Reinforcing Steel Material: Difference between revisions
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| style="background:yellow; color:black; | | style="background:yellow; color:black; " | '''uniaxialMaterial ReinforcingSteel $matTag $fy $fu $Es $Esh $esh $eult < -GABuck $lsr $beta $r $gama > < -DMBuck $lsr < $alpha >> < -CMFatigue $Cf $alpha $Cd > < -IsoHard <$a1 <$limit> > > ''' | ||
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| '''$beta''' || Amplification factor for the buckled stress strain curve. (see Figure 3) | | '''$beta''' || Amplification factor for the buckled stress strain curve. (see Figure 3) | ||
|- | |- | ||
| '''$r''' ||Buckling reduction factor | | '''$r''' ;align="top"||Buckling reduction factor | ||
r can be a real number between [0.0 and 1.0] | r can be a real number between [0.0 and 1.0] | ||
Revision as of 05:18, 7 December 2009
| uniaxialMaterial ReinforcingSteel $matTag $fy $fu $Es $Esh $esh $eult < -GABuck $lsr $beta $r $gama > < -DMBuck $lsr < $alpha >> < -CMFatigue $Cf $alpha $Cd > < -IsoHard <$a1 <$limit> > > |
- ----
| $matTag | integer tag identifying material |
| $matTag | unique material object integer tag |
| $fy | Yield stress in tension (see Figure 1) |
| $fu | Ultimate stress in tension |
| $Es | Initial elastic tangent |
| $Esh | Tangent at initial strain hardening |
| $esh | Strain corresponding to initial strain hardening |
| $eult | Strain at peak stress |
| -GABuck | Buckling Model Based on Gomes and Appleton (1997) |
| $lsr | Slenderness Ratio (see Figure 2) |
| $beta | Amplification factor for the buckled stress strain curve. (see Figure 3) |
| $r ;align="top" | Buckling reduction factor
r can be a real number between [0.0 and 1.0] r=1.0 full reduction (no buckling) r=0.0 no reduction 0.0<r<1.0 linear interpolation between buckled and unbuckled curves |
| $gamma | Buckling constant (see Figures 3 and 4) |