An extruded polymer beam is subjected to a bending moment M. The length of the beam is L = 780 mm. The cross-sectional dimensions of the beam are b₁ = 36 mm, d₁ = 104 mm, b₂ = 22 mm, d₂ = 22 mm, and a = 7 mm. For this material, the allowable tensile bending stress is 16 MPa, and the allowable compressive bending stress is 10 MPa. Determine the largest moment M that can be applied as shown to the beam. b2 ✓ a M d₁ B L A Answer: M = N•m d₂ b₁

Materials Science And Engineering Properties
1st Edition
ISBN:9781111988609
Author:Charles Gilmore
Publisher:Charles Gilmore
Chapter9: Time, Temperature, And Mechanical Properties
Section: Chapter Questions
Problem 9.19P
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An extruded polymer beam is subjected to a bending moment M. The length of the beam is L = 780 mm. The cross-sectional
dimensions of the beam are b₁ = 36 mm, d₁ = 104 mm, b₂ = 22 mm, d₂ = 22 mm, and a = 7 mm. For this material, the allowable tensile
bending stress is 16 MPa, and the allowable compressive bending stress is 10 MPa. Determine the largest moment M that can be
applied as shown to the beam.
b2
✓
a
M
d₁
B
L
N.m
A
Answer:
M =
d₂
b₁
Transcribed Image Text:An extruded polymer beam is subjected to a bending moment M. The length of the beam is L = 780 mm. The cross-sectional dimensions of the beam are b₁ = 36 mm, d₁ = 104 mm, b₂ = 22 mm, d₂ = 22 mm, and a = 7 mm. For this material, the allowable tensile bending stress is 16 MPa, and the allowable compressive bending stress is 10 MPa. Determine the largest moment M that can be applied as shown to the beam. b2 ✓ a M d₁ B L N.m A Answer: M = d₂ b₁
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