Engineering Computations: Volume 33 Issue 4

Turbulence models assessment for separated flows in a rectangular asymmetric three-dimensional diffuser

Lipeng Lu, Luyang Zhong, Yangwei Liu

The purpose of this paper is to present a full three-dimensional (3D) computational fluid dynamics (CFD) analysis of a rectangular asymmetric 3D diffuser utilizing seven…

Using genetic algorithms to improve support vector regression in the analysis of atomic spectra of lubricant oils

Carlos Fernandez-Lozano, Francisco Cedrón, Daniel Rivero, Julian Dorado, José Manuel Andrade-Garda, Alejandro Pazos, Marcos Gestal

The purpose of this paper is to assess the quality of commercial lubricant oils. A spectroscopic method was used in combination with multivariate regression techniques…

Using fuzzy logic control approach and model reduction for solving frictional contact problems

H Do, F Massa, T Tison

The purpose of this paper is to expand the previously published fuzzy logic controller for contact method to normal frictionless contact for solving mechanical frictional…

A solution of transient rolling contact with velocity dependent friction by the explicit finite element method

Xin Zhao, Zili Li

– The purpose of this paper is to develop a numerical approach to solve the transient rolling contact problem with the consideration of velocity dependent friction.

Simulation-driven design of compact ultra-wideband antenna structures

Slawomir Koziel, Adrian Bekasiewicz

– The purpose of this paper is to investigate strategies and algorithms for expedited design optimization and explicit size reduction of compact ultra-wideband (UWB) antennas.

Inverse system method for dynamic loads identification via noisy measured dynamic responses

Lei Wang, Xiaojun Wang, Xiao Li

– The purpose of this paper is to focus on the influences of the uncertain dynamic responses on the reconstruction of loads.

Inverse surrogate modeling for low-cost geometry scaling of microwave and antenna structures

Slawomir Koziel, Adrian Bekasiewicz

The purpose of this paper is to investigate strategies for expedited dimension scaling of electromagnetic (EM)-simulated microwave and antenna structures, exploiting the…

Damage mechanics based model for low-rise infilled RC frames incorporating neural networks

Khalid Abou El-Ftooh, Ahmed Atta, Ayman Ahmed Seleemah, Salah El-Din Fahmy Taher

Separately, nonlinear finite element analysis, artificial neural networks (ANNs) and continuous damage mechanics (CDM) attracted many investigators to model masonry…

Calibrating the microscopic properties of quartz sand with coupled CFD-DEM framework

Sayed M. Derakhshani, Dingena L. Schott, Gabriel Lodewijks

The macroscopic properties of dried sand can be correctly modelled when the accurate determination of the microscopic properties is available. The microscopic properties…

Parallel computations in nonlinear solid mechanics using adaptive finite element and meshless methods

Zahur Ullah, Will Coombs, C Augarde

A variety of meshless methods have been developed in the last 20 years with an intention to solve practical engineering problems, but are limited to small academic…

Forming limit prediction for two-stage aluminum alloy sheet forming process considering the effect of normal stress

Feifei Zhang, Jieshi Chen, Jun Chen

– The purpose of this paper is to analyze theoretically the influence of normal stress on the formability of aluminum alloy sheets in non-linear strain paths.

Reliability estimation for aluminum alloy welded joint with automatic image measurement of surface crack growth

Qizi Huang Peng, Tianyu Liu, Quan Sun, Wenwei Huang

As an important connecting component, the reliability of aluminium alloy welded joints influences the whole structural effectiveness and stability of equipment. The…

Tensile test simulation of high-carbon steel by discrete element method

Guangming Chen, Dingena L. Schott, Gabriel Lodewijks

The tensile test is one of the fundamental experiments used to evaluate material properties. Simulating a tensile test can be a replacement of experiments to determine…

Low-cost multi-objective optimization and experimental validation of UWB MIMO antenna

Slawomir Koziel, Adrian Bekasiewicz

– The purpose of this paper is to validate methodologies for expedited multi-objective design optimization of complex antenna structures both numerically and experimentally.

Thermomechanical modeling of fiber reinforced material including interphasial properties and its application to epoxy/glass composites

Marko Bozic, Robert Fleischhauer, Michael Kaliske

The purpose of this paper is to investigate of interphasial effects, including temperature dependency, within fiber reinforced polymers on the overall composite behavior…

Seismic assessment of low ductile RC structures: buildings from before the modern seismic codes

João Dias-Oliveira, H Rodrigues, Humberto Varum

When a numerous amount of buildings was built in reinforced concrete, in a period when the regulations did not have the design philosophy for the occurrence of…