- Page 1: Technical University of Denmark Dep
- Page 5 and 6: £ ¥ § © ¥ § £ § ¥
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- Page 11 and 12: Sandwich columns Composite Structur
- Page 13 and 14: x2 =0
- Page 15 and 16: σkl = ℜ[Kr iɛ ](2πr) −1/2 σ
- Page 17 and 18: ◦ ψ ≈ 0 ◦ ψ ≈ 90
- Page 19 and 20: λ = s′ 11 s ′ 22 ρ = 2s′ 12
- Page 21 and 22: Gc ψ
- Page 23 and 24: J = Γ ∂ui Φdy − σijnj ds,
- Page 25 and 26: ∗ a/(unE ′
- Page 27 and 28: σ I n = un/u∗ n λ σ(λ) σ
- Page 29 and 30: Amn Cm
- Page 31 and 32: ⎧ ⎪⎨ ⎪⎩ a11 a21 a41 a61 a
- Page 33 and 34: L a x1 = −a
- Page 35 and 36: M3 P3
- Page 37 and 38: G P
- Page 39 and 40: ω ∗ [ ◦ ] η = h/H α = 0.8 α
- Page 41 and 42: 5%
- Page 43 and 44: F ℓ2
- Page 45 and 46: ◦
- Page 47 and 48: Facesheet material Core material ψ
- Page 49 and 50: dgl(x1) ℓ0 x2 L dloc(x1)
- Page 51 and 52: P P gl 1 0.5 1. snap−back 2. snap
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1 0.8 0.6 0.4 0.2 0 0 0.02 0.04 0.0
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∗ u
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P P gl 0.8 0.7 0.6 0.5 0.4 0.3 0.2
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60μm 7μm.
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GIc[kJ/m 2 ] Jss [kJ/m 2 ]
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Un = Ut = ℓf =0.
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(σnℓ/HEf σtℓ/HEf)
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Γ/EfH
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◦ β ≈ 7
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λ1
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Un < 20H
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β0,
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Pcr
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Σ < 0.01
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¢
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¥
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¥
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£
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[P1] International Journal of Fract
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302 R.C. Østergaard, B.F. Sørense
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304 R.C. Østergaard, B.F. Sørense
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306 R.C. Østergaard, B.F. Sørense
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308 R.C. Østergaard, B.F. Sørense
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310 R.C. Østergaard, B.F. Sørense
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312 R.C. Østergaard, B.F. Sørense
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314 R.C. Østergaard, B.F. Sørense
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316 R.C. Østergaard, B.F. Sørense
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Measurement of Interface Fracture T
- Page 109 and 110:
Interface Fracture Toughness of San
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Interface Fracture Toughness of San
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Interface Fracture Toughness of San
- Page 115 and 116:
Interface Fracture Toughness of San
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Interface Fracture Toughness of San
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Interface Fracture Toughness of San
- Page 121 and 122:
Interface Fracture Toughness of San
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Interface Fracture Toughness of San
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Interface Fracture Toughness of San
- Page 127 and 128:
Interface Fracture Toughness of San
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¡ £ ¥ § ¨ ¨ ¨
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R.C. Østergaard / International Jo
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een reached, the load decreases. In
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such that the tractions rn and rt d
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equilibrium solutions, also in the
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R.C. Østergaard / International Jo
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0.8 0.6 0.4 0.2 Another parameter t
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R.C. Østergaard / International Jo
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R.C. Østergaard / International Jo
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The properties of the interface (th
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Solid Mechanics Department of Mecha