DDM-Based Response Sensitivity Computation Tcl Commands:

Created by: Quan Gu(UCSD),Joel P. Conte(UCSD), Michele Barbato(LSU), Yong Li(UCSD)

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Return to Sensitivity Analysis User Page

• Sensitivity_Command_Manual
  • General Commands
    • reliability
    • parameter
    • addToParameter
    • updateParameter
    • sensitivityIntegrator
    • sensitivityAlgorithm
    • recorder
  • Material Commands
    • uniaxialMaterial
    • nDmaterial
  • Section Commands
    • Fiber
    • Elastic
    • Aggregator
  • Element Commands
    • dispBeamColumnWithSensitivity
    • quadWithSensitivity
    • bbarBrickWithSensitivity
  • Constraint Commands
    • Transformation

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Introduction

The following Analysis commands are added to the interpreter to create the Analysis and perform the analysis:

General commands

reliability Command

This command creates the reliability domain in which the sensitivity, reliability and optimization components are kept. This ::: reliability domain is parallel to the finite element (FE) domain in OpenSees. Currently, the commands for stand-alone sensitivity

analysis (e.g., sensitivityIntegrator, sensitivityAlgorithm) are set in the reliability domain only and, thus, the ‘reliability’

command must be used before any stand-alone sensitivity analysis.

parameter Command

In DDM-based FE response sensitivity analysis, the sensitivity parameters can be material, geometry or discrete loading ::: ::: parameters.

Material Commands

UniaxialMaterial Commands

Several uniaxial materials are available for DDM-based FE response sensitivity computation.

SteelMP Command

This command is used to construct a uniaxial Menegotto-Pinto steel material object.

SmootPSConcrete Command

This command is used to construct a uniaxial smoothed Popovics-Saenz concrete material object.