On the Damage Evolution and the Mechanical Degradation of Glass-Fibre Non-Crimp Fabric Reinforced Epoxy Under Tensile Loading: Experimental and Finite Element Modelling

Authors: Gagel, Andreas; Müller, Christian; Schulte, Karl

Source: Multidiscipline Modeling in Materials and Structures, Volume 2, Number 1, 2006 , pp. 117-126(10)

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Abstract:

The stiffness and damage evolution in a quasi-static tensile loaded non-crimp fabric reinforced epoxy was measured. To determine the effective stiffness of the damaged material numerically a finite element analysis was performed. The finite element analysis bases solely on the measured ±45° and 90°-crack densities and on ply properties calculated by the Rule of Mixtures. The measured and calculated effective tensile stiffness were compared and a fair agreement could be found.

Keywords: POLYMER-MATRIX COMPOSITES (PMCS); MATRIX CRACKING; MECHANICAL PROPERTIES; DAMAGE MECHANICS; FINITE ELEMENT ANALYSIS (FEA); NON-DESTRUCTIVE TESTING

Document Type: Research article

DOI: http://dx.doi.org/10.1163/157361106775249961

Publication date: 2006-01-01