Recent content by musacci

  1. M

    Help with a three point bending test

    Hi Nidum, the core and sheath are bonded together
  2. M

    Help with a three point bending test

    Hi JBA, I thought of calculating an equivalent diameter for the core. In order to estimate this correctly I would need to calculate the spring constant of the softer material sheath and extrapolate the radius of a sheath of the harder material but with the same spring constant. Is this correct?
  3. M

    Help with a three point bending test

    thank you for your suggestion JBA, that would indeed be a good strategy, but unfortunately I cannot perform such experiment due to the impossibility of separating the sheath and core of my rods. I thought of the possibility of calculating an equivalent sheath thickness as if it was made of the...
  4. M

    Help with a three point bending test

    Hello everyone, I am trying to evaluate the spring constant of a coaxial polymer cylindrical fiber. This fiber has a stiff core and a more soft sheath. I know the geometry of the system and I know the Young's moduli of both components. I can find separate models for the core or for the sheath...
  5. M

    Is 0.27 nN/nm equal to 270N/km in unit conversion?

    Hi everyone, I'm having a little confusion here: I measured a value which is 0.27 nN/nm and I converted it's value as 0.27 N/m. Is this correct or should it be 0.27 nN/nm = 0.27*10^9 N/m Thanks for your help
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