Problem 902
Compare the maximum stress in bent rod 1/2 in. square, where the load P is 1/2 in. off center as shown in Figure P-902, with the maximum stress if the rod were straight and the load applied axially.
Most often, a structural member is subjected to different types of stresses that acts simultaneously. Such stresses are axial, shear, flexure, and torsion. Superposition method is used to determine the combined effect of two or more stresses acting over the cross-section of the member.
Axial stress
$$\sigma = \pm\dfrac{P}{A}$$
Shear stress
$$\tau = \dfrac{VQ}{Ib}$$
Flexural stress
$$\sigma_f = \dfrac{Mc}{I}$$
Torsional stress
$$\tau = \dfrac{T\rho}{J}$$
Hello ,please someone should help with out with these Diffrential equations
a. xdy + ydx = x^3 y^6 dx
b. cosysin2xdx +(cos^2y - cos^x)dy = 0
Hello,
We should get the length x , when the grabber can just hold the box.
I made two moment equations:
Then I put them together into one equation: 
And from that equation I found out x: 
Problem 885
Solve for the support moments in Problem 825 if the ends are perfectly fixed instead of simply supported.
1. (x^2 + 2xy - 4y^2) dx - ( x^2 - 8xy - 4 y^2)dy=0
2. y(9x-2y)dx-x(6x-y)dy=0; when: x=1; y=1/2
