在LSPrepost建立sph模型的详细过程

间轴坐标。如果设置为

3

，单元有一个综合点， 则三个结果将相同。如果值超过

3

，

则 在单元中的第一个

MAXINT

综合点将会被输出。

如果单元拥有一系列综合点，

而

没有被设置成

3

，则你将无法获得中间表面结果值，详见下面的附注。

STRFLG

Set to 1 to dump strain tensors for solid, shell and thick shell

elements

for

plotting

by

LS- PREPOST

and

ASCII

file

ELOUT.

For

shell

and

thick

shell elements two tensors are written, one at the innermost and one at the

outermost integration point. For solid elements a single strain tensor is

written.

SIGFLG

Flag for including stress tensor in the shell LS-DYNA database:

: include (default),

: exclude.

EPSFLG

Flag

for

including

the

effective

plastic

strains

in

the

shell

LS-DYNA

database:

: include (default),

: exclude.

RLTFLG

Flag for including stress resultants in the shell LS-DYNA database:

: include (default),

: exclude.

ENGFLG

Flag

for

including

shell

internal

energy

density

and

thickness

in

the

LSDYNA database:

: include (default),

: exclude.

CMPFLG

Orthotropic

and

anisotropic

material

stress

and

strain

output

in

local

material coordinate system for solids, shells and thick shells.

: global,

: local.

IEVERP

Every

plot

state

for

“d3plot”

database

is

written

to

a

separate

file.

This option will limit the database to 1000 states:

: more than one state can be on each plotfile,

: one state only on each plotfile.

BEAMIP

Number of beam integration points for output. This option does not

apply to beams that use a resultant formulation.

DCOMP

Data compression to eliminate rigid body data:

: off (default), no rigid body data compression,

: on, rigid body data compression active,

: off, no rigid body data compression, but nodal velocities and

accelerations are eliminated from the database.

: on, rigid body data compression active and nodal velocities and

accelerations are eliminated from the database.

SHGE

Output shell hourglass energy density:

: off (default), no hourglass energy written,

: on.

STSSZ

Output shell element time step, mass, or added mass:

: off (default),

: output time step size,

: output mass, added mass, or time step size. See remark 3 below.

N3THDT

Material energy write option for D3THDT database

: off, energy is NOT written to D3THDT database,

: on (default), energy is written to D3THDT database.

IALEMAT

Output solid part ID list containing ale materials.

: on (default)

NINTSLD

Number of solid element integration points written to the LS-DYNA

database.

The

default

value

is

1.

For

solids

with

multiple

integration

points

NINTSLD may be set to 8. Currently, no other

values for NINTSLD are allowed.

For solids with multiple integration points, an average value is output if

NINTSLD is set to 1.

PKP_SEN

Flag

to

output

the

peak

pressure

and

surface

energy

computed

by

each

contact interface into the interface force database. To obtain the surface

energy,

FRCENG,

must

be

sent

to

1

on

the

control

contact

card.

When

PKP_SEN=1,

it

is

possible

to

identify

the

energies

generated

on

the

upper

and

lower

shell

surfaces, which is important in metal forming appli- cations. This data is

mapped after each H-adaptive remeshing.

: No data is written

: Output the peak pressures and surface energy by contact interface

SCLP

A scaling parameter used in the computation of the peak pressure. This

parameter is generally set to unity (the default), but it must be greater

than 0.

MSSCL

Output nodal information related to mass scaling into the D3PLOT

database. This option can be activated if and only if DT2MS < , see control

card *CONTROL_TIMESTEP. This option is available starting with the second

release of Version 971.

: No data is written

: Output incremental nodal mass

: Output percentage increase in nodal mass

THERM

Output

of thermal

data to d3plot.

The

use

of this option

(THERM>0) may

make the database incompatible with other 3

rd

party software.

: (default) output temperature

: output temperature

: output temperature and flux

:

output

temperature,

flux,

and

shell

bottom

and

top

surface

temperature

Remarks:

1. If MAXINT is set to 3 then mid-surface, inner-surface and outer-surface

stresses are output at the center of the element to the LS-DYNA database.

For an even number of integration points, the points closest to the center

are

averaged

to

obtain

the

midsurface

values.

If

multiple

integration

points

are used in the shell plane, the stresses at the center of the element are

found

by

computing

the

average

of

these

points.

For

MAXINT

equal

to

3

LS-DYNA

assumes

that

the

data

for

the

user

defined

integration

rules

are

ordered

from

bottom to

top even

if this

is not

the case.

If MAXINT

is not

equal to

3, then

the stresses at the center of the element are output in the order that they

are stored for the selected integration rule. If multiple points are used

in plane the stresses are first averaged.

2. Beam stresses are output to the LS- DYNA database if and only if BEAMIP

is greater than

zero.

In

this

latter

case

the

data

that

is

output

is

written

in

the

same

order

that the integration points are defined. The data at each integration point

consists of the followingfive values for elastic-plastic Hughes-Liu beams:

the normal stress, ?

rr

; the transverse shear stresses, ?

rs

and ?

tr

; the

effective

plastic

strain,

and

the

axial

strain

which

is

logarithmic.

For

beams

that are not elastic- plastic, the first history variable, if any, is output

instead of the plastic strain. For the beam elements of Belytschko and his

coworkers, the transverse shear stress components are not used in the

formulation. No data is output for the Belytschko-Schwer resultant beam.

3.

If

mass

scaling

is

active,

the

output

of

the

time

step

size

reveals

little

information about the calculation. If global mass scaling is used for a

constant time step, the total element mass is output; however, if the mass

is

increased

so

that

a

minimum

time

step

size

is

maintained

(DT2MS

is

negative),

the added mass is output. Also, see the control card *CONTROL _TIMESTEP.

*DATABAS E_BINARY_D3PLOT

结果输出时间步长

数据库

输出时间

步长

DT

Time interval between outputs.

CYCL

Output interval in time steps (a time step is a cycle). For the D3DRFL

file a positive

number 'n' will

cause plot

dumps

to be written at

every

n'th

convergence check interval speci- fied on the *CONTROL_DYNAMIC_RELAXATION

card.

NR

Number of Running Restart Files, RUNRSF, written in a cyclical fashion.

The default number is one, . the same file is overwritten each time.

LCDT

Optional load curve ID specifying time interval between dumps. This

option is only available for the D3PLOT, D3PART, D3THDT and INTFOR files.

BEAM

Option flag for *DATABASE_BINARY_D3PLOT or D3PART.

:

Discrete

spring

and

damper

elements

are

added

to

the

D3PLOT

or

D3PART

database

where

they

are

display

as

beam

elements.

The

element

global

X,

global

Y, global Z and resultant forces are written to the database,

: No discrete spring and damper elements are added to the D3PLOT or

D3PART database. This option is useful when translating old LS-DYNA input