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WS8b-1
WORKSHOP 8b
Z-SECTION CANTILEVER BEAM
CAT509, Workshop 8b, March 2001
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WS8b-3CAT509, Workshop 8b, March 2002
WORKSHOP 8b Z-SECTION CANTILEVER BEAM
Material: Aluminum
Young Modulus = 10.15e6 psi
Shear Modulus = 3.77e6 psi
Poisson Ratio = .36
!ensit" = .0#$ l%&in3
Yield Strength = 1377$ psi
6 in'hes
1000 l%s
Problem Descr!"o# Load case.
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WS8b-4CAT509, Workshop 8b, March 2002
Problem Descr!"o# Bed!" ad shear d!sp#ace$e%
Bed!" s%ress
WORKSHOP 8b Z-SECTION CANTILEVER BEAM
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WS8b-5CAT509, Workshop 8b, March 2002
S$%%es"e& E'ercse S"e!s
1. Crea%e a e& CAT'A aa#(s!s doc)$e% *.CATAa#(s!s+.
2. Mesh "#oba##( &!%h #!ear e#e$e%s.
3. App#( a c#a$p res%ra!%.
4. App#( a d!s%r!b)%ed orce.
5. Co$p)%e %he !!%!a# aa#(s!s.
. Check "#oba# ad #oca# prec!s!o *a!$a%e deor$a%!o, adap%!e
bo/es ad e/%re$as+.. Cha"e $esh %o parabo#!c, poss!b#( add #oca# $esh!".
8. Co$p)%e %he prec!se aa#(s!s.
9. !s)a#!e !a# res)#%s.
10. Sae %he aa#(s!s doc)$e%.
WORKSHOP 8b Z-SECTION CANTILEVER BEAM
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WS8b-CAT509, Workshop 8b, March 2002
S"e! () Cre*"e * #e+ CATIA *#*l,ss &oc$me#"
S"e!s
()pe %he e/!s%!"
&s8bsec%!o.CATar%
ro$ %he %ra!!"
d!rec%or(.
.)App#( a#)$!)$
$a%er!a# proper%!es %o
%he par% as re6)!red.
/)La)ch %he
7eera%!e S%r)c%)ra#
Aa#(s!s &orkbech.
0)Spec!( %he
Co$p)%a%!os ad
es)#%s s%ora"e
#oca%!os as sho&.
2
1
3
4
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S"e! .) Mes1 %lob*ll, +"1 l#e*r eleme#"s
S"e!s
()o)b#e C#!ck %he
:Mesh; !co o %he
par%.
.)!"h% c#!ck ! %he
7#oba# S!e bo/ ad
se#ec% Meas)re.
/) o
$esh s!e *.01!+.
1
3
4
2
(hange to .01in5
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S"e! /) A!!l, * cl*m! res"r*#"
S"e!s
()Se#ec% %he C#a$p
es%ra!%
!co.
.)Se#ec% %he ace a%
%he or!"!, se#ec% ?.
1
2
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S"e! 0) A!!l, * &s"rb$"e& 3orce
Load o#( o %he &eb
S"e!s
()Se#ec% %he @orce
!co.
.)Se#ec% %&o ed"es as
sho&.
/)%er -1000 #bs !%he -d!rec%!o, se#ec%
?.
' (o) %r( se#ec%!" %he
ace %he &ho#e cross
sec%!o &!## se#ec%,
ca)s!" !acc)ra%e
#oad!" o %he #a"es.
1
2
3
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S"e! 0) A!!l, * &s"rb$"e& 3orce
'% !s ecessar( %o add
a bo)dar( cod!%!o
%ha% orces a## bed!"
%o occ)r ! %he /-
p#ae.
S"e!s
()Se#ec% %he S)race
S#!der !co.
.)Se#ec% %he ace assho&.
s($$e%r!ca#
sec%!os &!## de#ec%
#a%era##( &!%ho)% %h!s
S)race S#!der
res%ra!%.
