Structural Reliability of Broadside of a Bulk Carrier

The ultimate bending moment and maximal shear stress of a bulk carrier with two structural forms ( single hull and double hull) are calculated separately by using the combined moment which is determined by stochastic process. Then the assessment of reliability is carried out. The re-sults indicate that by introducing the double-hull structure, the shear stress of side can be de-creased to half of that of the primary structure(50. 7%). but the effect on longitudinal strength is not obvious. Finally, the effects of different double-side skin widths on ultimate bending moment and the maximal shear stress are investigated, followed by proposals of the selection of the double-side skin width.