Engineering Computations: Volume 15 Issue 1

Advanced solution methods in structural optimization based on evolution strategies

Manolis Papadrakakis, Nikolaos D. Lagaros, Georg Thierauf, Jianbo Cai

The objective of this paper is to investigate the efficiency of hybrid solution methods when incorporated into large‐scale optimization problems solved by evolution strategies…

Self‐designing structures: a practical approach

W.C. Christie, P. Bettess, J.W. Bull

Demonstrates the simple but effective application of a standard finite element program (PAFEC), and the associated geometric modelling code (PIGS), to the improvement of the…

Numerical evaluation of probabilistic fracture parameters using WSTRESS

Claudio Ruggieri, Robert H. Dodds

Describes a probabilistic methodology for fracture assessments of flawed structures constructed of ferritic steels using the research code WSTRESS. The probabilistic formulation…

On adaptive remeshing techniques for crack simulation problems

C. Koenke, R. Harte, W.B. Krätzig, O. Rosenstein

The simulation of fracture processes for discrete crack propagation is well established for linear‐elastic cracking problems. Applying finite element techniques for the numerical…

Analysis of free vibrations of helicoidal beams

S.A. Alghamdi, M.A. Mohiuddin, H.N. Al‐Ghamedy

As structural members, circular helicoidal bars are frequently used in the construction industry for a variety of practical and/or aesthetical reasons. While these bars…

Neural network‐based parameter estimation for non‐linear finite element analyses

Hiroshi Okuda, Shinobu Yoshimura, Genki Yagawa, Akihiro Matsuda

Describes the parameter estimation procedures for the non‐linear finite element analysis using the hierarchical neural network. These procedures can be classified as the neural…

An elastic‐viscoplastic finite element model for multimaterials: Formulation and experimental validation

Y. Chastel, C. Magny, F. Bay

A finite element model for multimaterial configurations is presented. The material behavior of each body within a composite material is given by an elastic‐viscoplastic…

On a mixed approach to the finite element solution of large strain elastoplastic problems

Tomazˇ Rojc

A mixed approach to large strain elastoplastic problems is presented in a somewhat different way to that usually used within the context of the additive split of the rate of…