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Von Mises Stress

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k111er

Materials
Jan 29, 2003
19
CA
Can anyone suggest a reference for a simplified definition of Von Mises Stress (preferably one that does not require vector math, or use of a Mohr Circle) I need to be able to explain this to non-engineers...
Your help would be appreciated.
 
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Thanks, CoryPad. I've been checking the efunda site today, and had found that as well. If you come across anything else suitable, please let me know.
 
The following definition was essentially stated on the website mentioned above. This is what I have used to explain Von Mises to engineers and some nonengineers. I'll use engineering terms in parentheses. This is not rigorous, but it's accurate.

"Materials are generally tested by stretching a piece of metal (a uniaxial tension test). Real parts have much more complicated loads--twisting, bending, shearing, etc. Von Mises stress is a calculation which takes these complicated loads and figures out what their stretching (uniaxial tension) equivalent is. With this Von Mises stress, people can compare complicated loading (stresses) in a part to the simple values (uniaxial tension) which are published in books)."

Brad
 
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