The trapezoidal cross-section of a curved beam is shown below. 25 mm 30 mm 25 mm 45 mm If the distance of the outside edge to the axis of curvature is 100 mm, locate the centroidal axis and the neutral axis of the cross-section. Also, calculate the bending stress at the inner and outer points on the cross section, and the stress at point A as shown, if the cross-section carries an internal bending moment of 200 N.m.

Structural Analysis
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Chapter2: Loads On Structures
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4. The trapezoidal cross-section of a curved beam is shown below,
25mm
30mm
25mm
45mm
If the distance of the outside edge to the axis of curvature is 100 mm, locate the centroidal axis
and the neutral axis of the cross-section. Also, calculate the bending stress at the inner and
outer points on the cross section, and the stress at point A as shown, if the cross-section carries
an internal bending moment of 200 N.m.
Transcribed Image Text:4. The trapezoidal cross-section of a curved beam is shown below, 25mm 30mm 25mm 45mm If the distance of the outside edge to the axis of curvature is 100 mm, locate the centroidal axis and the neutral axis of the cross-section. Also, calculate the bending stress at the inner and outer points on the cross section, and the stress at point A as shown, if the cross-section carries an internal bending moment of 200 N.m.
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