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CURRENT & FUTURE TECHNOLOGIES IN AUTOMOTIVE ENGINEERING SIMULATION
The left hand graph in Fig. 4.3.5.2 represents a case in which a complex
model (1) gives a high degree of confidence, but at high cost; model (2)
gives only a slight reduction in confidence, but at a much reduced cost.
These are key considerations for the CAE engineer when defining best
practice, as has been already noted – indeed, there may be cases whether
model (2) should be considered Best Practice as a simpler approach can
save time, cost and avoid mistakes.
The right hand graph (Fig.4.3.5.2) shows a case in which both models (1)
and (2) are relatively high-cost, yet both provide low confidence, hence
identifying the need for a breakthrough technology.
Returning to Table 4.3.5.1, the lower right field of the table indicates that
long-term research is needed, and in some cases the modelling
requirements are not yet established. For example, one trend in material
development that clearly requires a significant modelling development is
nano-materials. Material characterisation, design methods, and simulation
techniques are essential to better understand key phenomena—in particular
the structure-property relationships at different scales—to improve reliability
and to extend the modelling capability for design and application of these
new materials.
Other specific Breakthrough Technologies topics for material modelling
could include:
• Modelling of micro-structural evolution in materials processing and
under loading
• Modelling of multi-material behaviour
• Modelling of joining/bonding/adhesive behaviour under loading
conditions
• Multi-Physics approach (coupled analysis)
4.3.6 Development of a Methodology for Materials Characterisation
Clearly the time and resources available within the AUTOSIM project do not
permit detailed analysis of all possible aspects of material modelling.
Nevertheless, a number of useful papers on particular topics have been
presented at the technical workshops (see Section 6). These have identified
Best Practice in a number of specific fields and highlight where
Breakthrough Technologies are needed.
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SIXTH FRAMEWORK PROGRAMME PRIORITY [6.2] [SUSTAINABLE SURFACE TRANSPORT]
012497 AUTOSIM