Engineering Computations: Volume 17 Issue 4

Numerical modelling of double diffusion driven reactive flow transport in deformable fluid‐saturated porous media with particular consideration of temperature‐dependent chemical reaction rates

Chongbin Zhao, B.E. Hobbs, H.B. Mühlhaus, A. Ord, Ge Lin

Numerical methods are used to solve double diffusion driven reactive flow transport problems in deformable fluid‐saturated porous media. In particular, the temperature dependent…

Topological analysis of eigenvalues in engineering computations

R.V.N. Melnik

The dynamics of coupling between spectrum and resolvent under ε‐perturbations of operator and matrix spectra are studied both theoretically and numerically. The phenomenon of…

An effective method for discrete structural optimization

W. Gutkowski, J. Bauer, J. Zawidzka

Deals with an approximate, but very simple, method of finding the minimum of structural weight under static loads. The design consists of assigning an appropriate rolled profile…

Introduction of fixed grid in evolutionary structural optimisation

H. Kim, M.J. Garcia, O.M. Querin, G.P. Steven, Y.M. Xie

Introduces a faster and improved structural optimisation method which combines fixed grid finite element analysis (FG FEA) and evolutionary structural optimisation (ESO). ESO…

Shakedown optimal design of reinforced concrete structures by evolution strategies

S. Rizzo, R. Spallino, G. Giambanco

Approaches the shakedown optimal design of reinforced concrete (RC) structures, subjected to variable and repeated external quasi‐static actions which may generate the well‐known…

Experimental/numerical analysis of the collapse behavior of steel pipes

Andrea P. Assanelli, Rita G. Toscano, Daniel H. Johnson, Eduardo N. Dvorkin

The production of steel pipes with guaranteed external collapse pressure (e.g. high collapse casings for oil wells) requires the implementation of an accurate process control. To…

Digital bispectral analysis applied to stationary response of flexible lines

C.A.N. Dias, J.R.D. Petreche

In marine structures, the long‐term non‐stationary response of flexible lines, due to random environmental loads, may be regarded as successive short‐term stationary processes in…