27.05.2013 Views

a análise de placas laminadas compostas inteligentes

a análise de placas laminadas compostas inteligentes

a análise de placas laminadas compostas inteligentes

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

7.3 Equações constitutivas do laminado piezelétrico 130<br />

⎧<br />

⎪⎨<br />

⎪⎩<br />

=<br />

+<br />

M3x<br />

M3y<br />

M3xy<br />

⎡<br />

⎢<br />

⎣<br />

⎡<br />

⎢<br />

⎣<br />

⎫<br />

⎪⎬<br />

=<br />

⎪⎭<br />

N<br />

k=1<br />

L11 L12 L16<br />

L12 L22 L26<br />

L16 L26 L66<br />

H11 H12 H16<br />

H12 H22 H26<br />

H16 H26 H66<br />

Qy<br />

=<br />

+<br />

Qx<br />

zk<br />

<br />

zk−1<br />

⎛⎡<br />

⎜<br />

⎜⎢<br />

⎜⎢<br />

⎝⎣<br />

<br />

⎧<br />

<br />

⎪⎨<br />

<br />

+<br />

<br />

⎪⎩<br />

<br />

⎧<br />

⎤<br />

⎪⎨ ⎥<br />

⎦<br />

⎪⎩<br />

⎧<br />

⎤<br />

⎪⎨ ⎥<br />

⎦<br />

=<br />

⎪⎩<br />

N<br />

k=1<br />

Ac44 Ac45<br />

npiez <br />

k=1<br />

Ac45 Ac55<br />

∂u 0<br />

∂y<br />

e14 e24<br />

e15 e25<br />

C11 C12 C16<br />

C12 C22 C26<br />

C16 C26 C66<br />

e31<br />

e32<br />

e36<br />

∂u 0<br />

∂x<br />

∂v 0<br />

∂y<br />

∂ψ3x<br />

∂y<br />

zk<br />

zk−1<br />

⎫<br />

⎪⎬<br />

⎪⎭<br />

(k)<br />

+ ∂v0<br />

∂x<br />

∂ψ3x<br />

∂x<br />

∂ψ3y<br />

∂y<br />

<br />

⎫<br />

⎪⎭<br />

+ ∂ψ3y<br />

∂x<br />

⎛<br />

⎝<br />

⎤(k)<br />

⎧⎪<br />

⎥ ⎨<br />

⎥<br />

⎦<br />

⎪⎩<br />

− ϕk−1<br />

hk<br />

⎡<br />

⎪⎬ ⎢<br />

+ ⎢<br />

⎣<br />

⎫<br />

⎪⎬<br />

−<br />

⎪⎭<br />

C44 C45<br />

C45 C55<br />

⎞<br />

ε 0 x + zκx + z 3 κ3x<br />

ε 0 y + zκy + z 3 κ3y<br />

γ 0 xy + zκxy + z 3 κ3xy<br />

⎟<br />

⎠ z3 dz<br />

F11 F12 F16<br />

F12 F22 F26<br />

F16 F26 F66<br />

npiez <br />

k=1<br />

<br />

<br />

<br />

<br />

<br />

+<br />

<br />

e14 e24<br />

e15 e25<br />

⎧⎪ ⎨ ψy +<br />

⎪⎩<br />

∂w0<br />

∂y<br />

ψx + ∂w0<br />

⎫<br />

⎪⎬<br />

+<br />

⎪⎭<br />

∂x<br />

⎧ ⎫<br />

(k)<br />

∂ϕk−1 ⎪⎨ ⎪⎬<br />

hk ∂x<br />

2 ⎪⎩ ⎪⎭<br />

∂ϕk−1<br />

∂y<br />

⎧<br />

⎪⎨<br />

⎪⎩<br />

e31<br />

e32<br />

e36<br />

⎫<br />

⎪⎬<br />

⎪⎭<br />

⎧<br />

⎤<br />

⎪⎨ ⎥<br />

⎦<br />

(k)<br />

⎪⎩<br />

ϕk−1<br />

(k) γ 0 yz + z 2 κ2yz<br />

γ 0 xz + z 2 κ2xz<br />

(k) zk − z<br />

kk<br />

Dc44 Dc45<br />

(k)<br />

Dc45 Dc55<br />

∂ψx<br />

∂y<br />

1<br />

4hk<br />

<br />

Epx<br />

Epy<br />

∂ψx<br />

∂x<br />

∂ψy<br />

∂y<br />

⎫<br />

<br />

⎪⎬<br />

<br />

<br />

<br />

<br />

⎪⎭<br />

<br />

<br />

<br />

+ ∂ψy<br />

∂x<br />

⎫<br />

⎪⎬<br />

⎪⎭<br />

(z 4 k − z 4 k−1)<br />

⎞<br />

3ψ3y<br />

3ψ3x<br />

⎠ dz<br />

<br />

(7.61)<br />

(7.62)

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!