The discussion revolves around the calculation of shear stress at a specific point (P) in a structural member, focusing on the choice between using the moment of inertia about the x-axis (Ixx) versus the y-axis (Iyy). Participants explore the implications of this choice in the context of shear stress calculations, referencing the formula τ = (V)(Q)/(I)(t). The conversation includes elements of homework-related inquiry and technical reasoning.
Participants express differing views on the necessity of comparing Ixx and Iyy, with some advocating for this comparison while others emphasize the specific context of the shear stress calculation at point P. The discussion remains unresolved regarding the best approach to take.
There are indications of missing assumptions regarding the clarity of the problem statement, as well as the implications of the shear force's direction on the choice of moment of inertia.
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:
