Rasmus ÿstergaard forside 100%.indd - Solid Mechanics
Rasmus ÿstergaard forside 100%.indd - Solid Mechanics
Rasmus ÿstergaard forside 100%.indd - Solid Mechanics
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σn(Un/H)ℓ<br />
EfH<br />
= Pn<br />
EfH<br />
σt(Ut/H)ℓ<br />
EfH<br />
= Pt<br />
EfH .<br />
<br />
<br />
<br />
<br />
<br />
σ I n = un<br />
u∗ σ(λ) I<br />
σt = α<br />
n λ<br />
ut<br />
u∗ σ(λ)<br />
t λ ,<br />
<br />
α =Γt/Γn<br />
<br />
<br />
Γn,<br />
Γt<br />
<br />
Γn<br />
<br />
<br />
<br />
<br />
<br />
νf = νm =0.3<br />
Ef/Em =20<br />
<br />
<br />
<br />
H/h Ef/Em<br />
<br />
<br />
<br />
10%<br />
∗ un = H <br />
<br />
√ H α<br />
20<br />
∗ ut =<br />
20<br />
<br />
<br />
<br />
10−5<br />
α =1<br />
Γn<br />
HEf<br />
=5×<br />
λ1 =0.1 λ2 =0.5 <br />
<br />
<br />
<br />
<br />
ℓ = 150H<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
ℓf =0<br />
<br />
ℓf ≈ 25.
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