Question Same Internal Axial Fone E fail large · Learn to perform failure analysis in...
Transcript of Question Same Internal Axial Fone E fail large · Learn to perform failure analysis in...
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Question : Same Internal Axial Fone,which
E ←7-→ pcase is easier to fail :
① Small Cross sectional Area V.s. large Area ?
② Wood V-S . Steel ?
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psi PI Ksi = tooo psi
-I-
- -
=.
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deformation at a point
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IO
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IET
necksflown
slope - How hard the material is
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¥,y
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f- to kips
but ② Cut①1,O
'
lL
l,
I
\ !Cut①
← ← p diFN
Efron.
- Fn - P--o ⇒ Fn -- - P : - lo kipscompression
Qso == = - 3,183 kf¥= -3183 psi
x.
Cut @ ← P
E Ex --o : - fat 4p - p ⇒ ⇒ Eu -- 317=30 kipstension
Tais -- FAI -- ¥¥÷n. = 6.11519¥ = 6115 psi
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ax,= did ⇒fcexidxnfdxfdx"
⇒ faxidx -- Lt - L =D
Fngbcx,K" -- BE ×
a
volume
a
"" El - - - - - atf Al"
←II Tip dip .D
W-- 8. VH1 f,f×) -- V - VIX)
Uhm -
- S? Ais> dg-f.ME .gjdg=b÷x3(x ) 8.bg÷×3⇒ ax, -- =
= }t×
⇒ an -- Eek.
④ dx -- dit- dx I S§xdx=E-2=74:p.
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- gifted. -- EE'
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Quiz-
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