Engineering Computations: Volume 37 Issue 4

Modeling and simulation of sheets ply separation induced by air flow

Xin He, XiaoPing Li, Jinrong Yang

The purpose of this paper is to investigate the mechanism of sheets ply separation induced by air flow through numerical simulation with two-way FSI (fluid-structure interaction…

Numerical analysis of pump-signal-direction effect on the performance of EDFA systems

Ufuk Parali, Cahit Pinar

The purpose of this study is to develop new tandem configurations of erbium-doped fiber amplifier (EDFA) using all possible pump-signal-direction schemes in simulation to identify…

Expedited antenna optimization with numerical derivatives and gradient change tracking

Anna Pietrenko-Dabrowska, Slawomir Koziel

The purpose of this study is to propose a framework for expedited antenna optimization with numerical derivatives involving gradient variation monitoring throughout the…

Gas evolution and the effects on ionic transport inside the lithium-ion battery

Na Li, Lijun Fu, Kecheng Jiang

Gas evolution within lithium-ion batteries (LIBs) gives rise to safety concerns that question their applicability. The gas evolution is not only the result but also the inducement…

A new discrete method for solution to consolidation problem of ground with vertical drains subjected to surcharge and vacuum loadings

Trong Nghia-Nguyen, Sanjay Kumar Shukla, Dang Dinh Chung Nguyen, Le Gia Lam, Phuoc H-Dang, Phu-Cuong Nguyen

This paper aims to present a new discrete method to predict average excess pore pressure and degree of consolidation for soft ground using prefabricated vertical drains under…

Advanced heavy water reactor control with the aid of adaptive second-order sliding mode controller

Rupam Gupta Roy, Dibyendu Ghoshal

Advanced heavy water reactor (AHWR) is a pressure tube type of heavy water reactor. It eliminates high-pressure heavy water coolant resulting in a reduction of heavy water leakage…

Variational h-adaption for coupled thermomechanical problems

Rohit Pethe, Thomas Heuzé, Laurent Stainier

The purpose of this paper is to present a variational mesh h-adaption approach for strongly coupled thermomechanical problems.

Is air moisture relevant on radiative heat exchange inside built environments?

Nuno Serra, Viriato Semiao

This paper aims to clarify the necessity of taking into account the commonly neglected radiation in built environments. Ignoring radiation within acclimatized spaces with moist…

Computational mechanics of the paddlefish rostrum

Guillermo A. Riveros, Felipe J. Acosta, Reena R. Patel, Wayne Hodo

The rostrum of a paddlefish provides hydrodynamic stability during feeding process in addition to detect the food using receptors that are randomly distributed in the rostrum. The…

Isogeometric independent coefficients method for fast reanalysis of structural modifications

Chensen Ding

This paper aims to provide designers/engineers, in engineering structural design and analysis, approaches to freely and accurately modify structures (geometric and/or material)…

Stability of laminated composite and sandwich FGM shells using a novel isogeometric finite strip method

Mohammad Amin Shahmohammadi, Mojtaba Azhari, Mohammad Mehdi Saadatpour, Saeid Sarrami-Foroushani

This paper aims to analyze the stability of laminated shells subjected to axial loads or external pressure with considering various geometries and boundary conditions. The main…

Numerical investigation into the stability of earth dam slopes considering the effects of cavities

Hawraa Alateya, Alireza Ahangar Asr

This study is an attempt to estimate the influence of the presence of cavities on the stability of slopes in earth dams under rapid drawdown conditions. The purpose of this paper…

A modified downhill simplex algorithm interpolation response surface method for structural reliability analysis

Hailiang Su, Fengchong Lan, Yuyan He, Jiqing Chen

Because of the high computational efficiency, response surface method (RSM) has been widely used in structural reliability analysis. However, for a highly nonlinear limit state…

Analysis of the concrete shrinkage effects on the real behavior of the spatial concrete and reinforced concrete structures using the thermal analogy

Ante Džolan, Mladen Kožul, Alen Harapin, Dragan Ćubela

This paper aims to present an approach for the numerical simulation of concrete shrinkage. First, some physical mechanisms of shrinkage are described and then the developed…

Green-Haar method for fractional partial differential equations

Muhammad Ismail, Mujeeb ur Rehman, Umer Saeed

The purpose of this study is to obtain the numerical scheme of finding the numerical solutions of arbitrary order partial differential equations subject to the initial and…

Rapid multi-objective optimization of antennas using nested kriging surrogates and single-fidelity EM simulation models

Slawomir Koziel, Anna Pietrenko-Dabrowska

This study aims to propose a computationally efficient framework for multi-objective optimization (MO) of antennas involving nested kriging modeling technology. The technique is…