Numerical Modelling of the Change in Stiffness Properties of Cross-Ply Laminates Subjected to Large Bending Curvatures

A. Schmitz; Peter Horst

doi:10.4028/www.scientific.net/KEM.577-578.173

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 577-578Numerical Modelling of the Change in Stiffness...

Numerical Modelling of the Change in Stiffness Properties of Cross-Ply Laminates Subjected to Large Bending Curvatures

Abstract:

This paper presents a 3D unit-cell approach which enables the estimation of bending, inplaneand coupling stiffness properties in the sense of the classical laminated plate theory for arbitrarilyheterogeneous plates. Periodic boundary conditions which simultaneously allow for in-plane as wellas for bending and twist deformation modes are introduced. Additionally, bending experiments of glassfibre/epoxy cross-ply laminates with cracked outer layer at the tension side are conducted and the stiffnessdegradation due to these transverse cracks is compared to numerical results.

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Periodical:

Key Engineering Materials (Volumes 577-578)

Pages:

173-176

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.577-578.173

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Online since:

September 2013

Authors:

A. Schmitz, Peter Horst

Keywords:

Bending Experiment, Bending Representative Volume Element, Stiffness Degradation, Transverse Cracking

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