1
2
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S"e! 2) Com!$"e "1e #"*l *#*l,ss
1
2
3
S"e!s
()Se#ec% %he Co$p)%e
!co.
.)Co$p)%e A##
bec%s de!ed, se#ec%?.
/)A#&a(s be a&are o
%hese a#)es, se#ec%
=es.
Sae o%e.
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!s)a#!e %he
De3orm*"o# ad
a!$a%e.
S"e!s
()Se#ec% %he
eor$a%!o !co.
.)Se#ec% o %he
A!$a%e !co.
er!( %ha% (o) hae
o de#ec%!o ! %he
(-d!rec%!o b(
a!$a%!" %he ro%
!e&.
S"e! 4) C1ec5 %lob*l *#& loc*l !recso#
1
2
)ront *ie+
,S- *ie+
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!s)a#!e %hecom!$"*"o# error
m*!)
S"e!s
()Se#ec% %he
rec!s!o !co.
.)Se#ec% o %he
!or$a%!o !co./) Se#ec% %he
s%!$a%ed #oca# error
obec% ! %he ea%)res
%ree. +.
S"e! 4) C1ec5 %lob*l *#& loc*l !recso#
1
2
3
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S"e! 4) C1ec5 %lob*l *#& loc*l !recso#
1
@!d %he "#oba#
e#e$e% &!%h %heh!"hes% es%!$a%ed
error.
S"e!s
()Se#ec% %he Search
'$a"e /%re$a !co.
.)Se#ec% 7#oba# ad 2
$a/!$)$ e/%re$a a%$os%, se#ec% ?.
/) !"h% c#!ck %he
7#oba# Ma/!$)$.1
obec% ! %he ea%)res
%ree %he se#ec% @oc)s
.
2
3
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S"e! 4) C1ec5 %lob*l *#& loc*l !recso#
1
e%er$!e #oca# error
perce%a"e *>+.
S"e!s
() Se#ec% %he adap%!!%(
bo/ !co.
.) Se#ec% %he :Se#ec%
/%re$)$; b)%%o %he
7#oba# Ma/!$)$.1 !
%he ea%)res %ree %o
#oca%e bo/.
/) se %he co$pass ad"ree do%s %o #oca%e ad
s!e bo/ aro)d
$eshed areas.
0)S!ce #oca# error !s
aboe 10> %r( cha"!"
%he $esh e#e$e% %o
arabo#!c.
2b
3
2a
4
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S"e! 6) C1*#%e mes1 "o !*r*bolc
ede!e %he "#oba#
!!%e e#e$e% $esh
%(pe.
S"e!s
()o)b#e C#!ck %he:CT Te%rahedro
Mesh.1;
represe%a%!o ! %he
ea%)res %ree.
.)Cha"e e#e$e%
%(pe %o arabo#!c,
se#ec% ?.
1
2
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S"e! 8) Com!$"e "1e !recse *#*l,ss
1
2
3
S"e!s
()Se#ec% %he Co$p)%e
!co.
.)Co$p)%e A##
bec%s de!ed, se#ec%?.
/)A#&a(s be a&are o
%hese a#)es, se#ec%
=es.
Sae o%e.
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Check ho& $)ch %he
"#oba# es%!$a%ed error
has !$proed
S"e!s
()!"h% c#!ck %he
s%!$a%ed #oca# error
obec% ! %he ea%)res
%ree %he se#ec% '$a"e
Ac%!a%eDeAc%!a%e %o
ac%!a%e %he !$a"e.
.)Se#ec% o %he
!or$a%!o !co.
/) Se#ec% %he
s%!$a%ed #oca# error
obec% ! %he ea%)res
%ree.
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S"e! 8) Com!$"e "1e !recse *#*l,ss
Check ho& $)ch %he#oca# es%!$a%ed error
has !$proed.
S"e!s
() !"h% c#!ck /%re$a
obec% ! %he ea%)res
%ree %he se#ec% Loca#
pda%e.
