ABBOTT AEROSPACE INC. PROPRIETARY INFORMATIONSubject to restrictions on the cover or first page

Author: R. Abbott Document Number: AA-SM-025-002Check: Revision Level : A

Date: Dec-09 Page: 1 of 1

Cozzone Theory of Plastic Bending - Shape Factor of Complex Shapes

t₁ = 0.04 int₂ = 0.04 inb = 2.10 inh = 3.20 in

K = (6 · h · (b · t₂ · (h - t₂) + t₁ · (h / 2 - t₂)²))/ (2 · b · t₂ · (t₂²+ 3 · (h - t₂)²) + t₁ · (h - 2 · t₂)³) =

K = 1.11

(6 · 3.2 · (2.1 · 0.04 · (3.2 - 0.04) + 0.04 · (3.2 / 2 - 0.04)²)) / (2 · 2.1 · 0.04 · (0.04²+ 3 · (3.2 - 0.04)²) + 0.04 · (3.2 - 2 · 0.04)³)

ABBOTT AEROSPACE INC. PROPRIETARY INFORMATIONSubject to restrictions on the cover or first page

Author: R. Abbott Document Number: AA-SM-025-002Check: Revision Level : A

Date: Dec-09 Page: 2 of 1

Cozzone Theory of Plastic Bending - Shape Factor of Complex Shapes

t₁ = 0.05 int₂ = 0.08 inb = 2.50 inh = 3.60 in

K = (3 · h · (t₁ · h² + (b - t₁)· t₂²))/ (2 · (t₁ · h³ + (b - t₁)· t₂³)) = (3 · 3.6 · (0.05 · 3.6² + (2.5 - 0.05) · 0.08²)) / (2 · (0.05 · 3.6³ + (2.5 - 0.05) · 0.08³))

K = 1.54

ABBOTT AEROSPACE INC. PROPRIETARY INFORMATIONSubject to restrictions on the cover or first page

AA-SM-025-002

ABBOTT AEROSPACE INC. PROPRIETARY INFORMATIONSubject to restrictions on the cover or first page

AA-SM-025-002

ABBOTT AEROSPACE INC. PROPRIETARY INFORMATIONSubject to restrictions on the cover or first page

Author: R. Abbott Document Number: AA-SM-025-002Check: Revision Level : A

Date: Dec-09 Page: 1 of 1

Cozzone Theory of Plastic Bending - Shape Factor of Complex Shapes

t₁ = 1.60 mmt₂ = 1.80 mmb = 30.00 mmh = 40.00 mm

K = (6 · h · (b · t₂ · (h - t₂) + t₁ · (h / 2 - t₂)²))/ (2 · b · t₂ · (t₂²+ 3 · (h - t₂)²) + t₁ · (h - 2 · t₂)³) =

K = 1.13

(6 · 40 · (30 · 1.8 · (40 - 1.8) + 1.6 · (40 / 2 - 1.8)²)) / (2 · 30 · 1.8 · (1.8²+ 3 · (40 - 1.8)²) + 1.6 · (40 - 2 · 1.8)³)

ABBOTT AEROSPACE INC. PROPRIETARY INFORMATIONSubject to restrictions on the cover or first page

Author: R. Abbott Document Number: AA-SM-025-002Check: Revision Level : A

Date: Dec-09 Page: 2 of 1

Cozzone Theory of Plastic Bending - Shape Factor of Complex Shapes

t₁ = 1.60 mmt₂ = 1.80 mmb = 30.00 mmh = 40.00 mm

K = (3 · h · (t₁ · h² + (b - t₁)· t₂²))/ (2 · (t₁ · h³ + (b - t₁)· t₂³)) = (3 · 40 · (1.6 · 40² + (30 - 1.6) · 1.8²)) / (2 · (1.6 · 40³ + (30 - 1.6) · 1.8³))

K = 1.55

ABBOTT AEROSPACE INC. PROPRIETARY INFORMATIONSubject to restrictions on the cover or first page

AA-SM-025-002

ABBOTT AEROSPACE INC. PROPRIETARY INFORMATIONSubject to restrictions on the cover or first page

AA-SM-025-002