基于abaqus的工字钢柱的稳定性非线性分析

2..

2..

3

1.1 3.

1.2 3.

1.3 5.

1.3.1 5.

1.3.2

1

0

1.3

2.1- 1.3

2.2 1.4

1

6

Abaqus

0

1.1

abaqus

inp.fil

riks

inp.fil

1.2

abaqus

m

EditProMe

Name:Profile-1

Shape：I

bl:

b2:

tl:

Canc

el

Q345

2.1e11Pa3.45e8Pa0.3

15

1.2

1.2

1

m

A

/2m()

I

4

1y(m)

・2

iy(m)

12.0

0.00568

0.00001334

0.04846643

41.27

22.5

0.00568

0.00001334

0.04846643

51.58

33.0

0.00568

0.00001334

0.04846643

61.90

43.5

0.00568

0.00001334

0.04846643

72.21

54.0

0.00568

0.00001334

0.04846643

82.53

64.5

0.00568

0.00001334

0.04846643

92.85

75.0

0.00568

0.00001334

0.04846643

103.16

85.5

0.00568

0.00001334

0.04846643

113.48

96.0

0.00568

0.00001334

0.04846643

123.8

106.5

0.00568

0.00001334

0.04846643

134.11

117.0

0.00568

0.00001334

0.04846643

144.43

127.5

0.00568

0.00001334

0.04846643

154.75

138.0

0.00568

0.00001334

0.04846643

165.06

148.5

0.00568

0.00001334

0.04846643

175.38

159.0

0.00568

0.00001334

0.04846643

185.70

1.3

51.58

1.3.1

Part

Part2.5m

0,1.250-1.25

Property

EditMaterialX

Name:steel

Description:

Type:Isotropic||

EZ1Usetemperature-dependentdata

NumDeroffieldvariables:O(=^

Modulitimescale(forviscoelasticity):Long-term□□Nocompression

IiNotension

(—Deto-------------------------------------------------------------------------------

YounQ*smodulus

210000000000

Poisson*sRotio

0.3

Name:Profile-1

Shape：I

I-

Jt

3

1

T

b

—

Property

Assembly

Edit

Profile

Cancel

BeamSectionOrientation1.0,0.0,0.0

CreateInstan

Part-1

lInstanceType--------------------

■..-dependent(meshonpart)i

OIndependent(meshoninstance)

Note;To匚hangeaDependentinstancedmeshjyoumustedititspart'smesh.

□Auto-ofPsetfromotherinjtanres

[OK][Apply]Cancel

Step

buckle

Load

EcfitBoundaryCandftion

EditBoundaryCondition

x

x

Name:

Type?

Region:

BC-1

Di^pl-acement/Rotatian

Initial

(Pklwd)&

Name:

Type：

Step::

Region:

6C-2

Displacement/Rcitation

Initial

(PickacT)

CSVS:(GlobaJ[

LJ1

UE

0U3

UR1

UR2

UR3

$t

C5YS:(Global)

u

u

u

u

u

U

Mote:Thedisplacementvaluewillbemaintainedinsubsequentsteps.

[OK]nII

Note:ThedispLacementvaluewillbe

maintainedinsubsequentsteps.

Cancel

Mesh

INP

*nodefile

Job

buckle

1.3.2

Step

Riks

CreateStep

a

Proceduretyipe:General

Continue.-

a

modelEditKeywords

INP

*innperfectionJfile=buckleb3’step=1

tle-2

2Je-3

buckle1%1

Job

Riks

Visualization

-

Excel

2.1-

1

2

3

4

5

6

7

8

9

10

41.27

51.58

61.90

72.21

82.53

92.85

103.16

113.48

123.8

134.11

11

12

13

14

15

16

17

18

19

20

144.43

154.75

165.06

175.38

185.70

■-

■-

■-

■-

■-

2.00E+C6

1.80E-^S

1.60E+06

1.40E-HI6

1.20E-

+06

1.00E+O6

3.00E-+05

6.00E+C5

4.OOE-

+C5

2.00E+05

3,OOE-Ol4.00E-01

G.00EP1

5.00EF1

0.00E-K0O.OOEWLOOE-Ol2.00E-C1

Displacement(n)

*-

A=51,53

A=61,90

A=72.1

A=02.53

O.OOE+OOE-O2OOE-O3l*OOE-Ol4.060.-O0E1-O6OOE-OlL8OO-Oll

DisplaGement(m)

T-AS5-A

-103.16

k=113.40

A=123.80

A=134.11

Displacement(m)

2.2

4

5.1.2-1

C

GB50017-2003

GB50017-2003

<0.215

E

fy

=1-

2*3

2*3

0-215

2-2a

2.22-2

b

2-42-2

2.2

aa

a

a

b

4<1.05

c

4>1.05

1.216

4<1.05

d

4>1.05

0.986

0.965

0.906

0.152

0.300

0.595

0.868

1.375

0.41

0.65

0.302

0.432

0.915

0.73

1.35

a

a

aaa

1.0

-f

2.2.1

1

2

3

4

5

6

7

8

9

10

11

2.2.1

5%

2-2

2.2

Nu

3.45e8N/mm2

2.2.1

(N

41.27

51.58

61.9

72.21

82.53

92.85

103.16

113.48

123.8

134.11

144.43

1751250

1441980

1319400

1189110

1064460

923360

810330

707953

621427

547890

483799

A

①Nu

Afy

0.894

0.736

0.673

0.607

0.543

0.471

0.414

0.361

0.317

0.280

0.247

fy

Q345

0.825

0.765

0.694

0.617

0.539

0.467

0.403

0.349

0.303

0.266

0.23