Insights Blog
-- Browse All Articles --
Physics Articles
Physics Tutorials
Physics Guides
Physics FAQ
Math Articles
Math Tutorials
Math Guides
Math FAQ
Education Articles
Education Guides
Bio/Chem Articles
Technology Guides
Computer Science Tutorials
Forums
Intro Physics Homework Help
Advanced Physics Homework Help
Precalculus Homework Help
Calculus Homework Help
Bio/Chem Homework Help
Engineering Homework Help
Trending
Featured Threads
Log in
Register
What's new
Search
Search
Search titles only
By:
Intro Physics Homework Help
Advanced Physics Homework Help
Precalculus Homework Help
Calculus Homework Help
Bio/Chem Homework Help
Engineering Homework Help
Menu
Log in
Register
Navigation
More options
Contact us
Close Menu
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Forums
Homework Help
Engineering and Comp Sci Homework Help
Beam section and shear stress.
Reply to thread
Message
[QUOTE="PhanthomJay, post: 4378635, member: 58874"] I am assuming firstly that your shear force load V acts perpendicular to the line AB. If you want to find the shear stress in the beam at location AB, using VQ/Ib, Q is determined by finding the area of the cross section above (or below) the line AB and multiplying that area by the distance from the centroid of that area to the centroid (Neutral Axis) of the entire cross section. Let's say the numerical result is 10 MPa. That is the shear stress in each leg at that point...the shear stress is assumed constant from left to right across the cross section along AB where the material is (sort of an average shear stress at that location along AB). If you want to find the the shear stress at say the bottom of the beam, using the same method, you would find Q = 0 and therefore no shear stress at the bottom. The shear stress would vary parabolically, in vertical direction, max at NA and 0 at bottom. I don't know if that answers your question. generally, yes, but remember, Q is max at the NA, but the shear stress is VQ/Ib, so you could have a case where the thicknesses "b" are not constant and you'd have to check locations where Q might be less, but the thickness ''b'' might be less also. (I am referring to plate thicknesses as 'b' and not 't', to avoid confusion with your original question about using T versus 2T). [/QUOTE]
Insert quotes…
Post reply
Forums
Homework Help
Engineering and Comp Sci Homework Help
Beam section and shear stress.
Back
Top