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Check Module

The Check module is a very powerful part of Laminate Tools, offering quick and easy post-processing of FEA results, focusing on composite material aspects. It is used to:

  • Read Nastran-format results (*.op2, *.f06 files) for post-processing.
  • Read Ansys-format results (*.rst files) for post-processing.
  • Read Abaqus-format results (*.odb files) for post-processing.
  • Plot stresses per layer per loadcase, or group together layers and/or loadcases and process for worst values (enveloping).
  • Plot native Nastran failure index results, similarly to above, per layer or layer interface.
  • Create Failure Indices, Margins of Safety or Reserve Factors based on the imported FEA stresses, using a number of failure theories (including Custom user-defined equations), while the calculation can be based on either stress or strain.
  • Apply small corrections to the overall layup configuration and interactively display the redistributed layer stresses and failure calculations (approximate), without repeating the FEA solution.
  • Plot stresses, failure indices, etc, through the element thickness layer-by-layer, clearly highlighting the important stress components and troublespots.
  • Plot any results on the original global plies, this making sense of load paths and correctly interpreting optimisation strategies.
  • Export laminate and load information per element to LAP, for additional checks and swift experimentation for improving the stacking sequence before embarking on a fresh FE analysis.
  • Calculate interactively, and plot strains similarly to above.
  • Puck and LaRC02/05 failure theories added to interactive calculations.

In brief, the Check module enables designers to instantly comprehend the effects of any loadcase (or of multiple loadcases) on the laminated composite structure. The investigation can quickly narrow down to troublespots, identify the problem, quickly assess ways to correct it, and apply corrective action.

Similarly, overly conservative features can also be quickly identified and optimisation measures applied. The Check module saves team time and helps avoid design errors.

 

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