Recent content by jrhickin

  1. J

    Finding strains and stresses on a hydraulic cylinder - NO external pressure?

    You don't? I thought that was what a or b was in it? The equation I have for Lame is a + b/r^2. How do you work it out? It's been a long while since I've had to use it, mind!
  2. J

    Finding strains and stresses on a hydraulic cylinder - NO external pressure?

    Yes, it is. It's standard steel, 200GPa for the Young's modulus if that's any help!
  3. J

    Finding strains and stresses on a hydraulic cylinder - NO external pressure?

    I'm running a test simulation on a Festo rig, with a hydraulic cylinder measuring 45mm internal diameter and 54mm external diameter. The testing requires an internal pressure of 60Bar with no external pressure applied. The strain gauge and setup I'm running it on I suspect to be faulty, and I...