Hysteresis in helical coils springs

  • #1
136
2

Main Question or Discussion Point

Hi,

Do helical springs have hysteresis. Say I do an exercise of plotting deformation Vs load curve of a helical spring, one way will be starting from load zero and increasing till the spring achieves solid length. The other way will be loading the spring till solid length and measuring deformation during releasing load progressively. Will both the methods give collinear lines?

If there is a hysteresis (of helical springs in specific), why does it occur?

Thanks.
 

Answers and Replies

  • #2
Swap123
Hysteresis occurs in ferromagnetic materials and ferroelectric materials, as well as in the deformation of some materials (such as rubber bands and shape-memory alloys) in response to a varying force.
so in all we can say that
"where there is deformation hysteresis is there"
 
  • #3
136
2
Thanks Swap.. But why exactly does this occur?
 
  • #4
Swap123
Ok
 
  • #5
Swap123
k.udhy first of all
as u said u practically performed this
in that case u might not get co-llinear lines because of strain hardening effect or because of irreversibility effect

but theorotically it will be co-linear
 
  • #6
Swap123
whatever total total energy absorbe durring loading(Resilience)=total energy release durring unloading
FOR THEROTICALLY
 
  • #7
Swap123
BUT ACTUALLY IT WILL NOT LIKE THAT
 
  • #8
2,017
85
It's not instant messaging.

Please use full sentences and don't post a message until you have completed it. You Don't have to click post where you would pause when speaking.
 

Related Threads on Hysteresis in helical coils springs

  • Last Post
Replies
1
Views
648
  • Last Post
Replies
4
Views
1K
  • Last Post
Replies
10
Views
4K
Replies
7
Views
2K
  • Last Post
Replies
1
Views
2K
Replies
2
Views
4K
  • Last Post
Replies
7
Views
582
Replies
6
Views
4K
Replies
6
Views
3K
Top