take a piece of uncooked spaghetti and bend it far enough, it snaps. We've applied energy to it and it broke, releasing some of that energy. And the pieces that are left snap back into a shape. Scale that idea waaaay down. Throughout the breakage event there is movement that creates vibration. Vibration is mechanical energy. Sound. We are hearing the little vibrations of zillions of failures in the microstructure and "rebounds" when "broken connections" in the microstructure of the material occur. Hope that makes sense. There is a whole field of physics that deals with elasticity and stress on films of material like foil and paper. It can be interesting, but be warned that a lot of statistical physics is used to "map" the activity. Naturally if a student is interested in physics, that student would be well advised to roll up the sleeves and grab all the mathematics that can be had. Math is the prime mover in physics and engineering disciplines. Who'd get on a commercial airplane if it wasn't?
What else can I help you with?
What crumpled a plastic bubble in a syringe when you apply force to the plunger?
The mass in the syringe, as you push down the plunger.
What is the different between local buckling and lateral buckling?
Main difference between local and overall buckling related to distortion of the overall system geometry. Local buckling does not cause distortion of the overall geometry, usually local buckling seems on short (channel or angle) compression members (excessive loaded and material related problem). On the other hand overall buckling causes distortion, we can give example as plastic ruler compressed by fingers . There is equation on buckling developed by Euler.
What is section of classification of the steel?
Section of classification of steel are Plastic, Compact, Semi compact and slender. Also steel undergoes a process called local buckling.
How do i Making plastic less crinkly?
To make plastic less crinkly, you can try gently heating it with a hairdryer or heat gun, being careful not to melt it. Alternatively, placing the plastic in a warm environment, like a sunny spot, can help soften it. For some types of plastic, you can also use a weight to flatten it while it cools. If the crinkles are due to storage, ensure that plastic items are stored flat and not crumpled.
What is impact of consuming plastic material on health of domestic animals explain in brief?
impact of consuming plastic material on the health of animals
When plastic melts what does it turn into?
When plastic melts, it transitions from a solid state to a viscous, liquid form. This process occurs when heat breaks down the polymer chains in the plastic, allowing them to flow. Upon cooling, the liquid can solidify again, returning to a solid state. Depending on the type of plastic, the melted form can vary in consistency and properties.
Why the color of crumpled plastic white?
The color of crumpled plastic is white because it reflects light of all wavelengths in the visable range. Light is reflected from a reflective surface at approximately 2 precent of the total light shining on it. When there is a second reflective surface beneath it light is also reflected but if both photons are in the same phase then the square of the total from both surfaces is reflested back ie. 16 percent, if they are out of phase they cancel out and no light is reflected. So when several reflective surfaces are layerd most of the light is reflected. If it is illuminated by white light then white light will be reflected.
What is the glass transition temperature of pet plastic?
The glass transition temperature of PET plastic is typically around 70-80 degrees Celsius. This is the temperature at which the material transitions from a glassy, rigid state to a rubbery, more flexible state.
Can you explain the reasons for a change from items made from plastic that were once metal?
If something was originally made from metal, then it started to be produced in plastic. It could be because of the price for the metal, that it takes less time to make the product in plastic form, or the product performs better in plastic.
What has the author Richard Riff written?
Richard Riff has written: 'Analysis of large, non-isothermal elastic-visco-plastic deformations' -- subject(s): Kinematics, Nonlinearity, Nonisothermal processes, Elastic deformation, Inelastic stress, Temperature gradients 'The dynamic aspects of thermo-elasto-viscoplastic snap-through and creep buckling phenomena' -- subject(s): Dynamic response, Arches, Buckling, Shells (Structural forms), Mathematical models, Elastoplasticity, Creep properties
What is a suitable plastic for making an ice scraper and explain why that plastic you choice is good or suitable?
you need to make some milkos by staying on the computer for a few hours then feed them to your babies
Use the ideas of virchow to explain why plastic and stuffed animals are not alive?
Based on Virchow's part of the cell theory he contributed, plastic plants and stuffed animals are not produced from other cells.
