Impact force reduction after passing through a medium

  • #1
boyboy400
9
0
TL;DR Summary
A car hits a mass of soil with the impact force of F. We know properties of the mass and its dimension. What is the force felt at the other side of the mass?
Hello,

Please see the attached sketch. A car hits a mass of soil and applies the impact force of F. The force/wave travels the distance L through the mass at the end of which there is a wall so I think the force attenuates. Assume we have all the properties of the mass. My question is, what would be the attenuated/decreased F felt by the wall? I know this can be modeled with FEM but I have a feeling there should be an analytical solution based on physics for it too. Would really appreciate any insight.
 

Attachments

  • Berm.jpg
    Berm.jpg
    14.5 KB · Views: 72
Engineering news on Phys.org
  • #2
Can you say what the context of the question is?
 
  • #3
Not sure what you mean by the context. Let's say you want to design the wall to withstand the force but you know the force felt by the wall will be reduced due to existence of the mass of soil.
 
  • #4
Why are you anticipating a car running into your wall so that you need to add protection?
 
  • #5
This looks like some sort of accident investigation. Please be aware that we can't provide any legal advice in situations like this.

Consequently, this thread is now closed.
 

Related to Impact force reduction after passing through a medium

What is impact force reduction?

Impact force reduction refers to the decrease in the force exerted by an object when it strikes another object after passing through a medium. This reduction occurs due to the energy lost in the medium, which can be due to absorption, scattering, or other interactions within the medium.

How does the type of medium affect impact force reduction?

The type of medium significantly affects impact force reduction. Different materials have varying densities, viscosities, and elastic properties, all of which influence how much energy is absorbed or dissipated. For example, a dense medium like water will reduce impact force more effectively than a less dense medium like air.

What role does the thickness of the medium play in reducing impact force?

The thickness of the medium plays a crucial role in reducing impact force. A thicker medium provides more material for the impact force to interact with, leading to greater energy dissipation and absorption. Therefore, the thicker the medium, the greater the reduction in impact force.

Can the velocity of the object affect impact force reduction?

Yes, the velocity of the object can affect impact force reduction. Higher velocities generally lead to greater impact forces, but they also increase the interaction between the object and the medium. This can result in more energy being absorbed or dissipated by the medium, thereby reducing the impact force more effectively.

What are some practical applications of impact force reduction through a medium?

Practical applications of impact force reduction through a medium include vehicle crash safety features like airbags, which use gas as a medium to reduce impact forces on passengers. Another example is sports equipment, such as helmets and padding, which use various materials to dissipate impact energy and protect athletes. Additionally, engineering structures like barriers and protective coatings often use layers of material to reduce the impact force from collisions or projectiles.

Similar threads

Jackhammer on Vehicle Suspension, Unsprung Mass, Tire patch load
Replies
13
Views
2K
I How to Calculate force exerted on a falling body?
Replies
12
Views
2K
I Help to model transmission of forces through a medium
Replies
12
Views
959
I Understanding Ultrasound Attenuation and Reflection in Aluminum Sheets
Replies
15
Views
804
How to work out this impact force
Replies
17
Views
1K
Converting energy to force at impact
Replies
2
Views
1K
I How energy of light is conserved when passing through medium
Replies
3
Views
2K
Designing Impact Force Test Rig for Material Strength Testing
Replies
16
Views
2K
Three Car Collision - Can physics help clarify twin impact?
Replies
3
Views
15K
I Newton's second law and pressure wave propagation
Replies
27
Views
2K

Hot Threads

Recent Insights

Back
Top