Load–Strength Interference Chapter 5 Load–Strength Interference © 2012 John Wiley & Sons, Ltd.

Figure 5.1 Distributed load and strength: (a) non-overlapping distributions, (b) overlapping distributions.

Figure 5. 2 Effect of safety margin and loading roughness Figure 5.2 Effect of safety margin and loading roughness. Load L’ causes failure of a proportion of items indicated by the shaded area.

Figure 5.3 Truncation of strength distribution by screening.

Figure 5.4 Failure probability–safety margin curves when both load and strength are normally distributed (for large n and n = 1) (Carter, 1997).

Figure 5.5 Characteristic regions of a typical failure probability–safety margin curve (Carter, 1997).

Figure 5.6 Failure probability–safety margin curves for asymmetric distributions (loading roughness = 0.3) (Carter, 1997).

Figure 5.7 Failure probability–safety margin curves for asymmetric distributions (loading roughness = 0.9) (Carter, 1997).

Figure 5.8 Load data (sampled at 10 s intervals).

Figure 5.9 Load-Strength distribution chart generated with Weibull++® for Example 5.3 (Reproduced by permission of ReliaSoft).