Problem 1 LLAW: How far does residual stress push the assessment point past the FAL? β An A533B as-welded, low-temperature FAD walkthrough
One of the four A533B-1 welded-plate problems: the LLAW specimen β as-welded, β120 β, low load ratio. It is the first of the four to fracture (1.27 MN). This post walks step by step through entering, computing, and reading the FAD in mechCalc's BS 7910 Clause 7 Fracture Assessment Calculator, to see exactly how the residual K_I^S of 46 MPaΒ·m^0.5 pushes the deepest-point assessment point to K_r=2.59, far beyond the Failure Assessment Line.