Bundle: Mechanics Of Materials, Loose-leaf Version, 9th + Mindtap Engineering, 1 Term (6 Months) Printed Access Card
9th Edition
ISBN: 9781337594318
Author: Barry J. Goodno; James M. Gere
Publisher: Cengage Learning
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Chapter 6, Problem 6.5.4P
An angle section with equal legs is subjected to a bending moment M having its vector directed along the 1—1 axis, as shown in the figure.
Determine the orientation of the neutral axis and calculate the maximum tensile stress etand maximum compressive stress te if the section is an L 152 × 152 × 127 section and M = 2.5 kN · m. See Table F-4(b) of Appendix F for the dimensions and properties of the angle section.
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Below Figure shows the section of an angle purlin. A bending moment of
5 kN.m is applied to the purlin in a plane at an angle of 30 deg to the
vertical y axis. If the sense of the bending moment is such that both its
components Mx and My produce tension in the positive xy quadrant,
calculate the maximum direct stress in the purlin, stating clearly the point
at which it acts. *
100 mm
E
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C D
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57 MPa.
89 MPa.
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O 72 MPa.
125mm
Below Figure shows the section of an angle purlin. A bending moment of 60
5 kN.m is applied to the purlin in a plane at an angle of 30 deg to the
vertical y axis. If the sense of the bending moment is such that both its
components Mx and My produce tension in the positive xy quadrant,
calculate the maximum direct stress in the purlin, stating clearly the point
at which it acts. *
100 mm
BỊ
10mm
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C
ID
10mm
57 MPa.
89 MPa.
Non Above
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A section is under the effect of M (kNm) bending moment which makes 6° with the positive +z
axis as shown in the figure. Caleulate the normal stress for point A, GA (MPa) and for point B,
OB (MPa).
Note: Consider only the hatched regions in your calculations. In other words, do not consider
empty regions in your calculations.
yA
a=20mm
b=40mm
M (kNm)
c=20mm
d=60mm
K=80mm
L=200mm
M=50kNm
Degree=120
B
ab]a
K
Results Table
OA (MPa)=
OB (MPa)=
Chapter 6 Solutions
Bundle: Mechanics Of Materials, Loose-leaf Version, 9th + Mindtap Engineering, 1 Term (6 Months) Printed Access Card
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