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What is StressCheck?

  • From the perspective of managers, StressCheck is the only FEA tool that supports simulation governance.

  • From the perspective of analysts, StressCheck is the only FEA tool that supports solution verification in practical engineering settings.

  • From the perspective of designers, StressCheck provides a framework for standardization of routine design procedures with guaranteed reliability.

"StressCheck®’s quality control features have given us the tool we need to perform detailed … bonded joint analysis with confidence that the results are accurate." "… StressCheck® has greatly improved our ability to accurately predict the fatigue life of joints with interference fit fasteners and cold worked holes" 

The Boeing Company


"This software tool … includes an FEM-based handbook format which allows non-experts to utilize models prepared by specialists."
Lockheed Martin

StressCheck® is a comprehensive finite element analysis software (FEA) tool with a fully integrated pre- and post-processor and a suite of analysis modules that support advanced engineering computations:

  • linear elasticity
  • multi-body contact
  • geometric and material nonlinearities
  • modal and buckling analysis
  • fracture mechanics parameters
  • laminate composite analysis
  • global-local analysis
  • residual stress analysis
  • steady state heat transfer (including temperature-dependent material properties and radiation)
  • ...and more

StressCheck has utility modules that offer functionality to import NASTRAN bulk data format, to import CAD models and to perform 2D and 3D automatic meshing. StressCheck provides industry-leading post processing options which include error estimators for the assessment of the quality of approximation: Global error estimation in energy norm and local error estimators for any data of engineering interest.  StressCheck is based on the p-version finite element method. Because the p-version is a more comprehensive implementation of the finite element method than the h-version,  StressCheck can be operated in the “h-mode”.     

 

Airframe Component Solid Mesh 








 

Convergence of Maximum von Mises Stress
 
Test Fixture Stress Contour
Industry Applications:

StressCheck® has a broad range of industrial applications, including but not limited to:
  • fatigue and fracture
  • residual stress
  • crack growth support
  • damage tolerance assessment
  • fastened and bonded joints
  • laminated composite analysis
  • detailed stress analysis
  • vibration and buckling analysis
 Key Features & Benefits:
  • Robust element formulation allows for elements with very large aspect ratios (200:1 or larger) which is essential for the ply-by-ply modeling of laminate composites and bonded composite joints.
  • High-order mapping makes it possible for the elements to accurately represent the shape of the part which is extremely valuable for accurate stress analysis of single parts and for multi-body contact situations such as multi-fastened joints.
  • Seamless transition between theories allows for a nonlinear analysis to be continued from a linear analysis, or to switch from linear elastic to buckling.
  • Multiple methods of importing loads/displacements from global models are available for global-local stress analysis.
  • A robust and flexible post-processing allows analysts to extract any data from the FE solution and assess the convergence of the results.  Results are not limited to nodes, as the solution is available everywhere in the model (mesh-independent).
  • Handbook framework for deployment of standard solutions with confirmation of reliability. This allows users the ability to create a library of parametric models to serve as repository for standardization and corporate design knowledge. FE-based handbook solutions eliminate the need of overly simplified assumptions typical of closed-form solutions found in classical handbooks, and can be customized to accurately describe real world problems.
  • Extraction of Fracture Mechanics parameters via highly reliable and efficient procedures: Stress intensity factors for through and corner cracks in isotropic materials and energy release rate components for cracks and delamination in composite materials.    
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