Cap 4 Ecuatii
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σ ( σ αβ ) − Y=0 unde σ ( σ αβ ) ≥ 0 σ αβ =σ βα ( = 1,2) sunt σ 3 i =σ i 3 =0 , i = 1, 2, 3 ˙ ε αβ (p) = ˙ λ δ σ δσ αβ unde ˙ ε αβ (p) =˙ ε βα ( p) şi ˙ λ≥ 0 ˙ ε 3α (p) =˙ ε α 3 ( p) =0 , ˙ ε 33 (p) =−˙ ε 11 ( p) −˙ ε 22 (p) 4.2. Calculul tensiunii echivalente σ 2 k w −1 = ∑ i=1 s { w i−1 {[ L ( i) +M ( i) ] 2k +[ L ( i) −M (i ) ] 2 k } + w s−i {[ M ( i) +N (i ) ] 2 k + [ M ( i) −N ( i) ] 2 k }}
Transcript of Cap 4 Ecuatii
unde ( = 1,2) sunt , i = 1, 2, 3
unde
i
4.2. Calculul tensiunii echivalente
