Process & Manufacturing

Process and manufacturing - Summary of issues
Gerrit-Jan Dop, SKF - The Netherlands Stefano Odorizzi, Engin Soft – Italy

Industrial requirements
Variety of processes / Variety of materials / Human/cultural aspects (role of experience) / Time constraints / Process simulation as part of the design chain
Summary of issues
To incorporate empirical knowledge in analytical (FEA) tools / How to obtain reliable validation and verification data / Multi scale modeling / How to couple various commercial and/or proprietary programs / How to extend product life through process optimization / How to obtain and apply failure criteria (forming limit diagrams) / Fundamentals of material models / How to obtain material data in strain, temperature, strain rate range of process / How to obtain process data (friction, heat transfer coefficients..) / How to analyse multi (2) phase systems with commercial codes / How to translate material properties that are generated during the process into final product performance

Simulation of 3D metal forming processes of axi-symmetric products
Gerrit-Jan Dop, SKF Engineering & Research Centre, Nieuwegein, The Netherlands
Frequently experienced FEA related difficulties: loss of volume due to arbitray remeshing / exceeding max. limit on available stress-strain data / almost rigid body motions at process start-up / numerical instabilities (from contact algorithm?) / lack of validation data
part 2

FE-Modelling of Composites - Consolidation and Forming
Maciej Wysocki, Ragnar Larsson, CTH / Staffan Toll, CTH
Motivation and aims of the study / Continuum Framework and Constitutive equations / Numerical example / Concluding remarks