Material properties for finite element simulations
An
Institution of Mechanical Engineers product story
Edited by the Engineeringtalk editorial team
Oct 17, 2005
"Material properties for finite element simulations - getting it right" is a one day seminar to be held on 6th December 2005.
A better understanding of finite element analysis techniques will significantly reduce the difficulties often encountered in determining material properties.
"Material properties for finite element simulations - getting it right" is a one day seminar to be held on 6th December 2005.
Problems frequently occur when analysts attempt to obtain reliable material properties for modelling real-life problems using finite element software, but can be reduced by gaining a greater understanding of finite element software and its applications.
This seminar will address the best practice and the latest advances in the field of finite element simulations, including superplastic forming (SPF), constitutive equations, advances in the RS procedure and practical applications of state-of-the-art finite element simulation models.
Presentations include "Representation of material properties in FEM simulations using Bayesian neural networks", by Professor Harry Bhadeshia, Professor of Physical Metallurgy, University of Cambridge.
Finite element simulations of the processing of metals rely on an input of material properties.
These are frequently expressed in the form of so-called constitutive equations.
Although there is undoubtedly some physical basis in the equations used, the reality is almost always far more complicated.
Therefore, the equations are empirically fitted to the experimental data, assuming certain forms, which may or may not be justified and presents the difficulty of equation form preselection.
Neural networks in a Bayesian framework, a far safer and reliable method in the context of finite element simulations, will be outlined in this keynote address.
"Determining high temperature properties of weld materials" will be presented by Professor Tom Hyde, Head of the School of Mechanical, Materials and Manufacturing Engineering, University of Nottingham.
The paper will introduce some aspects related to the determination of creep properties of welds at elevated temperatures for FE modelling.
The experimental creep testing methods involved and the procedures for generating the material constants in creep and damage equations, for different constituent regions of welds, will also be presented, along with practical applications of these techniques.
Other presentations include: "Properties of steels for use in extreme hazard analysis of structures", "Material properties for FEA", "Collation, validations and presentation of data on metallic materials", "Material data for welding process simulations", "An overview of material behaviour modelling for FE simulation in superplastic forming" and "Improved evolutionary plasticity response of steels".
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