Multi-level optimisation and global sensitivity analysis of the probabilistic damage stability method for single hold ships

The probabilistic damage stability method offers great design freedom when used as a base of design. However, due to the complexity of the calculation and amount of parameters that influence the attained index, much of this freedom is not being harnessed by designers. This research tries to give the designer more insight in where to look when...

Integration of manufacturing and structural design of 3D concrete printed bridges

3D concrete printing (3DCP) is a new, innovative construction method in which concrete structures are produced layer-by-layer using a 3D printer. A printed concrete structure, can be self-supporting, which means no formwork is required anymore, increasing the freedom of form, while decreasing construction cost and material use. However, the...

Practical experience of sensitivity analysis: Comparing six methods, on three hydrological models, with three performance criteria

Currently, practically no modeling study is expected to be carried out without some form of Sensitivity Analysis (SA). At the same time, there is a large number of various methods and it is not always easy for practitioners to choose one. The aim of this paper is to briefly review main classes of SA methods, and to present the results of the...

Tree-based ensemble methods for sensitivity analysis of environmental models: A performance comparison with Sobol and Morris techniques

Complex environmental models typically require global sensitivity analysis (GSA) to account for non-linearities and parametric interactions. However, variance-based GSA is highly computationally expensive. While different screening methods can estimate GSA results, these techniques typically impose restrictions on sampling methods and input...