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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K <br />
K = σCL iɛ+1/2 ,<br />
<br />
<br />
σ C iɛ+1/2 L<br />
iɛ +1/2 K<br />
<br />
<br />
K<br />
G <br />
<br />
[J/m2 ] <br />
ψ<br />
<br />
<br />
[radians].<br />
<br />
<br />
K<br />
<br />
G =<br />
|K| K G<br />
c1 + c2<br />
16 cosh 2 (πɛ) |K|2 ,<br />
<br />
<br />
<br />
<br />
<br />
<br />
β =0 ɛ =0 r iɛ<br />
<br />
<br />
<br />
<br />
<br />
ψ =tan(K2/K1).<br />
(ɛ = 0)K1<br />
K2<br />
<br />
<br />
<br />
<br />
<br />
ℓ<br />
Kℓ iɛ<br />
ψ =tan −1<br />
iɛ ℑ(Kℓ )<br />
ℜ(Kℓiɛ <br />
.<br />
)<br />
<br />
<br />
<br />
ℓ<br />
<br />
<br />
ψ ℓ<br />
<br />
G = Gc(ψ),<br />
Gc(ψ) ψ<br />
<br />
<br />
Gc(ψ)<br />
ℓ. <br />
ℓ<br />
ψ.
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