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Thread: Urethane, 90 Duro strain energy

  1. #1
    Associate Engineer
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    Urethane, 90 Duro strain energy

    Hey guys,

    I need to know how much strain energy a rectangular piece of urethane has when compressed... For discussion purposes, say I have a 150mm x 200mm x 25thk block of 90 durometer urethane and I compress it 2.5m... How much force will this take? I've never calculated with Urethane before

    Thanks

  2. #2
    Technical Fellow Kelly_Bramble's Avatar
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    Strain is defined by the following webpage:

    http://www.engineersedge.com/materia...nce/strain.htm

    strain energy is the energy stored by a system undergoing deformation. When the load is removed, strain energy is:



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  3. #3
    Associate Engineer
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    That would work for me if I knew the modulus, does urethane have a set modulus "E"?

  4. #4
    Technical Fellow Kelly_Bramble's Avatar
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    Quote Originally Posted by chrisjk383 View Post
    That would work for me if I knew the modulus, does urethane have a set modulus "E"?
    Yes... Figure out which particular Urethane you want and search up the specific Modulus of Elasticity.

    Something like this:
    mechanprop.pdf
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