Novel Testing Device for the Experimental Stress Concentration Analysis of Multilayer Textile Composites under In-Plane Compressive Load

Abstract:

An analytically based calculation tool for the stress-strain analysis of multilayer composite plate structures with cut-outs is developed which offers high potential to be used in a sense as an analytical sub-model in combination with FE-Analysis Systems. For its validation extensive numerical and experimental investigations have to be carried out. Especially the examination of structures loaded by in-plane compression does not seem to be realizable by conventional testing techniques. That is why a novel testing device for the experimental stress concentration analysis of notched thin plate structures under in-plane compressive load is developed and its application in combination with an adapted optical measurement system is demonstrated.

• Periodical: Key Engineering Materials (Volume 601)
• Pages: 7-11
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.601.7
• Online since: March 2014
• Authors: Bernd Grüber*, Werner Hufenbach, Robert Gottwald, Martin Lepper, Niels Modler, Bingquan Zhou
• Keywords: Experimental Investigation, In-Plane Compressive Load, Multilayer Textile Composites, Stress Concentration

References

[1] B. Grüber, Beitrag zur Strukturanalyse von anisotropen Schichtverbunden mit elastischen Einschlüssen und Bolzen, Diss. TU Dresden, (2004).

[2] W. Hufenbach, B. Grüber, R. Gottwald, M. Lepper, B. Zhou, Analytical and experimental stress concentration analysis of notched multilayered composites with finite outer boundaries. Mechanics of Composite Materials, Vol. 46, No. 5, S. 531-538, (2010).

DOI: 10.1007/s11029-010-9169-3

[3] W. Hufenbach, B. Grüber, M. Lepper, R. Gottwald, B. Zhou, An analytical method for the determination of stress and strain concentrations in textile-reinforced GF/PP composites with elliptical cutout and a finite outer boundary and its numerical verification, Archive of Applied Mechanics, Vol. 83, Issue 1, pp.125-135.

DOI: 10.1007/s00419-012-0641-5

[4] N.N., DIN EN ISO 14126, Faserverstärkte Kunststoffe - Bestimmung der Druckeigenschaften in der Laminatebene, December (2000).

DOI: 10.31030/8379431

[5] N.N., ASTM D 6484/D 6484M – 04, Standard Test Method for Open-Hole Compressive Strength of Polymer Matrix Composite Laminates, (2004).

DOI: 10.1520/d6484-99

[6] N.N., Vorrichtung zur mechanischen Werkstoffprüfung, Gebrauchsmuster DE20314761U1, Dresden, (2003).

[7] W. Hufenbach, M. Lepper, B. Grüber, R. Gottwald, Vorrichtung zur einachsigen Druckprüfung schlanker Prüfkörper. Patentanmeldung DE102010052815A1, TU Dresden, (2010).

[8] http: /www. gom. com/de/messsysteme/bild-korrelation. html, March (2013).