Engineering Computations: Volume 35 Issue 2

Guest editorial

Influence of microstructure morphology on multi-scale modeling of low-alloyed TRIP-steels

The purpose of this study is to quantify the impact of the variation of microstructural features on macroscopic and microscopic fields. The application of multi-scale methods in…

A new sequential sampling method for constructing the high-order polynomial surrogate models

This paper aims to study the sampling methods (or design of experiments) which have a large influence on the performance of the surrogate model. To improve the adaptability of…

Statistical energy analysis for vibro-acoustic coupled system with fuzzy parameters

This paper aims to propose a novel statistic energy analysis method with fuzzy parameters to study the dynamic and acoustic responses of coupled system with fuzzy parameters…

A multi-objective robust optimization approach for engineering design under interval uncertainty

Engineering system design and optimization problems are usually multi-objective and constrained and have uncertainties in the inputs. These uncertainties might significantly…

Prediction of the yielding behaviour of ductile porous materials through computational homogenization

The purpose of this paper is to predict the yield locus of porous ductile materials, evaluate the impact of void geometry and compare the computational results with existing…

Design of material microstructures for maximum effective elastic modulus and macrostructures

In pure material design, the previous research has indicated that lots of optimization factors such as used algorithm and parameters have influence on the optimal solution. In…

An improved binary bat flexible sampling algorithm for reliability-based design optimization of truss structures with discrete-continuous variables

Reliability-based design optimizations (RBDOs) of engineering structures involve complex non-linear/non-differentiable performance functions, including both continuous and…

Statistical inference of empirical constituents in partitioned analysis from integral-effect experiments: An application in thermo-mechanical coupling

Partitioned analysis is an increasingly popular approach for modeling complex systems with behaviors governed by multiple, interdependent physical phenomena. Yielding accurate…

Deriving the transition probability matrix using computational mechanics

The combined effects of several complex phenomena cause the deterioration of elements in steel hydraulic structures (SHSs) within the US lock system: corrosion, cracking and…

Robust topology optimization for continuum structures with random loads

This paper aims to tackle the challenge topic of continuum structural layout in the presence of random loads and to develop an efficient robust method.

Construction of poly-ellipsoidal grain shapes from SMT imaging on sand, and the development of a new DEM contact detection algorithm

This paper aims to construct smooth poly-ellipsoid shapes from synchrotron microcomputed tomography (SMT) images on sand and to develop a new discrete element method (DEM) contact…

Constitutive modelling of mechanically induced martensitic transformations: Prediction of transformation surfaces

The purpose of this work is to apply a recently proposed constitutive model for mechanically induced martensitic transformations to the prediction of transformation loci…

Large-scale parallel computation for earthquake response spectrum analysis

As a practical engineering method, earthquake response spectra play an important role in seismic hazard assessment and in seismic design of structures. However, the computing…

Uncertain dynamic responses of imprecisely defined arbitrary order fractionally damped beam subject to various loads

Recently, fractional differential equations have been used to model various physical and engineering problems. One may need a reliable and efficient numerical technique for the…

Evaluation of the FMBEM efficiency in the analysis of porous structures

The purpose of this paper is to evaluate the efficiency of the fast multipole boundary element method (FMBEM) in the analysis of stress and effective properties of 3D linear…

A novel hybrid meshless method for seepage flows in non-homogeneous and anisotropic soils

The purpose of this paper is to extend the scaled boundary radial point interpolation method (SBRPIM), as a novel semi-analytical scheme, to the analysis of the steady state…

Sparse representation of delay differential equation of Pantograph type using multi-wavelets Galerkin method

The purpose of this study is an application of the multi-wavelets Galerkin method to delay differential equations with vanishing delay known as Pantograph equation.

Optimization of hybrid polymer composites under uniaxial traction

This study aims to achieve a “pseudo-ductile” behaviour in the response of hybrid fibre reinforced composites under uniaxial traction by solving properly formulated optimization…

Shape optimization of annular S-ducts by CFD and high-order polynomial response surfaces

This paper aims to design an optimal shape for an annular S-duct, considering both energy losses and exit flow uniformity, starting from a given baseline design. Moreover, this…

A novel multiobjective lognormal-beta differential evolution approach for the transformer design optimization

Real-world applications in engineering and other fields usually involve simultaneous optimization of multiple objectives, which are generally non-commensurable and conflicting…

Efficient hybrid algorithms to solve mixed discrete-continuous optimization problems: A comparative study

In real-world cases, it is common to encounter mixed discrete-continuous problems where some or all of the variables may take only discrete values. To solve these non-linear…

A novel nature-inspired optimization based neural network simulator to predict coal grindability index

Hardgrove grindability index (HGI) is an important physical parameter used to demonstrate the relative hardness of coal particles. Modeling of HGI based on coal conventional…

Large-scale dynamic and static simulations of complex-shaped granular materials using parallel three-dimensional discrete element method (DEM) on DoD supercomputers

The purpose of this paper is to extend complex-shaped discrete element method simulations from a few thousand particles to millions of particles by using parallel computing on…

Model-based multi-objective optimization of cure process control for a large CFRP panel

The purpose of this paper is to develop the multi-objective optimization approach and its numerical implementation to synthesise the model-base control for the part curing at…

Frequency domain analysis method of nonstationary random vibration based on evolutionary spectral representation

A novel frequency domain approach, which combines the pseudo excitation method modified by the authors and multi-domain Fourier transform (PEM-FT), is proposed for analyzing…