DoddRestrepo: Difference between revisions
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| '''$FSHI''' || Tensile stress at point on strain hardening curve corresponding to ESHI | | '''$FSHI''' || Tensile stress at point on strain hardening curve corresponding to ESHI | ||
|- | |- | ||
| '''$OmegaFac''' || Bauschinger curve | | '''$OmegaFac''' || Roundedness factor for Bauschinger curve in cycle reversals from the strain hardening curve. Range: [0.75, 1.15]. Largest value tends to near a bilinear Bauschinger curve. Default = 1.0. | ||
|- | |- | ||
|} | |} | ||
Note: Stresses and strains are defined in engineering terms, as they are reported in a tensile test. | |||
---- | ---- | ||
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'''References''': | '''References''': | ||
Code Developed by : <span style="color:blue"> L.L. Dodd & J. Restrepo </span> | Code Developed by : <span style="color:blue"> L.L. Dodd & J.I. Restrepo </span> | ||
[http://ascelibrary.org/sto/resource/1/jsendh/v121/i3/p433_s1?isAuthorized=no Dodd, L. L. and Restrepo-Posada, J. I. (1995). Model for Predicting Cyclic Behaviour of Reinforcing Steel. ASCE Journal of Structural Engineering, V.121, No 3, pp. 433-445.] | |||
Latest revision as of 17:16, 7 November 2011
- Command_Manual
- Tcl Commands
- Modeling_Commands
- model
- uniaxialMaterial
- ndMaterial
- frictionModel
- section
- geometricTransf
- element
- node
- sp commands
- mp commands
- timeSeries
- pattern
- mass
- block commands
- region
- rayleigh
- Analysis Commands
- Output Commands
- Misc Commands
- DataBase Commands
This command is used to construct a Dodd-Restrepo steel material
| uniaxialMaterial Dodd_Restrepo $tag $Fy $Fsu $ESH $ESU $Youngs $ESHI $FSHI <$OmegaFac> |
| $matTag | Integer tag identifying material |
| $Fy | Yield strength |
| $Fsu | Ultimate tensile strength (UTS) |
| $ESH | Tensile strain at initiation of strain hardening |
| $ESU | Tensile strain at the UTS |
| $Youngs | Modulus of elasticity |
| $ESHI | Tensile strain for a point on strain hardening curve, recommended range of values for ESHI: [ (ESU + 5*ESH)/6, (ESU + 3*ESH)/4] |
| $FSHI | Tensile stress at point on strain hardening curve corresponding to ESHI |
| $OmegaFac | Roundedness factor for Bauschinger curve in cycle reversals from the strain hardening curve. Range: [0.75, 1.15]. Largest value tends to near a bilinear Bauschinger curve. Default = 1.0. |
Note: Stresses and strains are defined in engineering terms, as they are reported in a tensile test.
Examples:
References:
Code Developed by : L.L. Dodd & J.I. Restrepo