Reliability is one of the main indicators structural elements mechanical safety. The choice stochastic models an important task in reliability analysis for describing variability random variables with aleatory and epistemic uncertainty. article proposes a method RHS (rectangular hollow sections) steel truss joints based on p-boxes approach. consist two boundary distribution functions that creat...

In this work, the particle swarm optimization method is employed for the reliability-based optimal design of statically determinate truss structures. Particle swarm optimization is inspired by the social behavior of flocks swarms of birds and insects particles . Every particle’s position represents a specific design. The algorithm searches the design space by adjusting the trajectories of the p...

—Multivariate analysis of fish morphometric truss elements for stock identification, description of new species, assessment of condition, and other applications is frequently conducted on data sets that have sample sizes smaller than those recommended in the literature. Minimum sample size recommendations are rarely accompanied by empirical support, and we know of no previous assessment of mini...

Cold-formed steel roof truss systems that use complex stiffener patterns in existing hat shape members for both top and bottom chord elements are a growing trend in the North American steel framing industry. When designing cold-formed steel sections, a structural engineer typically tries to improve the local buckling behavior of the cold-formed steel elements. The complex hat shape has proved t...

In this paper a three-dimensional finite element (FE) model of carbon nanocones (CNCs) is proposed and used for obtaining Young\'s modulus of CNCs. In this model, stretching and bending forces between carbon atoms are simulated using truss elements in ANSYS software. Then the model is subjected to the tension and by obtaining the stiffness of the CNC and using elasticity theory, Young’s modulus...

This paper presents an application of a two-step finite element model updating methodology to a 3D truss bridge model, with the inertial moment and elastic modulus as variables. First, the sensitivity of the change in modal parameters to variations in the physical parameters were analyzed. Based on these sensitivity analyses, the parameters that can be updated were determined. Next, the optimiz...