Finite Element Analysis

The Future is Now

Level 3 Fitness-for-Service assessments may require Finite Element Analysis (FEA) to conduct in-depth studies of pressure, contact forces, vibration loading, thermal loading (heat flux), and fatigue. At CANEIL, we utilize SOLIDWORKS Premium to model and assess pressure vessels, tanks, and other equipment with complex geometries. For piping systems and pipelines, we rely on CAESAR II, a powerful tool that allows us to accurately analyze and evaluate the structural integrity of these systems. Through these advanced modeling techniques, we provide precise and reliable assessments to ensure the continued safety and performance of critical assets.

General Steps we Follow

  • The problem is evaluated to specify static and dynamic conditions, and generate engineering assumptions.
  • Finite Element Models are simplified to reduce computing time and increase efficiency. Partial models may be used when symmetry is present, ensuring faster and accurate analysis.
  • Loads and boundary conditions are specified. Combined loading conditions are accounted for using rules from ASCE 7-10 and NBCC for seismic, dead, and live loads. ASME Sec VIII Div. 2 is referenced for fatigue and cyclic stress requirements.
  • Mesh size and element types are defined based on curvature and material thickness. Areas with structural discontinuities and stress concentrations are refined iteratively with successive simulations. Additionally, maximum element aspect ratios are checked to ensure optimal mesh quality.
  • Analysis results are accepted on the basis of mesh convergence and grid independence. Through the use of the h-refinement method which involves decreasing element sizes to achieve greater accuracy
  • For pressure equipment design submissions in Alberta, AB-520 is referenced to ensure fulfillment of ABSA requirements for application of FEA in Fitness-For-Service assessments.

CANEIL personnel have performed a wide range of Fitness-For-Service projects. The following is a summary of just a few of the projects our team has undertaken: