Jounce bumper ("bump stop") compression...how far/what % of length can they compress?

[TiGeo]

Does anyone know a good rule of thumb to use for the total amount they can compress relative to their un-sprung length (as a %)?

 

[UG_Passat]

In case anyone wonders, it's bump stops he's talking about. They are made from a microcellular polyurethane material, but compressibility is not a material property that one would find on matweb.

 

[TiGeo]

In case anyone wonders, it's bump stops he's talking about. They are made from a microcellular polyurethane material, but compressibility is not a material property that one would find on matweb.

Thanks...title edited.

 

[MDN]

They can typically compress to around 30% of their static height, but that’s hard compression like pothole that launches that corner of the vehicle. Around 60% of static is where it goes from soft-ish to hard to slow down the crash into full bump

 

[TiGeo]

They can typically compress to around 30% of their static height, but that’s hard compression like pothole that launches that corner of the vehicle. Around 60% of static is where it goes from soft-ish to hard to slow down the crash into full bump

Thank you! I'm working on some suspension calcs and these are part of the travel as spring helpers so helps to know. I was using 30%.