I have uploaded a question and solution. I am unsure what some of it is. What do
ID: 2257525 • Letter: I
Question
I have uploaded a question and solution. I am unsure what some of it is.
What do the variables in the 2nd formula mean? Vr, Q, I, t, Yc. And how are their corresponding values obtained.
The solid 100-mm-diameter shaft shown in Fig. 7-55a is subjected to an axial compressive force P = 200 kN and a vertical force V = 100 kN. For point A on the outside surface of the shaft, determine Figure 7-55 The x- and y-components of stress. The principal stresses and the maximum shearing stress at the point. SOLUTION Since point A is on the outside surface (a free surface) of the shaft, a st plane stress exists at the point. The coordinate system is selected as s in Fig. 7-556. This is the same coordinate system for which the equ in this chapter were developed. Passing a transverse plane through and isolating the segment of the shaft to the right of point A results free-body diagram shown in Fig. 7-55c. The internal forces on the trans cross section are an axial compressive force F = 200 kN, a shear force 100 kN, and a moment Mr = 50 kN m. The directions of the stresses left face of the element are in accordance with the directions of the that produce the stresses, that is, in the directions of the internal a These stresses are shown in Fig. 7-55d. The magnitudes of the stress determined as follows. sigma x = F / A = 200(103) / (pi / 4)(0.100)2 = 25.46(l06)N/m2 = 25.46 MPaExplanation / Answer
Q is the compressive yield
Q can be calculated by multiplying compressive yield and area of the object
t is the diameter of the shape
I is the second moment of interia similar to J
A is obtained since area of circle is divided by 2
and other values are obtained by formula hence no need to worry