Multiple Analysis Modalities

GT STRUDL offers comprehensive frame and finite element analysis tools for the linear and nonlinear static and dynamic analysis of general 3D structural problems. You can take advantage of five member types and an extensive library of finite elements based on a broad range of:

  • Plane strain
  • Plane stress
  • Pure plate bending
  • Shell
  • Solid element formulations


Integration of Various Members and Analysis Modalities

Engineers can create structure models consisting of appropriate combinations of the various member and finite element types that best meet the analysis requirements of the engineer-analyst.

The breadth and depth of functionality enables engineers to analyze the broadest range of projects, from the simplest to the most complex structural models. Regardless of the project size, GT STRUDL produces accurate and reliable results, often in a fraction of the time of other programs.


Modeling and Analysis

Users benefit from a variety of modeling and analysis capabilities, including:

  • Linear and nonlinear static and dynamic analysis
  • High performance static and dynamic analysis equation solvers
  • Lanczos Eigen value solver, including the ability to specify computation convergence tolerances
  • Sturm sequence, error estimate, and two orthogonal checks
  • User-defined translation and rotation mass
  • Active/Inactive Mode Selection
  • Response Spectrum Analysis
  • RMS, PRMS, CQC, Absolute, Algebraic, Ten-Percent, Double Sum, and Grouping mode combination methods
  • Gupta and Lindley-Yow mode combination methodologies
  • Missing mass load generation
  • Broad range of user-specified damping properties, including Modal Damping, Composite Modal Damping, Rayleigh Damping, Damping Matrix, and Viscous Damper Elements
  • Composite modal damping ratio calculations
  • Time history dynamic analysis
  • Maximum response harmonic analysis for individual frequencies or for a range of frequencies (i.e. frequency sweep analysis)
  • Steady state dynamic analysis
  • User-controlled and variable integration time steps
  • Nonlinear Pushover Analysis
  • Nonlinear spring elements, support and member end springs, tension, and compression-only members, large sag catenary and parabolic cables
  • Nonlinear fiber element plastic hinge and plastic zone member models
  • Base Isolation friction-bearing damper element
  • Structural analysis database management
  • Automatic mesh generation in cartesian, cylindrical, and spherical reference frames
  • Scalable problem size modeling
  • Broad range of static and dynamic loading types
  • Integer and alphanumeric naming
  • Model error detection


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