2006 | OriginalPaper | Chapter
Effect of Strain Rate on Mechanical Properties of Reinforced Polyolefins
Authors : Marcus Schossig, Christian Bieroegel, Wolfgang Grellmann, Reinhard Bardenheier, Thomas Mecklenburg
Published in: Fracture of Nano and Engineering Materials and Structures
Publisher: Springer Netherlands
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This paper deals with results of high-speed tensile tests on glass-fibre reinforced thermoplastic materials. Starting point of the investigations is the fact, that requirements for a modern material have been steadily increased. One reason here is the increasing use of computer-aided design over the past years. Especially for the automotive industry, not only the mechanical properties as results of quasi-static tests are of interest. According to EuroNCAP crash tests, strain rates up to 200 s
−1
can be observed in the region of crash boxes at 64 km/h initial speed (Fig. 1a) [
1
,
2
]. Therefore, it is necessary to perform dynamic tests with strain rates up to maximum values of 10
4
–10
6
s
−1
[
3
,
4
]. For example, with commercially available servo-hydraulic testing machines strain rates between 10
−3
to 10
3
s
−1
can be realized (Fig. 1b).