FEA into coloured 3DP - 3D MODELLING

From: Panayiotis Diamantopoulos (P.Diamantopoulos@sussex.ac.uk)
Date: Fri Mar 08 2002 - 16:33:01 EET

Dear Philip,

This seems an interesting RP application. It is also a good example of what
can be achieved by using different 3D software/hardware technologies in an
integrated way, as previously discussed in the list. I am not certain that
yet FEA software developers have thought of such possibility. However, this
can be achieved simply with some imagination and by combining the
appropriate formats.

Regarding the application itself, physically visualising FEA results can be
important. I hope that other list members will agree. For medical
applications, this could be used to demostrate specific simulation results
to surgeons and inform potential results of surgical actions or implant
performance. A list or even a picture of FEA results is not a very
informative way of producing conclusions for medical staff.

I have a question however, the FEA results on implant-bone interface is very
3D-Printing would provide an overall picture of the resulting stresses of
the whole model, but it does not provide transparent models. How do you
tackle this problem in order to get an insight view of the results (on
nail-cortical bone interface)? Have you developed more than one 3DP model?

I am not so certain if ending up with many models, instead of many pictures,
would be very helpful from the engineer's point of view. It seems more of a
better way of demonstrating specific results to non-engineering audience.
What do you think?

Best regards,


Panos Diamantopoulos, DPhil
Application & Development Manager
Bio-Medical Modelling Unit (BioModel)
School of Engineering
University of Sussex
Brighton BN1 9QT
Tel: +44 1273 877320
Fax: +44 1273 877341
Email: P.Diamantopoulos@sussex.ac.uk

----- Original Message -----
From: "philip" <philip@ait.ac.th>
To: <rp-ml@rapid.lpt.fi>
Sent: 08 March 2002 05:28
Subject: articles about FEA results into coloured 3DP ?

> Dear All,
> I was wondering if anyone could refer me to publications on the
> usefulness of the visualization of
> 3D stress distribution patterns obtained from FEA by means of a
> multi-coloured ZCorp 3DP model ?
> I believe that these coloured FEA-result models can be of great benefit
> to anyone involved in the early
> stages of product design and CAE. We performed some FEA studies of the
> stress distribution in a trochanteric
> gamma nail for a trochanteric fracture (proximal femur). We used the
> VRML format to transfer FEA results into the ZCorp software.
> Multi-coloured 3DP models were made from the average von Mises stress
> distribution patterns of both the TGN
> implant and the proximal femur model using Z-Corp's Z406 3DP machine.
> The new technique of multi-coloured visualization allows for a fully 3D
> visual interpretation of the stress distributions resulting from FE
> calculations.
> Could you please let me know if you have any references to articles
> about this ?
> Best regards from Bangkok,
> Philip Oris, M.Sc.
> project manager and sr. research associate BME
> Asian Institute of Technology, ISE program
> P.O. Box 4 Klongluang
> Pathumthani 12120
> Thailand
> Tel. +662-524.60.97
> Fax. +662-524.56.97
> philip@ait.ac.th
> For more information about the rp-ml, see http://rapid.lpt.fi/rp-ml/

For more information about the rp-ml, see http://rapid.lpt.fi/rp-ml/

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