MT-1620 al.2002 (4-4) (4-5) 2 33 46) 3 12 7) 2 1 au du 31 13 十 (4-8) 3 2dy3 dv du 2 dyn dym Paul A Lagace @2001 Unit 4-p. 4MIT - 16.20 Fall, 2002 ε11 = ∂ u1 (4-4) ∂ y1 ε22 = ∂ u2 (4-5) ∂ y2 ε33 = ∂ u3 (4-6) ∂ y3 ε21 = ε12 = 1   ∂ u1 + ∂ u2   2   ∂ y2 ∂ y1   ε31 = ε13 = 1   ∂ u1 + ∂ u3   2   ∂ y3 ∂ y1   ε32 = ε23 = 1   ∂ u2 + ∂ u3   2   ∂ y3 ∂ y2   (4-7) (4-8) (4-9) 1   ∂ um + ∂ un  ε  mn = 2   ∂ yn ∂ ym   Paul A. Lagace © 2001 Unit 4 - p. 4