Search · four archives
Search · four archives
14 papers · ranked by Valyu relevance
Van Thuy Tran, Huu Loc Nguyen, Giulia Pascoletti
The nut factor is a critical parameter that defines the relationship between tightening torque and axial preload in bolted joints. Accurate estimation of this coefficient is essential to ensure joint integrity and reliability. This study presents a controlled experimental investigation to evaluate the effects of three…
Neil Vaz, Kisung Lim, Jaeyoo Choi, Hyunchul Ju + 1 more
Polymer Electrolyte Membrane Fuel Cells (PEMFCs) have emerged as a pivotal technology in the automotive industry, significantly contributing to the reduction of greenhouse gas emissions. However, the high material costs of the gas diffusion layer (GDL) and bipolar plate (BP) create a barrier for large scale commercial…
Chun-Yi Zhang, Ze Wang, Cheng-Wei Fei, Zhe-Shan Yuan + 2 more
'Wen-Zhong Tang'] The effectiveness of a model is the key factor of influencing the reliability-based design optimization (RBDO) of multi-failure turbine blades in the power system. A machine learning-based RBDO approach, called fuzzy multi-SVR learning method, was proposed by absorbing the strengths of fuzzy theory…
Damian Sokołowski, Marcin Kamiński, Luigi Calabrese, Angelo Marcello Tarantino + 3 more
'Angelo Marcello Tarantino' 'Carmelo Majorana' 'Raimondo Luciano' 'Michele Bacciocchi'] This paper proposes the framework for reliability-based design optimization (RBDO) of structural elements with an example based on the corrugated web I-girder. It tackles the problem of topological optimization of corroding…
Muayad Habashneh, Majid Movahedi Rad
The aim of this paper is to integrate the reliability-based analysis into topology optimization problems. Consequently, reliability-based topology optimization (RBTO) of geometrically nonlinear elasto-plastic models is presented. For purpose of performing (RBTO), the volume fraction is considered reliable since that…
Yancang Li, Zhen Yan
With the increase in system complexity, the intelligent heuristic optimization methods have received more and more attention on system reliability analysis. However, the objective functions and constraint conditions of system reliability are nonlinear. Thereby, a hybrid optimization method was proposed, based on the…
Dipti Singh, Neha Chand
This study introduces a novel Parallel Grasshopper Optimization Algorithm (p-GOA), specifically designed to address reliability optimization problems. Although several hybrid algorithms exist in this field, the proposed p-GOA distinctly differs through its parallel cooperative strategy. Unlike sequential methods that…
Chun-Yi Zhang, Zhe-Shan Yuan, Ze Wang, Cheng-Wei Fei + 1 more
To effectively perform the probabilistic fatigue/creep coupling optimization of a turbine bladed disk, this paper develops the fuzzy multi-extremum response surface method (FMERSM) for the comprehensive probabilistic optimization of multi-failure/multi-component structures, which absorbs the ideas of the extremum…
Mehdi Hajinezhadian, Behrouz Behnam
Offshore platforms are considered critical infrastructure as any disruption in their lifetime service can rapidly result in a great loss to arise. While these structures are often designed for their initial construction cost, it is worth considering a lifetime-based design so that both direct and indirect costs are…
Lin Feng, Peng-Da Li, Xiao-Xu Huang, Yu-Fei Wu + 2 more
'Marcin Masłowski'] Fiber-reinforced polymers (FRPs) provide promising prospects for replacing steel bars in traditional reinforced concrete structures. However, the use of FRP as tension bars in concrete beams leads to insufficient ductility because of its elastic characteristics. A newly developed…
Hossam A. Nabwey, Adel A. El-Faheem, Mohammed Ashraf Denguir, A. M. Rashad + 1 more
'A. M. Rashad' 'Ahmed M. Gemeay'] In this work, bridge network model with Rayleigh distribution lifetimes is used. Two main techniques are calculated to upgrade this model: reduction and redundancy techniques. In order to compare the effectiveness of the various approaches, the survival function, the mean time to…
Soliman Alkhatib, Ahmed Deifalla, Ahmed K. El-Sayed
The recent failure of buildings because of punching shear has alerted researchers to assess the reliability of the punching shear design models. However, most of the current research studies focus on model uncertainty compared to experimentally measured strength, while very limited studies consider the variability of…
Haibin Li, Yun He, Xiaobo Nie
Structural reliability analysis under uncertainty is paid wide attention by engineers and scholars due to reflecting the structural characteristics and the bearing actual situation. The direct integration method, started from the definition of reliability theory, is easy to be understood, but there are still…
Hady S. Abdel Hafez, Saber. M. Saleh, Mokhtar Said
The world is increasingly shifting toward sustainable and renewable energy systems due to limited fossil fuel sources as well as their negative environmental impacts. Remote coastal tourism facilities face additional challenges because of the high fuel transportation and operation costs. This study focuses on a…