[精彩]ls-dyna资料模型及参数.docx

目录

1基本的状态方程 2

1.1EOS_JWL 2

2.2EOSGRUNEISEN 2

2.3EOS_LINEAR_POLYNOMIAL 3

2.材料模型 3

2.1MAT_HIGH_EXPLOSIVE_BURN 3

RDX 5

HMX 5

TNT 5

1.2MAT_NULL 6

空气 6

水 7

1.3MATJOHNSONCOOK 7

紫铜 8

钢 8

1.4MAT_PLASTIC_KINEMATIC 9

钢 10

高导无氧铜 10

土壤 10

1.5MAT_STEINBERG 10

高导无氧铜 12

1.6MAT_JOHNSON_HOLMQUIST_CERAMICS 12

B4C陶瓷 14

1.7MATJOHNSONHOLMQUISTCONCRETE 14

混凝土 14

3其它材料参数 15

LY12CZ铝合金 15

主要材料模型及参数

1基本的状态方程

1.1EOS_JWL

#135

#

Vatihte

EOD

A

H

风1

M1

FF

E

vo

Ty=

1

F

干

F

P

F

F

F

Remarks

TheJWLequitionofstatedefinesthepressureas

andisusuallynsedfordetonationproductsofhighexplosivex.

2.2EOS_GRUNEISEN

244S省T

VattNe

to[D

C

Si

2

$3

GAHAO

A

Ea

1yie

F

P

F

F

F

P

Caid1

Vatb

Vo

Tyr

F

Remarkst

TheGruoeiseneqationofsatewabcuhieshockvelocity-particleveloctydefimespressure

fotcompressedmaterialsas

antfurexpandedmaterialsas

P=AC'μ+(X%+μ)E

whereCistheintercepeoftheyseYpcurve:Si.Sz.undSyarethecoefficientsoftheslopeofthee

Vpurve:ToistheGruneisengummatuisthefirterdetvolumecorrecion1o

2.3EOS_LINEAR_POLYNOMIAL

(对EOS_GRUNEISEN

1Cand

1

进行线性化)

12

J

1

5

6

Veiahls

EOSD

C0

Cl

C

C3

C4

C5

Cn

Trp

1

F

扩

节

F

F

Canl2

Vataht

BP

w

7yp

F

Remarks

1.Thelinearpolynomialequationofstateislinearinintcmalenergy.Thepressureisgivenby;

P=C+Cμ+Gμ2+Gμ1+(G+Cμ+C,μ)E,

wheretermsC2u?andCon2aresetozeroirfmditheratieofcurent

densitytoinitialdeasity.

2.材料模型

2.1MAT_HIGH_EXPLOSIVE_BURN

CanlParnat

Cad12J45