WebinarDemo Progressive Ply Failure Analysis

7/17/2019 WebinarDemo Progressive Ply Failure Analysis

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1 Advanced Composites - Progressive Ply Failure Analysis

Webinar Demo

Progressive Failure Analysis







Objectives

• Objectives

– Perform progressive failure analysis on a composite plate

– !efine boundary conditions and loads

– !efine ply material properties and Puc" failure criterion

– !efine composite property

– #etup $mplicit %onlinear analysis• #oft&are 'ersion

– Patran 2(121

– )#C %astran 2(121

• *e+uired File,

– tensile_coupon.xmt



Advanced Composites - Progressive Ply Failure Analysis

Problem Description

• A 1.-layer composite plate &it/ initial defect 0a /ole is under tensile

test

• /e left side is fied and pulling on t/e rig/t side



. Advanced Composites - Progressive Ply Failure Analysis

Suggested Exercise Steps

1 $mport parasolid geometry

2 Create a finite element mes/

3 4+uivalence t/e mes/

Create a *542

. Apply boundary conditions to t/e model

6 !efine ply material and failure criterion7 !efine composite material

8 !efine element property

9 #etup analysis and edit input dec"

1( #ubmit t/e model to )! %astran for analysis

11 Attac/ results File12 Post-process results in Patran




Step 1. reate a !e" Database

Create a ne& database called

tensile#coupon,

a Open File )enu and clic" !e".

b 4nter tensile#coupon as t/e

File name

c Clic" O$

d #elect De%ault for olerance

e #elect &D !astran as t/e

Analysis Code

f #elect Structural as t/e

Analysis ype

g Clic" O$

b c

d

e

f

g

a


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Step '. (mport )eometry

$mport :eometry,

a #elect File, (mport

b #elect

tensile;couponmt

c Clic" Applyd /e import summary

s/o&s 6 surfaces are

imported.

e Clic" O$

a b

c

e

d



Step *. reate a Finite Element &es+

Create a surface mes/,

a #elect Elements, reate -

&es+ - Sur%ace

b #elect uad as t/e 4lem

#/ape

c Pic" all / sur%aces.

d 4nter 0.1 for :lobal 4dge

<engt/

e Clic" Apply

b

c

d

a

e



Step . E2uivalence &es+

4+uivalence mes/,

a #elect &es+ing, E2uivalence - All - 3oleranceube

b Clic" Apply

a

b


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Step 4. reate a !ode %or t+e 56E'

Create a node,

a #elect )eometry, reate - Point - 789

b 4nter point coordinate :;0.<4;0=

c Clic" Apply

d #elect &es+ing, reate - !ode - Edit

e urn off Auto Execute

f Pic" t/e ne&ly created point

g Clic" Apply

a

b

c

e

f

f

g

d



Step /. reate a 56E'

Create a *542,

a #elect Elements, reate - &P- 56E'

b Clic" on De%ine 3erms

c #elect all / DOFs

d #elect Dependent nodes

e #elect (ndependent node

f Clic" ancel

g Clic" Apply

a

b

c

e1

e2

f

g

d1

d2



Step <. reate 6oundary onditions

Create 5C,

a #elect >oads-6s, reate -

Displacement- !odal

b 4nter ne& set name %ixed

c Clic" on (nput Data

d 4nter 3ranslations ?0 0 0@

e Clic" O$

f Clic" on Select Application 5egion

g #elect FE&

/ Pic" t/e nodes at t/e left side

i Clic" Add

j Clic" O$

" Clic" Apply

a

b

c

d

e

f

g

hi

j

k

h



Step <. reate 6oundary onditions ont.B

Create 5C,

a #elect >oads-6s, reate -

Displacement- !odal

b 4nter ne& set name pull

c Clic" on (nput Data

d 4nter 3ranslations ?0.' 0 0@

e Clic" O$

f Clic" on Select Application 5egion

g #elect FE&

/ Pic" t/e independent node of t/e *542

i Clic" Add

j Clic" O$

" Clic" Apply

a

b

c

d

e

f

g

h

i

j

k

h



Step C. De%ine Ply &aterial Properties

!efine Ply )aterial,

a #elect Properties, reate -

'd Ort+otropic - &anual

(nput

b 4nter ply for )aterial %ame

c Clic" on (nput Properties

d #elect >inear Elastice 4nter 1<E/; 1.E/; 0.*;

4E; 4E; 4E as s/o&n

f Clic" O$

g Clic" Apply

/ Clic" on (nput Properties

again

i #elect

Failure1SO>00-/00B -Puc - )radual

j 4nter 'E4; 1E4; 14E*; *0E*;

14E*; 0.*4; 0.*4; 0.'<; 0.'<;

