OpenSees.exe User Requirements: Difference between revisions

From OpenSeesWiki
Jump to navigation Jump to search
No edit summary
No edit summary
 
(2 intermediate revisions by the same user not shown)
(No difference)

Latest revision as of 21:49, 30 November 2009

Implemented Requirements

Element





Section





uniaxialMaterial





nDMaterial






Output

Recorder





Real-Time Output





Model Quantities
Response Quantities
Basic Visualization
  • Display Recorder
  • Plot Recorder
  • playback Command
Domain Data
  • Print Command
    • print element data
    • print node data
    • print all domain-object data

Other

Under-Development Requirements

Element

  • 2D/3D Wall Elements
  • 3d nonlinear frame element with full interaction
    • axial
    • flexure
    • torsion
    • shear

Section

Material

  • Improved concrete materials
  • Improved reinforcing-steel materials

Output

Other

To-Be-Developed Requirements

Element

  • Buckling-Brace Elements
  • Flexible Diaphragm
  • 2D & 3D Isolators
  • 2d Timoshenko beam element
  • 3d frame element with bond-slip of reinforcing steel
  • 3d frame element with slip between components, e.g. composite beam, composite column
  • 3d concentrated plasticity element with return map algorithm
  • 2d SIZE (spreading inelastic zone) beam element
  • Nonlinear geometry developments
    • Extension of corotational theory to membranes and shells
    • Reformulation of 3d frame nonlinear geometry such that any element can take advantage of nonlinear transformation (currently not the case); quaternions vs. rotation nodal variables require either a change in global solution strategy or the mapping back and forth between quaternions and node rotations.
  • The following elements include linear or corotational geometry for membranes and shells under large displacements
    • 3 to 6 node triangle
    • 4 to 9 node quad
    • 4 node quad with incompatible modes
    • 4 to 9 node RC panel (quad)
    • 4 to 9 node Mindlin layer plate/shell
    • 4 to 9 node Mindlin RC layer plate/shell
    • Discrete Kirchoff triangle plate/shell element

Section

  • 2d normal and shear stress interaction

Material

  • 3d J2 plasticity with kinematic and isotropic hardening
  • 3d plastic-damage concrete constitutive model Lee-Fenves

Output

  • Specify recorder to save only every Nth timestep (specifying dT only works for time-history analyses)
  • EnvelopeDrift Node recorder

Other

  • improved domain-data output

Continual-Development Requirements

Documentation

  • OpenSeesWiki
  • Validation with experimental data
  • Materials
    • Graphical demonstration of input-arguments
  • Examples manual
    • Practical Examples
  • Theoretical Background



Return to OpenSees User-Requirements Document