We study the problem of Michell trusses when the system of applied equilibrated forces is a vector measure with compact support. We introduce a class of stress tensors which can be written as a superposition of rank-one tensors carried by curves (lines of principal strains). Optimality conditions are given for such families showing in particular that optimal stress tensors are carried by mutual...

Evolution Strategies (ES) are a class of Evolutionary Algorithms based on Gaussian mutation and deterministic selection. Gaussian mutation captures pair-wise dependencies between the variables through a covariance matrix. Covariance Matrix Adaptation (CMA) is a method to update this covariance matrix. In this paper, the CMA-ES, which has found many applications in solving continuous optimizatio...

This report documents the results of a survey of current practices and technology for the evaluation and rehabilitation of historic metal truss bridges. It is intended to aid engineers in identifying solutions to typical problems found in older metal truss bridges, including inadequate strength, damage, deterioration, and inadequate height and width. This study included a literature search as w...

Understanding and controlling spreading processes in networks is an important topic with many diverse applications, including information dissemination, disease propagation and viral marketing. It is of crucial importance to identify which entities act as influential spreaders that can propagate information to a large portion of the network, in order to ensure efficient information diffusion, o...

Steel trusses are widely utilized in engineering structures, and their optimization is essential for enhancing structural performance reducing material consumption. Existing methods steel predominantly rely on the trial-and-error method, which not only inefficient but also inaccurate. Therefore, this study focused of using an efficient accurate methodology. Based a genetic algorithm finite elem...

In order to develop the dynamic effectiveness of structures such as trusses, application optimisation methods plays a significant role in improving shape and size elements. However, conjoining two heterogeneous variables, nodal coordinates cross-sectional elements, makes challenging problem that is nonlinear, multimodal, large-scale with constraints. To handle these challenges, evolutionary swa...