0.01 as s/o&n

" Clic" O$

l Clic" Apply again

a

b

c

d

e

h

f

g

i

j

k l


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b

cd

e

g

f

Step . De%ine omposite &aterial Properties

!efine composite )aterialProperty,

a select Properties, reate-omposite- >aminate

b 4nter laminate for )aterial%ame

c Clic" ply under 4isting

)aterials 1. times to ma"e1. plies

d Clic" on ply 1=s empty3+icness cell

e 4nter 0.01 in t/e #et/ic"ness bo for alllayers

f Clic" on ply 1=s emptyOrientation cell

g 4nter t/e follo&ing into t/eOrientations bo,

4 G4 4 G4 0 4G4 0 G4 4 0 G4 4 G44 to define orientations forall layers

/ Clic" Apply

h

a



Step 10. De%ine Element Property

!efine element property,

a From t/e Properties menu>

select reate - 'D - S+ell

b 4nter plate for Property #et

%ame

c #elect >aminate for Options

d Clic" (nput Properties

e clic" on t/e &at Prop !ame

icon and select laminate

material

f #elect (D for )aterial

Orientation and t/en pic" t/e

basic coordinate system

g #elect >arge Strain for

%onlinear Formulation

/ Clic" O$

i Clic" Select Application

5egion?

j Pic" all 6 surfaces

" Clic" Add

l Clic" O$

mClic" Apply

a

b

d

f

c

e2

e1

g

h

i

j

k

l

m




Step 11. Setup Analysis

#etup Analysis,

a #elect Analysis, AnalyHe -

Entire &odel - Analysis

Dec

b 4nter @ob %ametensile#coupon

c Clic" on Solution 3ype

d #elect (mplicit !onlinear

e Clic" on Solution

Parameters.

f #elect S+ell S+ear

orrection and SO>00

5ung Clic" 5esults Output

Format

/ #elect &AS3E5-D6A>>

i Clic" O$

j Clic" O$

" Clic" O$

a

b

c

d

e

f

g

h

i

j

k




Step 11. Setup Analysis ont.B

#etup Analysis,

a Clic" on Subcases

b Clic" on De%ault

under Available

#ubcases

c Clic" on Subcase

Parameters

d Clic" on >oad

(ncrement

Params

e #elect Adaptive for

$ncrement ype

f 4nter 0.04 for

)aimum ime #tep

g Clic" O$

/ Clic" O$

i Clic" Apply

j Clic" ancel

" Clic" Apply a

b

c

d

e

f

g h

i jk




Step 1'. Edit (nput Dec and Submit Iob to &D !astran

– Open t/e ne&ly created input file tensile#coupon.bd% &it/

ordPad 0or editors or any ot/er tet editor – #earc/ for &A3F 04ditBFind?

– C/ange t/e t/ird field to ' 0for gradual selective PFA

– #ave t/e modified file

'



2( Advanced Composites - Progressive Ply Failure Analysis

Step 1'. Edit (nput Dec and Submit Iob to &D !astran ont.B

– !ouble clic" t/e &D !astran icon on t/e des"top

– 5ro&se and select tensile#coupon.bd%

– clic" Open and 5un 0)a"e sure t/at scrno is entered as an optional "ey&ord

– Open tensile#coupon.sts file to c/ec" t/e job status – normal completion if job

ends &it/ eit number (




Step 1*. Attac+ 5esults File

Access *esults file,

a #elect Analysis,

Access 5esults- Attac+

&AS3E5- 5esult

Entitiesb Clic" on Select 5esults

File

c 5ro&se to t/e &or"ing

directory and select

tensile#coupon.master

d Clic" O$

e Clic" Apply

a

b

c

d

e




Step 1. Display Ply Stresses

!isplay ply 1.=s stresses,

a Clic" Plot - Erase %orm

icon

b Clic" Display , Plot - Erase

and clic" 4rase to turn off

t/e geometry

c Clic" O$.d #elect 5esults, reate-

uic Plot

e #elect t/e last increment

under #elect *esult Cases

f #elect omposite Stress;

Ply Stress under #elect

Fringe *esult

g Clic" on Position> t/enselect <ayer 1. and clic"

lose

/ Clic" Apply

d

e

f

g

g

a

b

h

c

d

a




Step 1. Jie" Stress 5esult ont.B




Step 14. Display Ply Damage

!isplay ply 1.=s damage,

a #elect t/e lastincrement under

#elect *esult Cases

b #elect 3otal Damage

%or Progressive

Failure under #elect

Fringe *esult

c Clic" Apply

a

b

c



2. Advanced Composites - Progressive Ply Failure Analysis

Step 1/. Display >oadGDe%lection urve

d

ef

i

g

a

b

h

c

!isplay load-deflection curve,

a #elect 5esults, reate-

)rap+-8 vs 7

b #elect all increments under

#elect *esult Cases

c #elect onstraint Forces

3ranslational under #elect D

*esult

d #elect 7 omponent Euantity

e #elect 7, 5esult

f Clic" on Select 7 5esult

g #elect Displacements;

3ranslational under #elect

*esult

/ #elect 7 omponent Euantity

i Clic" O$

j Clic" t/e 3arget Entities icon

" Pic" t/e independent node of

t/e *542

l Clic" Apply

j

k

l



Advanced Composites Progressive Ply Failure Analysis

Step 1/. Display >oadGDe%lection urve ont.B

Documents

WebinarDemo Progressive Ply Failure Analysis