Asked Mar 27, 2019

The frame is subjected to the horizontal force and couple moment. Determine the priciple stresses and the absolute maximum shear stress at point A.

Refer to attached image. Thank you.

3 m
400 N
350 N-m
2 m
150 mm
150 mm
1 m
50 mm

Image Transcriptionclose

3 m 400 N 350 N-m 2 m 150 mm 150 mm 1 m 50 mm


Expert Answer

Step 1

Determine the moment of inertia of the cross section:

The width of the section is 0.15 m and the depth 0.05 m.

Step 2

Find the first moment of the area of the section as shown below:

The centroidal distance is 0.05 m.

Area of the region is 0.05 m x 0.05 m.

Step 3

Find the bending stress at point A using the relation:

The distance from neutral axis to point A (c) is 0.025 m.

While considering the...


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