Pemodelan Benda Uji Balok Kayu Laminasi Komposit Duren-Sengon.

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, 3 4 5 # 6 %78 % % # δδδδ σ σσ σ $% $ "& ! -' ( % & . ' * &$) * "//" % - " ) 0 ! 1 1 2 3 3 ) ) 4 ! % & 56 %

, 3 4 5 # 6 %79 % % 3 -& 7 & % % % " ( . 0 1 2 3 ( ( % 8 & % - " . 0 $ $ , " , " & $ α % 7 ! -# 7 (

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= " &!" +$ , "/"2

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!

=

α

0 7

, 3 4 5 # 6 %:& ! & 0 -0 ( (       = 0 ( ( −

=

− + 9 -: ; " → ( < ; − 0 → - ; " ; −" -      =! 7

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1 ! α %       7 1

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2 4 % & -      = = = = 7 7 6 ₁ 0 " 1 "

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3 " 0 1 ! 1 ! " 0 1 % $ &

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; $ % =" =0 = * $ % !

, 3 4 5 # 6 %:% ; 1 α 7 8 ; 0 ( 8 ; 1 @ 0 ; "

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) A $ % -; ; * ( " 5 ; ( 0 ; B ρ ; * ( 1 ; , $ 0 6 ; 2 ; >

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) π -% 6 5 C

ρ

= D & -2 % 0 1 " 0 # " # ( ( ( ( = − − − − % 0 2 % 1 0 # " # ( ( = + + − + − − + + − & -( - < < ; # - −0 < @ @ 1 < % < 2 - @ 0% & -          =                                 − − − − # " # % # # " " # # " 2 " 1 " # " 0 # 0 # # " # # D 1 ; D @ 1 ; 3 1 $ → ≠ #

, 3 4 5 # 6 %:2 C

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−

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→ C %

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1

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≠

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→ A $ $ 0 % = − − = 2 0 0 "− − − − = D D /

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C

" 0 0−2

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0

=

                          =C 5 6₂

ρ

ρ

                          =       2 6 5 C

ρ

ρ

3 2 1 0

C

Π

Π

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$ ∏" ∏0 ∏3 & " " ; $ 1 " ! * " # % % -∏";φ ∏0 ∏1 ∏ "# *

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" " ( ( Π Π Π Π Π Π = Π Π ""

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(

"1 "0 "1 9 "0 * , 0 & - ). + ) . ,) # ! ! ( " " −" * # " * * # " 9 # " 5 ( 0 " −0 , ( 0 " −0 ! ; 0 ( 0 $ → 5 → ≠ −0 # " " # % , 5 C ! =

, 3 4 5 # 6 %:. & -% 0 0 # " " ( ( ( − = − − # % 0 0 % # " " ( ( − = + + + − − & -< % ; " < < @ 0 @ 0% ; −" ! 5 $ -; "-; @ % ; −" @ @ < 0 @ 0% @ 0% ; " @ @ @ 2% & -% % " 2% " , 5 C ! =

( )

5 5 , C ! %                   = % 5 , C 5 !                   =       % 2 1 0 "

=

C

Π

Π

Π

Π

-5 ! "= Π 8 Π₁= 0 = Π 8 5 , 2 = Π -0 0 =Π Π → = → _       = * &

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



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

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=

&

-0 0 =Π Π → = → & " = "2 1 1 =Π Π → = → & " = "3 2 2 =Π Π → 5 , 5 , = → , 5 5 , _       =

, 3 4 5 # 6 %:7 * &5

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



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=

5

5

5

&

-2 2 =Π Π → 5 , 5 , = → 5 , & " , = "> * "2 "3 "> -; $ + % % % % 1 $ ' ( ( * " " ! : , 1 & A % -- ). + ) . ,) # * ( " # # " δ # " 6 6 2 # 2 " " =Π Π → 5 ! 5 ! = ! 5 5 ! = 5& ! & ! =

, 3 4 5 # 6 %:: ! ! ( " " −" 5 5 ( 0 " −0 σ ( 0 " −0 ( " " * # " 9 # " ; "#8 ; "# @ 0 ; D ! ; 0 ( 0 $ → 5 → ≠ −0 # " " # % , 5 ! 6 C =

δ

&

-( ) -( )

( )

2 " 0 % 0 # " #

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(

(

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=

− − − # 0 % 0 2 % # " # ( ( = + + + + + − − − ++ & -( 8 < < % < < ; # 8 < 2 @ @ 0% @ 0 < < < ; " 8 # ; # ! 5 $ -% ; − − − − ; " @ 2 < < 0% < 0 @ @ @ ; " @ 2 < < 0 − − − − < 0 @ 6 @ @ ; " @ 2 < − 0 − 0 − 0 − 0 < 0 @ @ @ ; " @ 2 − − 0 − 1 @ @ & -1 0 2 " 9 * 5 ! 6 C

σ

δ

= 9 * 5 5 5 ! 6 5 C _                                          =

σ

δ

9 * 5 5 5 ! 6 5 C                                           =

σ

δ

D ? > 3 2 1 0 "

=

C

Π

Π

Π

Π

Π

Π

Π

Π

-δ

= Π_" 8 5 3

σ

= Π 5 : 0 = Π 8 5 > = Π 6 1= Π 8 Π_? = *

, 3 4 5 # 6 %:= 5 ! 2 = Π 8 Π_D =9 -" " =Π Π →

δ

=

δ

→

δ

_

δ

      = 0 0 =Π Π → 0 0 5 5 = → 0 0 5 5         = 1 1 =Π Π → 2 2 6 6 = → ₂ 2 6 6 _       = 2 2 =Π Π → 5 ! 5 ! = → ! 5 5 ! _       = 3 3 =Π Π → 5 5

σ

σ

= → 5 5

σ

σ

_       = > > =Π Π → _{1 1} 5 5 = → 1 1 5 5         = ? ? =Π Π → * = * → * _ *       = D D =Π Π → 9 = 9 → 9 _ 9       = % " " *' - ). * & * * /) * ). " * 23## 3## 0 ! 1 δ 0 # >>? 2 6 6 2 31D2 231 >> 2?3 3 ! ! . "?## 3>> >>? > " # # $ %& %& ? σ . 0 23# 23# D 003### D11 111 / * ? 3 0 3 "# 9 0# 3 > D1 C - ) 5

, 3 4 5 # 6 %:8 % " 0"# ?# ? 3 E 0# 3 0 3 E > D1 * 23## 3## & -' -" 0 * " ! " 1 "# $ % $ 2 % % # δδδδ σσσσ $% $ # : "/>" 5 ( ( ! /! 7 %9:% * ' C ! ) & 9 : 5 , ' B "/?1 ) > ) > # + ( ' A 01 + 0 2D 32 & * "//" & 5 : ) $ 6 ( , 4