Hi, i was wonderwing why with the normal stress at B the moment Mx * Cy is minus. can you explain how to set up the correct equation for the normal stress. Because often i had a correct answer but the minus and pluses different. Determine the normal stress (A) at point A using the relation:0A = +²+M₁²₁ (4)Here, P is the vertical load acting, A is the cross section area, I, is the moment of inertia about x axis, I, is themoment of inertia about y axis, c, is the distance from point A to the origin along y axis, c, is the distancefrom point A to the origin along x axis, M, is the moment along x axis, and My moment alongy axis.Substitute -800 x 10³ N for P, 0.09 m² for A, 35 x 10³ Nm for M, 0.675 x 10-³ m² for I, 0.675 x 10-³ m²for Iy, 20 x 10³ N-m for My, 0.15 m for cy, and 0.15 m for c, in Equation (4).-800(10³)GA =0.09(35x10³)x0.150.675 (10³)20x10²x0.150.675(10-³)= 3.33333 MPa (T)Hence, the normal stress (A) at corner A of the column is 3.33 MPa (T).Determine the normal stress (8) at point B using the relation:Mycy(5)08 = +Here, P is the vertical load acting, A is the cross section area, I, is the moment of inertia about x axis, I, is themoment of inertia about y axis, cy is the distance from point A to the origin along y axis, c, is the distancefrom point A to the origin along x axis, M, is the moment along x axis, and My moment alongy axis.Substitute -800 x 10³ N for P, 0.09 m² for A, 35 x 10³ Nm for Mx, 0.675 x 10-³ m² for I, 0.675 x 10-³ m²for Iy, 20 × 10³ N-m for My, 0.15 m for cy, and 0.15 m for cx in Equation (5).(35x10³)x0.150.675 (10-³)--800(10³)0.0920x10²x0.150.675 (10³)= -12.22 MPa= 12.22 MPa (C)Hence, the normal stress (8) at corner B of the column is 12.2 MPa (C).OB = Show the diagram of direction of force and moment as shown in Figure 1.300 KNMxZ500 KN-800 PP = -800 KNMyJFigure 1Let the negative sign of the force indicates the direction of the force acting downward M, and net momentalong y at My.Calculate the resultant force acting the center of block due to vertical loads.Σ F, = (FR),-500-300 = PFind the value of moment acting on block along x-axis.300 (0.05)-500 (0.1) = Mx15 - 50 = M,M₂ = -35 kN - m

From figure given below it is clear that the direction of moment about x-axis (Mx) and y-axis (My)…

Hi, i was wonderwing why with the normal stress at B the moment Mx * Cy is minus. can you explain how to set up the correct equation for the normal stress. Because often i had a correct answer but the minus and pluses different.

Hi, i was wonderwing why with the normal stress at B the moment Mx * Cy is minus. can you explain how to set up the correct equation for the normal stress. Because often i had a correct answer but the minus and pluses different.

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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