In this study, the structural reliability of plate-stiffened prismatic pressure vessels was analyzed over time. A analysis performed using a time-dependent method based on response surface (RSM). The vessel had rectangular cross-section with repeated internal load-bearing structures. For analysis, structure modeled as strip, and to identify changes in index when general corrosion pitting occurr...

One of the solutions of the Helmholtz equation is the vortex beams. In the recent decades, production and applications of these types of beams have found serious attentions. Determination of the vortex beam topological charge and its sign are very important issues. Odd number of reflections of the vortex beam changes its vorticity. In this paper, we have used a q-plate to generate a vortex beam...

This paper proposes a hybrid WAAM (wire arc additive manufacturing) and milling process (HWMP), and highlights its application in the fabrication of stiffened panels that have wide applications in aviation, aerospace, and automotive industries, etc. due to their light weight and strong load-bearing capability. In contrast to existing joining or machining methods, HWMP only deposits stiffeners l...

As the key load-bearing component of spacecraft, strength evaluation stiffened plate structures faces two challenges. On one hand, simulation results are sometimes inaccurate, due to simplification true loading conditions and modeling details. other data from sensors cannot provide full-field information structure, which may result in misjudgment structural state. To this end, a digital twin me...

This paper proposes an explicit method for topology optimization of stiffened plate structures. The present work is devoted to simultaneously optimizing stiffeners’ shape, size and layout by seeking the optimal geometry parameters a series moving morphable components (MMC). stiffeners with straight skeletons curved are considered enhance modeling capability current approach. All represented und...

The objective of this study is to compare the performance for welded beam-column joints in aluminum structures using moment-rotation diagrams and evaluate influence welding on joint rigidity. A nonlinear numerical calculation beam–column performed finite element method. Material geometric nonlinearities were included model. connection was analyzed two cases: variants with without stiffener plat...