Hello, can anyone help me solve this problem?
" An overcoming stress measurement in a mine at km gives normal stress of MPa in the N-S direction, 48 MPa in the E-W direction, and 51MPa in the NE-SW direction. Determine the magnitudes and directions of the principal stresses." Thank you

Question

Hello, can anyone help me solve this problem?
" An overcoming stress measurement in a mine at km gives normal stress of MPa in the N-S direction, 48 MPa in the E-W direction, and 51MPa in the NE-SW direction. Determine the magnitudes and directions of the principal stresses." Thank you

surry99 · Answer

If you refer to a mechanics of material book you will see how to obtain the principal stresses.

surry99 · Answer

you will find it helpful to draw and elemental stress cube and sketch the stress vectors