Consider a point in a structural member that is subjected to plane stress. Normal and shear stress magnitudes acting on horizontal and vertical planes at the point are Sx = 11 ksi, Sy = 31 ksi, and Sxy = 11 ksi.(a) Determine the principal stresses (σp1>σp2σp1>σp2) and the maximum in-plane shear stress τmaxτmax acting at the point.(b) Find the smallest rotation angle θpθp (counterclockwise is positive, clockwise is negative) that will rotate to principal directions. Then show these stresses in an appropriate sketch (e.g., see Figure 12.15 or Figure 12.16) Consider a point in a structural member that is subjected to plane stress. Normal and shear stress magnitudes acting on horizontal andvertical planes at the point are Sx = 11 ksi, Sy = 31 ksi, and Sxy = 11 ksi.(a) Determine the principal stresses (p1 > 2) and the maximum in-plane shear stress Tmax acting at the point.(b) Find the smallest rotation angle 0, (counterclockwise is positive, clockwise is negative) that will rotate to principal directions. Thenshow these stresses in an appropriate sketch (e.g., see Figure 12.15 or Figure 12.16)Answers:Opl =Op2 =Tmax =Op =SxySxOksi.ksi.ksi.

Given a point in a structural member that is subjected to plane stress. It is required to determine…

Answered: Determine the principal stresses…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Consider a point in a structural member that is subjected to plane stress. Normal and shear stress magnitudes acting on horizontal and vertical planes at the point are S_x = 11 ksi, S_y = 31 ksi, and S_xy = 11 ksi.
(a) Determine the principal stresses (σp1>σp2σp1>σp2) and the maximum in-plane shear stress τmaxτmax acting at the point.
(b) Find the smallest rotation angle θpθp (counterclockwise is positive, clockwise is negative) that will rotate to principal directions. Then show these stresses in an appropriate sketch (e.g., see Figure 12.15 or Figure 12.16)

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