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356 22 Thermoelastic displacement potentials

Table 22.1. Solutions T and P

Solution T

Solution P

Williams’ solution Thermoelastic Plane Stress

2µu x z ∂χ

∂x

2µu y z ∂χ

∂y

2µu z χ + z ∂χ

∂z

σ xx

σ xy

σ yy

σ xz

σ yz

z ∂2 χ

∂x 2

− 2 ∂χ

∂z

z ∂2 χ

∂x∂y

z ∂2 χ

∂y 2 2 ∂χ

∂z

∂χ

+ ∂x z ∂2 χ

∂x∂z

∂χ

+ ∂y z ∂2 χ

∂y∂z

2(1−ν) ∂ψ

∂x

2(1−ν) ∂ψ

∂y

−2(1−ν) ∂ψ

∂z

−2(1−ν) ∂2 ψ

∂y 2

2(1−ν) ∂2 ψ

∂x∂y

−2(1−ν) ∂2 ψ

∂x 2

σ zz

z ∂2 χ

∂z 2 0

2µu r z ∂χ

∂r

2(1−ν) ∂ψ

∂r

z ∂χ

2µu θ r ∂θ

σ rr z ∂2 χ

∂r 2 2 ∂χ

∂z

z ∂

σ 2 χ

rθ − z ∂χ

r ∂r∂θ r 2 ∂θ

σ θθ

σ rz

σ θz

T

q z

q r

∂χ

− z ∂ 2 χ

∂r r 2 ∂θ 2

∂χ

+ ∂r z ∂2 χ

∂r∂z

z ∂ 2 χ

+ 1 ∂χ

r ∂θ∂z r ∂θ

1−ν ∂χ

µα(1+ν) ∂z

− (1−ν)K ∂ 2 χ

µα(1+ν) ∂z 2

− (1−ν)K ∂ 2 χ

µα(1+ν) ∂z∂r

z

r

− 2 ∂χ

∂z

0

0

2(1−ν) ∂ψ

r ∂θ

( 1 ∂ψ

2(1−ν) + )

1 ∂ 2 ψ

( r ∂r r 2 ∂θ 2

1 ∂

2(1−ν)

2 ψ

− )

1 ∂ψ

r ∂r∂θ r 2 ∂θ

−2(1−ν) ∂2 ψ

∂r 2

0

0

− (1−ν) ∂ 2 ψ

µα(1+ν) ∂z 2

(1−ν)K ∂ 3 ψ

µα(1+ν) ∂z 3

(1−ν)K ∂ 3 ψ

µα(1+ν) ∂z 2 ∂r

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