EARTH238 Lecture Notes - Lecture 7: Ellipse
30 Aug 2016
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Stress on a plane: stress vs force in 2d. Fn normal force, fs shear force. Divide by area to get stress (normal/shear) Theta is the angle between stress and the plane ( between the stress but is normal to the plane) A2 results when the original area has a force applied on it: stress at a point (3d) Principal planes of stress are perpendicular to each other (sigma 1,2,3) On each face stress is applied (6 faces) has two components (shear and normal: 3 axes (xy,xx,xz) for plane normal to x (for y it would be y in front, mohr circle. Draw a circle along two principal axes (shear stress and shear normal x) Draw a line from the center of the circle to a point p with angle 2 theta.
