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Solving for maximum pressure

  1. Nov 28, 2011 #1
    I have a pressure vessel under some unknown internal pressure. The factor of safety is set at 2 and a yield strength for aluminum as 95 MPa. How do I go about solving for the maximum pressure the vessel can withstand? What I have been doing was going into Preprocessor/Material Props/Failure Criteria to Add/Edit. Then for stress in tension I set x, y, and z = to 47.5 MPa (half of the yield strength). I should note that the vessel is axisymmetric about the y-axis. Does Ansys perform an iterative procedure given some initial pressure value. In other word, does Ansys allow the setting of an initial pressure value and then it increases the pressure incrementally until the failure criteria is met? What is the correct way of doing this?
     
  2. jcsd
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