but, the problem ask detremine shear stress at P , not maximum shear stress at P...David Lewis said:
why we need to choose the greater ?David Lewis said:
The last part of the first line of the attachment is unclear. Does it say "... vertical shear force V = 3 kN" ?chetzread said:
Ya , so , what are you trying to say ?SteamKing said:
I'm asking for clarification of the problem statement is all. Part of image is too blurry for me to read.chetzread said:
Yes, it is...SteamKing said:
Do u know why Ixx is used here? Why not Iyy ?chetzread said:
If you would answer my questions in Posts 5 and 7, I could probably tell you.chetzread said:
Yes, it's vertical shear force of 3kN...SteamKing said:
Thanks.chetzread said:
Shear stress is the force per unit area that acts parallel to a surface. It is important to calculate because it helps determine the strength and stability of a structure or material.
Ixx and Iyy refer to the two principal moments of inertia, which are used to calculate shear stress. Ixx refers to the moment of inertia about the x-axis, while Iyy refers to the moment of inertia about the y-axis.
The moment of inertia to use for point P depends on the orientation of the shear force acting on the structure. If the shear force is acting parallel to the x-axis, then Ixx should be used. If the shear force is acting parallel to the y-axis, then Iyy should be used.
No, only one moment of inertia should be used for each calculation. Using both Ixx and Iyy may result in an inaccurate calculation of shear stress.
Yes, the material properties and cross-sectional shape of the structure should also be taken into account. Additionally, the location of point P and the magnitude of the shear force should be considered when determining the appropriate moment of inertia to use.
