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In: Mechanical Engineering

A urethane elastomer is selected as an artificial heart valve material. You wish to calculate the...

A urethane elastomer is selected as an artificial heart valve material. You wish to calculate the maximum theoretical strain (strain endurance limit) the material can withstand forever. This material has a threshold fracture resistance of 50 J/m^2 based upon its crosslink density, its intrinsic flaw size is 50 micron, and its tensile modulus is 1 MPa.

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