For #1 draw a house from a side then draw the antenna with the measurement of how high above the roof it is. Now draw two lines, one from the bottom of the antenna to the ground and another from the top of the antenna to the ground. Look at your picture ask yourself which line would have the...
The reason why I did that is because the moment at the dead center of the bottom or the top is the greatest source of stress. I checked values for other points of the beam but this turned out to have the greatest stress. Indeed this was correct. Thanks for all the help.
I have not covered the Eigen values of the stress matrix. I have covered Mohr's circle but I think I solved it conceptually. After drawing the shear and moment diagrams and calculating some equations I found the maximum stress to come from bending in the top or bottom of the beam. So sigma...
Having a hard time with failure theories. Beam length 20 feet, 6"h x 4"w. sigma yield is 40 ksi. How to calculate the maximum distributed load the beam could carry using von Mises and Tresca failure theories. I have my shear and moment diagrams drawn and know they are right. I found that...