- #1
Sirius
- 6
- 2
My question is simple. Why do we need 9 different quantities, ie 1 normal stress and 2 shear stresses on 3 different planes, to define stress at a point?
example: http://www.geosci.usyd.edu.au/users/prey/Teaching/Geol-3101/Strain/stress.html
I think it should be enough to define the 3 stresses (normal and 2 shear) on a single plane through the point. For any other plane just use the projection of the 3 above to get the new values. Shouldn't this work?
TIA :-)
example: http://www.geosci.usyd.edu.au/users/prey/Teaching/Geol-3101/Strain/stress.html
I think it should be enough to define the 3 stresses (normal and 2 shear) on a single plane through the point. For any other plane just use the projection of the 3 above to get the new values. Shouldn't this work?
TIA :-)