different cross section designs (WWF and reactangle), a) Calculate the max tensile stress and shear stress for each design. For the WWF beam, you may calcualte the average shear stress by considering the web contribution only. b) Sketch the distribution of normal stress and shear stress along the height of each cross section. c) Compare the max stress and the cross sectional area of each design and discuss which design is more efficient. 20 mm: 20 mm: B 20 mm C - 150 mm 150 mm 104mm -250 mm- The moment of inertia for the WWF section is I=310.3 x 106 mm². 320mm

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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A beam has the maximum bending moment M-20 kN-m and max shear force V= 60 kN. For two
different cross section designs (WWF and reactangle),
a) Calculate the max tensile stress and shear stress for each design. For the WWF beam, you may
calcualte the average shear stress by considering the web contribution only.
b) Sketch the distribution of normal stress and shear stress along the height of each cross section.
c) Compare the max stress and the cross sectional area of each design and discuss which design is
more efficient.
20 mm
20 mm:
B
20 mm
150 mm
C
150 mm
ㅏ
320mm
104mm
-250 mm-
The moment of inertia for the WWF section is 1=310.3 x 106 mm².
Transcribed Image Text:A beam has the maximum bending moment M-20 kN-m and max shear force V= 60 kN. For two different cross section designs (WWF and reactangle), a) Calculate the max tensile stress and shear stress for each design. For the WWF beam, you may calcualte the average shear stress by considering the web contribution only. b) Sketch the distribution of normal stress and shear stress along the height of each cross section. c) Compare the max stress and the cross sectional area of each design and discuss which design is more efficient. 20 mm 20 mm: B 20 mm 150 mm C 150 mm ㅏ 320mm 104mm -250 mm- The moment of inertia for the WWF section is 1=310.3 x 106 mm².
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