For the composite beam section in Figure Q6a, calculate the second moment of area about its centroidal x-x axis (Ixx centroid), where b₁ = 125.50 mm, b₂ = 25.75 mm, b3 = 36.35 mm, d₁ = 78.00 mm and d₂ = 24.00 mm Give your answer to 2 decimal places.
For the composite beam section in Figure Q6a, calculate the second moment of area about its centroidal x-x axis (Ixx centroid), where b₁ = 125.50 mm, b₂ = 25.75 mm, b3 = 36.35 mm, d₁ = 78.00 mm and d₂ = 24.00 mm Give your answer to 2 decimal places.
International Edition---engineering Mechanics: Statics, 4th Edition
4th Edition
ISBN:9781305501607
Author:Andrew Pytel And Jaan Kiusalaas
Publisher:Andrew Pytel And Jaan Kiusalaas
Chapter9: Moments And Products Of Inertia Of Areas
Section: Chapter Questions
Problem 9.13P: Figure (a) shows the cross section of a column that uses a structural shape known as W867...
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![a) For the composite beam section in Figure Q6a, calculate the second moment of area
about its centroidal x-x axis (Ixx centroid), where b₁ = 125.50 mm, b₂ = 25.75 mm,
b3 = 36.35 mm, d₁ = 78.00 mm and d₂ = 24.00 mm Give your answer to 2 decimal
places.
b2 →→
dz
Load
b1
Support
b3 →
Figure Q6a
b) Figure Q6b shows a simply supported 3.75 m long beam with a solid round cross-
section and a concentrated point load of 250 kN acting at the mid-point of the beam.
If the diameter of the beam cross-section is 165 mm, calculate the maximum tensile
stress [Otensile_max] and the maximum compressive stress [Ocompressive_max] experienced
by the beam. Use lxx = [¹/4] for the second moment of area of a round section beam
about its x-x centroid axis. Assume that the weight of the beam is zero and that the
beam section is solid and uniform along its entire length. Give your answer in N/mm²
to 2 decimal places.
d1](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F3a4b878b-69a4-4bbc-a0c4-63c855931047%2F947a12a8-d4c0-4a73-a137-3060981bea07%2Fkhhaulb_processed.png&w=3840&q=75)
Transcribed Image Text:a) For the composite beam section in Figure Q6a, calculate the second moment of area
about its centroidal x-x axis (Ixx centroid), where b₁ = 125.50 mm, b₂ = 25.75 mm,
b3 = 36.35 mm, d₁ = 78.00 mm and d₂ = 24.00 mm Give your answer to 2 decimal
places.
b2 →→
dz
Load
b1
Support
b3 →
Figure Q6a
b) Figure Q6b shows a simply supported 3.75 m long beam with a solid round cross-
section and a concentrated point load of 250 kN acting at the mid-point of the beam.
If the diameter of the beam cross-section is 165 mm, calculate the maximum tensile
stress [Otensile_max] and the maximum compressive stress [Ocompressive_max] experienced
by the beam. Use lxx = [¹/4] for the second moment of area of a round section beam
about its x-x centroid axis. Assume that the weight of the beam is zero and that the
beam section is solid and uniform along its entire length. Give your answer in N/mm²
to 2 decimal places.
d1
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