PHYS 270 Chapter Notes - Chapter 9: Free Surface, Principal Curvature
Document Summary
The line method procedure: you can find the normal and shear strains in the local coordinate system by following these, step 4: calculate normal and shear strains in the n and t directions. Methods of equations: sign convention: is where the angle describing the orientation of the local coordinate system is positive in the counter clockwise direction from the x-axis, when. Is acting alone: step 1: view the axes of the n, t coordinate system as two lines. Due to normal strain in the x direction, the lines in the n and t directions deform to n1 and t1: step 2: draw a rectangle with a diagonal at an angle as shown above. Delta n can be related to delta x as shown: step 3: we will let point p move to point p1 due to strain. Pnpp1 are: when is acting alone, the above calculations can be used to step 3.
