Experimental characterisation and modelling of nonlinear stress-strain behaviour and strain rate effects for unidirectional carbon-epoxy

• Type: Article in International Conference Proceedings Book
• Date: 2014

Authors

Koerber, H (Author) Other; Vogler, M (Author) Other; Kuhn, P (Author) Other; Camanho, PP (Author) FEUP

Conference proceedings International

Title: 15th Power Systems Computation Conference, PSCC 2005

15th Power Systems Computation Conference, PSCC 2005

22 August 2005 through 26 August 2005

Indexing

Scopus - 2 Citations

Other information

Authenticus ID: P-00G-N37

Abstract (EN): The mechanical response of IM7-8552 was investigated for transverse tension and transverse tension/in-plane shear loading at static and dynamic strain rates using transverse tension and off-axis tension specimens. The dynamic tests were carried out on a split-Hopkinson tension bar at axial strain rates of 100 s-1, using high speed photography and digital image correlation during the data reduction. From the measured axial strengths the failure envelope for the combined stress state was derived for both strain rates and compared with the Puck IFF Mode A failure criterion. The measured axial stress-strain response was simulated using a fully 3D transversely isotropic elastic-viscoplastic constitutive model. A very good correlation between the measured and numerically predicted stress-strain response was achieved for all specimen types and strain rate regimes.

Language: English

Type (Professor's evaluation): Scientific