P-52 adaptors

• 10 different adaptors were studied
• Complex Geometry: 5 main components + approximately 20 auxiliary components, like bolts
• Simulation to most critical loading operations (about 3 static studies)
• Geometric Idealization: simplification of CAD geometry, for usage in numerical simulation, done in ANSYS DesignModeler
• 5 Different material models, considering non-linear elastoplastic behavior. Large deflection effects are considered
• About 15 non-linear contacts between main components, including friction and separation
• About 20 linear bonded contacts, mostly for the bolt joints
• Static evaluation is performed according to criteria defined by API 2RD.
• A complex simulation, highly non-linear, executed directly in WorkBench

FATIGUE ANALYSIS INFORMATION

• Same geometric model as the static studies
• Contact non-linearities and large deflection are considered; material models are linear
• A pair of multi-step simulations is used for each studied slot.
  Represents maximum and minimum operation angles.
  Each step is related to a specific loading class.
• Results from ANSYS analysis are imported and processed in an external MathCAD routine.
  Two fatigue curves are solved (base material and welds)
  A results file is generated and imported back into ANSYS for damage plots.

 

P-52 ADAPTORS

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