Annual Report 2016 - Mechanical Engineering

113 / 340

Non-destructive Testing 113
Non-destructive Testing
Quality control, non-destructive testing and structural health monitoring
Prof. Dr.-Ing. habil.
Christian U. Große
Project: MAI ZfP
The leading edge cluster, MAI Carbon pro-
vides the unique opportunity to promote
non-destructive testing of fiber-reinforced
polymers on a large scale and to establish
them in an industrial environment. Within
the aerospace context, non-destructive
testing has already been used success-
fully for years. However, its usage on
fiber-reinforced polymers in automobile
manufacturing and engineering is still
in the early stages. At the same time,
requirements vary widely within the
industrial sectors and therefore require
new approaches to testing. Quantities,
which the aerospace industry produces in
a year, may be produced daily in automo-
bile manufacturing. The objective of the
MAI ZfP project is to investigate which
testing methods are applicable in this
context. For this, a round robin test was
conducted with several industrial partners.
Technical aspects as well as economic
factors influence the assessment. Results
of the round robin test were presented at
the World Conference of Non-Destructive
Testing (WCNDT) in 2016 in Munich. The
overall goal is cost reduction in compo-
nent production in order to increase the
competitiveness of German companies.
Numerous NDT techniques are applied
during the project including ultrasound in
reflection (phased-array), optical lock-in
thermography, modal analysis and local
acoustic resonance spectroscopy. The
project ended in February 2016 and
was funded by the Federal Ministry of
Education and Research (BMBF) and the
Bavarian Ministry of Economic Affairs and
Media, Energy and Technology.
n The focus of the Institute of Nondestructive Testing in the field of
mechanical engineering in 2016 was to establish NDT methods for the
inspection of fiber reinforced materials (CFRP and GFRP) together with
partners in the automotive and aeronautic industry.
Phone +49.89.289.27221
Contact
Further research is conducted in the
field of wind energy: structural-health-
monitoring of tower and basement and
non-destructive testing of rotor blades.
In civil engineering, the focus was on
inspection techniques for constructions
Using ultrasound technology on a carbon composite
sample
of the infrastructure, the development
of self-healing techniques for concrete
and for the detection of vertical cracks in
concrete pavements of highways (solving
the blow-up problem).