混凝土本构-Abaqus

C25混凝土单轴受压应力-应

C25混凝土单轴受拉应力-应

泊松比

0.2C15 2.20E+10剪切模量0.4E c C20 2.55E+10密度

2500kg/m 3

C25 2.80E+10C30 3.00E+10C35 3.15E+10C40 3.25E+10C45 3.35E+10C50 3.45E+10C55 3.55E+10C60 3.60E+10C65 3.65E+10C70 3.70E+10C75 3.75E+10C80

3.80E+10

Plastic-Damaged-Model 混凝土弹性模量 N/m 2

b c

0.70.70.70.70.70.70.70.70.70.70.70.70.70.70.70.70.70.70.70.70.70.70.70.70.70.70.70.70.70.70.70.70.70.70.70.70.70.70.70.70.7

应力-应变曲线

0.992549 2.9290450.913682 2.9701690.013942350.0138362750.70.992886 2.8589160.915654 2.8999470.014249980.0141464150.70.993349 2.7597390.918449

2.8006390.014711260.0146112340.70.993769 2.6671490.921065 2.7079250.015172320.0150756040.70.994028 2.6087680.922718 2.6494650.015479570.0153849470.7

受拉负应力受拉负应变b t

-0.42000467-1.27852E-050.1-0.83997668-2.55702E-050.1-1.25953801-3.83551E-050.1-1.67721857-5.11398E-050.1-2.08919605-6.39243E-050.1-2.48753161-7.67087E-050.1-2.85790145-8.94929E-050.1-3.1768241-0.0001022770.1-3.40838345-0.0001150610.1-3.50044748-0.0001278450.1-2.90146642-0.0001534120.1-1.96199682-0.0001917610.1-1.42714187-0.0002301080.1-1.20264341-0.0002556730.1-1.03932581-0.0002812370.1-0.86536453-0.0003195810.1-0.74374069-0.0003579240.1-0.681296-0.0003834850.1-0.62940388-0.0004090450.1-0.56616915-0.0004473850.1-0.51571721-0.0004857220.1-0.48737786-0.000511280.1-0.46238616-0.0005368370.1-0.42996599-0.0005751720.1-0.40238921-0.0006135050.1-0.38617447-0.000639060.1-0.37141521-0.0006646130.1-0.35159354-0.0007029430.1-0.33410265-0.0007412710.1-0.32353588-0.0007668220.1-0.31372989-0.0007923730.1-0.30027133-0.0008306980.1-0.28811257

-0.000869021

0.1

应力-应变曲线

0.9002720.2806360.0008950.000886-0.28063558-0.0008945690.1 0.9029070.2736070.000920.000911-0.2736067-0.0009201160.1 0.9065880.2638160.0009580.00095-0.26381606-0.0009584360.1 0.9099780.2548260.0009970.000989-0.25482593-0.0009967550.1 0.9120930.2492280.0010220.001014-0.24922817-0.0010222990.1 0.9141030.2439170.0010480.00104-0.24391724-0.0010478430.1 0.9169370.236440.0010860.001079-0.23644031-0.0010861580.1 0.9195750.2294930.0011240.001117-0.22949271-0.0011244720.1 0.9212350.2251270.001150.001143-0.22512675-0.0011500130.1 0.9228220.2209560.0011760.001169-0.22095598-0.0011755540.1 0.9250760.2150370.0012140.001207-0.21503686-0.0012138640.1 0.9271910.2094870.0012520.001246-0.20948691-0.0012521730.1 0.9285310.2059750.0012780.001271-0.20597456-0.0012777110.1

Dc(老外公式) 3.47622E-070.000957213Dc——ABAQUS中的损伤因子3.62117E-060.0050333431.38082E-050.0130324243.48261E-050.025341236.9703E-050.042074690.0001201030.063120890.0001862330.0881755350.0002670770.1167801230.00036080.1483651620.0004651740.1822955870.0007043680.258921315如右图所示：

0.0011036550.3834228880.0015076060.498370770.001770780.5645097990.002027980.6216341770.0024035330.6918515660.0027689620.7465733840.0030081160.776169989注意：

0.0032443730.801313455黄色部分为需要输入的数据

0.0035943260.832292625红色部分为ABAQUS中需要的数据（需要处理）0.0039400280.856944108蓝色部分为混规中的应力应变曲线

0.0041685930.8706256750.0043958870.882519560.004734810.897613920.005071710.910063550.0052953640.9171784530.005518360.9235026790.0058517720.9317413910.0061840560.9387420640.006405030.9428377290.006625610.9465423830.0069558150.9514678240.0072853020.9557505070.0075046010.9583015840.0077236360.960640360.0080517310.9637991320.008379320.9665950170.0085974540.9682838970.0088153930.9698485610.009141960.9719880410.00946814

0.973908459

非弹性应变

真实应力真实应变Dc(老外公式)——根据老外的公式计算的

塑性应变

true

σin

εtrue

εpl

εpl

εc

d Dc --=11c

true

true in E σεε-

=)

1(εσσ+=true )1ln(εε+=true in

c pl b εε*=c

c c pl c

true

c E b E D /)1/1(1σεσ+--

=

0.0096853920.975081403 0.0099024910.976177185 0.010*******.977690377 0.010*******.979064003 0.010*******.979910496

1.84802E-050.785916617

2.17494E-050.836787829 2.48242E-050.871322598

2.92109E-050.905390032

3.34313E-050.927237688 3.61856E-050.937723869

3.89064E-050.946017336

4.29411E-050.955559614 4.69351E-050.962688142

4.95808E-050.966488348

5.22159E-050.969710542

5.61522E-050.973700973

6.00731E-050.9769181 6.268E-050.978730149 6.52822E-050.980326472

6.91781E-050.982388265

7.30665E-050.98412697 7.56551E-050.985139662

7.82413E-050.986053443

8.21165E-050.987266014

8.59875E-050.988319236

8.8566E-050.98894661

9.1143E-050.989522068 9.50061E-050.990300184 9.88665E-050.990990289 0.0001014390.991408032 0.000104010.991795793 0.0001078650.99232741 0.0001117190.99280626 0.0001142870.993099646 0.0001168540.993374446 0.0001207040.993755201 0.0001245520.994102291 0.0001271170.994316956

（dc为混规中的损伤系数）

（σ、ε为工程应变，即名义应变，即实验测得数据）需要处理）