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Multi-wavelenghts shearography

Objective



The MuWaS project aims to the deve!opment of advanced
sensor techniques for fast, non contact, fullfield
measurement of deformation gradients and strains. The
application of these techniques will lead to an improved
material characterization and to quick and reliable
optimization of design and structures of industrial
components. This will make quality "measurable", increase
the integrity of structures and gain in optimized safety
of industrial products.

The MuWaS project is based on an EC funded feasibility
award. In continuation of this study the topic of this
proposal will be concentrated on the transfer of
shearographic techniques into industrial engineering. An
actual demand arises from automotive, energy and material
testing industries.

The object under investigation will be simultaneously
illuminated by multiple laser wavelengths and the images
recorded with a colour CCD camera. This enables the
substitution of phase shift procedures and simultaneous
3D measurement.

Numerical data analysis and mathematical modelling is
focused on an improved material characterization by the
determination of the sample s response on different
loads. An assessment of reliability and residual lifetime
of industrial components, an approximation of relevant
parameters for production control and quality rating
ought to be accessible.

A MuWaS measuring system will be designed, protyped and
tested in different industrial areas: automotive
applications (test on the road), energy industries (off
shore structures), material testing.

Coordinator

DR. ETTEMEYER GMBH & CO.
Address
72/207,Memminger Strasse 72/207
89231 Neu-ulm
Germany

Participants (5)

CENTRO RICERCHE FIAT S.C.P.A
Italy
Address
50,Strada Torino, 50
10043 Orbassano
CRANFIELD UNIVERSITY
United Kingdom
Address
Wharley End, Cranfield
MK43 0AL Cranfield - Bedfordshire
Institut für Laserrtechnologien in der Medizin und Meßtechnik ander Universität Ulm
Germany
Address
12,Helmholzstraße 12
89081 Ulm
SWISS FEDERAL LABORATORIES FOR MATERIALS TESTING AND RESEARCH
Switzerland
Address
129,Ueberlandstrasse 129
8600 Duebendorf
Zwick GmbH & Co.
Germany
Address
11,August-nagel-straße
89079 Ulm