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Materials (Basel). 2014 Jan 14;7(1):413-429. doi: 10.3390/ma7010413.

Non-Destructive Thermography Analysis of Impact Damage on Large-Scale CFRP Automotive Parts.

Author information

1
Chair of Processing of Composites, Montanuniversität Leoben, Otto Gloeckel-Strasse 2, Leoben 8700, Austria. alexander.maier@unileoben.ac.at.
2
Chair of Automation, Montanuniversität Leoben, Peter-Tunnerstraße 27, Leoben 8700, Austria. roland.schmidt@unileoben.ac.at.
3
Chair of Automation, Montanuniversität Leoben, Peter-Tunnerstraße 27, Leoben 8700, Austria. beate.oswald@unileoben.ac.at.
4
Chair of Processing of Composites, Montanuniversität Leoben, Otto Gloeckel-Strasse 2, Leoben 8700, Austria. ralf.schledjewski@unileoben.ac.at.
5
Christian Doppler Laboratory for Highly Efficient Composite Processing, Montanuniversität Leoben, Otto Gloeckel-Strasse 2, Leoben 8700, Austria. ralf.schledjewski@unileoben.ac.at.

Abstract

Laminated composites are increasingly used in aeronautics and the wind energy industry, as well as in the automotive industry. In these applications, the construction and processing need to fulfill the highest requirements regarding weight and mechanical properties. Environmental issues, like fuel consumption and CO₂-footprint, set new challenges in producing lightweight parts that meet the highly monitored standards for these branches. In the automotive industry, one main aspect of construction is the impact behavior of structural parts. To verify the quality of parts made from composite materials with little effort, cost and time, non-destructive test methods are increasingly used. A highly recommended non-destructive testing method is thermography analysis. In this work, a prototype for a car's base plate was produced by using vacuum infusion. For research work, testing specimens were produced with the same multi-layer build up as the prototypes. These specimens were charged with defined loads in impact tests to simulate the effect of stone chips. Afterwards, the impacted specimens were investigated with thermography analysis. The research results in that work will help to understand the possible fields of application and the usage of thermography analysis as the first quick and economic failure detection method for automotive parts.

KEYWORDS:

impact damage behavior; impact test; non-destructive testing; structural automotive parts; thermography analysis

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