Engineering Computations: Volume 32 Issue 6

Consistent crystal plasticity kinematics and linearization for the implicit finite element method

Mark Messner, Armand Beaudoin, Robert Dodds

The purpose of this paper is to describe several novel techniques for implementing a crystal plasticity (CP) material model in a large deformation, implicit finite element…

Numerical study on characteristics of unsteady flow in a centrifugal pump volute at partial load condition

Lei Tan, Baoshan Zhu, Yuchuan Wang, Shuliang CAO, Shaobo Gui

– The purpose of this paper is to elucidate the detailed flow field and cavitation effect in the centrifugal pump volute at partial load condition.

A simple meshless method for challenging engineering problems

Arman Shojaei, Bijan Boroomand, Farshid Mossaiby

The purpose of this paper is to present a simple meshless solution method for challenging engineering problems such as those with high wave numbers or convection-diffusion ones…

Invariants of mesoscale thermal conductivity and resistivity tensors in random checkerboards

Ahmed S Dalaq, Shivakumar I. Ranganathan

– The purpose of this paper is to study the statistics of thermal conductivity and resistivity tensors in two-phase random checkerboard microstructures at finite mesoscales.

Strict upper and lower bounds of quantities for beams on elastic foundation by dual analysis

Li Wang, Mengwu Guo, Hongzhi Zhong

– The purpose of this paper is to acquire strict upper and lower bounds on quantities of slender beams on Winkler foundation in finite element analysis.

Automated element grouping and self-stress identification of tensegrities

Kambiz Koohestani

The determination of feasible self-stress modes and grouping of elements for tensegrities with predefined geometry and multiple self-stress modes is very important, though…

Seismic damage evaluation of reinforced concrete buildings with slit walls

Sergiu Andrei Baetu, Alex H Barbat, Ioan Petru Ciongradi, Georgeta Baetu

The purpose of this paper is to investigate a reinforced concrete multi-storey building with dissipative structural walls. These walls can improve the behaviour of a tall…

Optimization of a supersonic wind tunnel diffuser using genetic algorithm

Said Farahat, Seyyed Morteza Javadpour, Hesamodin Ebnodin Hamidi, Ebrahim Kadivar

The purpose of this paper is to find the optimum design of diffuser of supersonic wind tunnel in order to access the minimum overall pressure drop in wind tunnel, using…

An efficient method for seismic analysis of structures

A. Kaveh, H. Rahami, Iman Shojaei

The purpose of this paper is to present an efficient method for dynamic analysis of structures utilizing a modal analysis with the main purpose of decreasing the computational…

Robust and efficient handling of yield surface discontinuities in elasto-plastic finite element calculations

Johan Clausen, Lars Damkilde, Lars Vabbersgaard Andersen

The purpose of this paper is to present several methods on how to deal with yield surface discontinuities. The explicit formulations, first presented by Koiter (1953), result in…

A constraint and algorithm for stress-based evolutionary structural optimization of the tie-beam problem

Da-Ke Zhang, Sheng Liang, Yi-Chao Yang, Hai-Tao Zhou

The purpose of this paper is to present a constraint and corresponding algorithm enhancing the evolutionary structural optimization (ESO) method, aiming to circumvent its…

GFEM for modal analysis of 2D wave equation

André Jacomel Torii, Roberto Dalledone Machado, Marcos Arndt

– The purpose of this paper is to present an application of the Generalized Finite Element Method (GFEM) for modal analysis of 2D wave equation.

Yield surfaces of heterogeneous media with debonded inclusions

Deniz D. Somer, D Peric, Eduardo Alberto de Souza Neto, Wulf G Dettmer

The purpose of this paper is to present knowledge in estimating yield surfaces of heterogeneous media by use of homogenization, especially where the macroscopic behaviour is…

Hybrid Bishop-Hill model combined finite element analysis for elastic-yield limited design

Ribeka Takahashi, David T. Fullwood, Travis M. Rampton, Darrell J. Skousen, Brent L. Adams, Christopher A. Mattson

Microstructure-sensitive design (MSD), for optimal performance of engineering components that are sensitive to material anisotropy, has largely been confined to the realm of…

Prediction of torsional buckling behaviour of single-walled SiC nanotubes based on molecular mechanics

Reza Ansari, Mahdi Mirnezhad, Hessam Rouhi, Majid Bazdid-Vahdati

Based on the molecular mechanics approach, the purpose of this paper is to analytically investigate the torsional buckling behavior of single-walled silicon carbide nanotubes…