Exploring Hysteresis Friction: Compressibility & Forces

In summary, the conversation was about a project to explore the physics of hysteresis friction between two surfaces. One surface is flat with grooves while the other is made of an organic elastomeric compound. The goal is to calculate the additional forces needed to overcome the resistance caused by surface interruptions. The speaker is seeking advice to accelerate the discovery process and hopes to publish their results in a journal. However, they also acknowledge that the act of running the experiment may modify the surfaces and suggest considering statistical approaches for more stable results.
  • #1
SteveG_DPC
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Hi Guy's, I'm starting a project to explore the physics of hysteresis friction between two surfaces.
One flat metal surface is considered to have zero compressibility but does have grooves interrupting the sliding action.
The second material (organic elastomeric compound) also having a flat surface, with a certain degree of compressibility (yet to be determined) and a known coefficient of friction when applied to a flat uninterrupted surface.
I have plenty of data when applied to two flat uninterrupted surfaces.

It's the introduction or new consideration for surface interruptions that I'm exploring direction on. I understand there will be a combination of ploughing friction (shear) and hysteresis friction (deformation). I'm wishing to calculate the addition forces required to overcome this unknown resistance.
Any advise would be appreciated to accelerate the discovery process. Thank you.
 
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  • #2
Your results will most likely be highly suited to publication in the J. of Nonreproducible Results.

The very act of running the experiment in which you make the measurements will modify the surfaces, so that when you try to repeat a measurement, it will be a different system every time. You had better think about statistical approaches and hope that you can get some stability in your results.
 
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1. What is hysteresis friction?

Hysteresis friction refers to the phenomenon where the friction between two surfaces is dependent on their relative motion history. This means that the amount of friction between two surfaces will be different depending on whether they are sliding against each other or at rest.

2. How does compressibility affect hysteresis friction?

Compressibility refers to the ability of a material to be compressed or squeezed. In the context of hysteresis friction, compressibility can affect the amount of friction between two surfaces by changing the contact area and the surface roughness. This can result in a change in the coefficient of friction and contribute to hysteresis friction.

3. What are the forces involved in hysteresis friction?

The main forces involved in hysteresis friction are adhesion and deformation. Adhesion is the force that holds two surfaces together, while deformation is the change in shape or size of a material when subjected to an external force. These forces, along with the compressive force, contribute to the hysteresis friction between two surfaces.

4. How is hysteresis friction measured?

Hysteresis friction can be measured using various methods such as tribometers, which measure the frictional force between two surfaces in motion, or surface profilometers, which measure the surface roughness of materials. These measurements can help in understanding the relationship between hysteresis friction and compressibility.

5. What are the real-world applications of studying hysteresis friction?

Studying hysteresis friction is important in various industries, including automotive and aerospace, where minimizing friction is crucial for efficiency and performance. It is also relevant in fields such as material science and engineering, where understanding the behavior of materials under different compressive forces is essential for designing new products. Moreover, hysteresis friction can also have implications in the medical field, particularly in the study of joint mechanics and joint diseases.

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