How can we assume that the shear stress is constant over the cross-sectional area of the beam's web?

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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How can we assume that the shear stress is constant over the cross-sectional area of the beam's web?

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Step 1

Given

Shear stress

Cross-sectional area of the beam’s web

To find

Procedure to assume constant

Step 2

Consider a thin walled beam. We know that this type of beam can withstand transverse force which is parallel to the straight line through the centroids of the stiffeners. Hence the shear flow over the beam remains constant independent of the shapes of webs

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