.) o)b#e c#!ck %he
Adap%!!%( rocess
obec% ! %he ea%)res
%ree.
/)S!ce #oca# error !s
be#o& 10> &e hae a
prec!se $ode#.
2
1
3
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S"e! 7) Vs$*le 3#*l res$l"s
Add %he d!sp#ace$e%
!$a"e.
S"e!s
() )% %he adap%!!%( bo/!%o o sho& b( r!"h%
c#!ck!" Adap%!!%(
rocess ! %he ea%)res
%ree %he se#ec%
E!deDSho&.
.)Se#ec% %he
d!sp#ace$e% !co %o
add %h!s !$a"e.
2
1
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WS8b-21CAT509, Workshop 8b, March 2002
S"e! 7) Vs$*le 3#*l res$l"s
1
!s)a#!e Vo# Mses
s"ress 3el& !*""er#s)
S"e!s
()Se#ec% %he S%ress
o M!ses !co.
Th!s a)%o$a%!ca##(
deac%!a%es %he
Tras#a%!oa#
d!sp#ace$e% !$a"e
ad ac%!a%es %he o
M!ses !$a"e.
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WS8b-22CAT509, Workshop 8b, March 2002
S"e! 7) Vs$*le 3#*l res$l"s
@!d %he e#e$e% &!%h
$a/!$)$ o M!ses
S%ress.
S"e!s
()Se#ec% %he search
!$a"e e/%re$a !co
%he se#ec% 7#oba# ad
ke( ! 2 Ma/!$)$
e/%re$a a% $os%.
.) !"h% c#!ck 7#oba#
Ma/!$)$.1 ! %he
ea%)res %ree %he se#ec%
@oc)s .
1a
1b2
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WS8b-23CAT509, Workshop 8b, March 2002
S"e! 7) Vs$*le 3#*l res$l"s
@!d e/ac% reco$$ed
des!" s%ress.
S"e!s
()!"h% c#!ck /%re$a !
%he ea%)res %ree %hese#ec% E!deDSho&.
.) o)b#e c#!ck o
M!ses S%ress obec% !
%he ea%)res %ree.
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WS8b-24CAT509, Workshop 8b, March 2002
S"e! 7) Vs$*le 3#*l res$l"s
@!d e/ac% reco$$ed
des!" s%ress.
S"e!s
() B( pos!%!o!" %he
c)rsor o a e#e$e% %he
s%ress a#)es sho&
re#a%!e %o %he c)rre%
@!#%er *! %h!s case a% %he
odes+.
.) The $a/!$)$
e/%re$a s%ress !s
)!#)eced b( po!sso
eec%s (!e#d!" h!"her
%ha e/pec%ed s%resses
/) The des!" s%ress !s
o)d a% %he
!%er$ed!a%e odes o
%he bo%%o$ e#e$e%s.
123000 - 134000 ps!
2
1
3
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WS8b-25CAT509, Workshop 8b, March 2002
S"e! 7) Vs$*le 3#*l res$l"s
H*#& C*lc$l*"o#s )( #c1 P*r*bolc 9lob*l Mes1: );( #c1 s*%
9lob*l < Precso# error
Loc*l < Precso# error
NA
NA
.)/8
M*' Vo# Mses S"ress (..;;; !s (./;;; - (/0;;; !s
Co#cl$so#s CAT'A 5 7SA &orkbech !s a#!da%ed or a -sec%!o
ca%!#eer bea$ scear!o. To be cosera%!e, !crease$a%er!a# s%re"%h %o a $!!$)$ (!e#d o 134000 ps! or%he descr!bed #oad case.
S (; S 1 l &
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S"e! (;) S*?e "1e *#*l,ss &oc$me#"
S"e!s
()@ro$ %he !#e $e)
se#ec% Sae
Maa"e$e%.
.)E!"h#!"h% doc)$e%
(o) &a% %o sae.
/)Se#ec% Sae As %o
spec!( a$e ad
pa%h, se#ec%, ? 23
1