Question 1.9 A beam is constructed of a channel section. The cross section has the dimensions indicated in Figure Q1.9 and the moment of inertia (second moment of area) about the z axis (the neutral axis) is I=1.2 x 10 mm. The bending moment at a certain point is M = -1 kNm. The maximum tensile stress o,and maximum compressive stress o, resulting from this bending moment are 15 mm 2- C Figure Q1.9 55 mm 4

Mechanics of Materials (MindTap Course List)
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ISBN:9781337093347
Author:Barry J. Goodno, James M. Gere
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Chapter6: Stresses In Beams (advanced Topics)
Section: Chapter Questions
Problem 6.5.12P: A C 200 x 17.1 channel section has an angle with equal legs attached as shown; the angle serves as a...
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Question 1.9
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A beam is constructed of a channel section. The cross section has the dimensions indicated in Figure Q19 and the moment of
inertia (second moment of area) about the z axis (the neutral axis) is I=1.2 x 10 mm. The bending moment at a certain point is M =
-1 kNm. The maximum tensile stress o,and maximum compressive stress o resulting from this bending moment are
15 mm
2-
H
C
Iss mm
Figure Q1.9
ot = 29.2 MPa and oc = -29.2 MPa
ot-29.2 MPa and oc = 29.2 MPa
O C.
ot = 45.8 MPa and oc = -12.5 MPa
O d. ot 12.5 MPa and oc = -45.8 MPa
O a.
O b.
Transcribed Image Text:Question 1.9 Qu A beam is constructed of a channel section. The cross section has the dimensions indicated in Figure Q19 and the moment of inertia (second moment of area) about the z axis (the neutral axis) is I=1.2 x 10 mm. The bending moment at a certain point is M = -1 kNm. The maximum tensile stress o,and maximum compressive stress o resulting from this bending moment are 15 mm 2- H C Iss mm Figure Q1.9 ot = 29.2 MPa and oc = -29.2 MPa ot-29.2 MPa and oc = 29.2 MPa O C. ot = 45.8 MPa and oc = -12.5 MPa O d. ot 12.5 MPa and oc = -45.8 MPa O a. O b.
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