Given: A welded plate supports a force of P = 40 kN. The width of the plate is W =100 mm, and the thickness is t = 20 mm. The weld is at 45° from the vertical.
Req'd: Determine the normal stress in the weld sN .
| Practice Problem 8-1 (a) | Back | Index | Next |
|
Given: A welded plate supports a force of P = 40 kN. The width of the plate is W =100 mm, and the thickness is t = 20 mm. The weld is at 45° from the vertical. Req'd: Determine the normal stress in the weld sN . |
|
Sol'n: To determine the stress normal to the weld, one must use the stress transformation equations or the Stress Transformation Calculator. Due to the applied load there is only one non-zero stress in the initial x-y set of axes: sx = P/A = 40 kN/(2000 mm2) = 20 MPa, sy = txy = 0 Rotating the stress element by 45° gives: sN = (sx+0)/2 + (sx–0)cos(90)/2 + (0°)sin(90°) = sx/2 sN = 10 MPa |
| Top | Back | Index | Next |