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Orthotropic criteria for transverse failure of non-crimp fabric-reinforced composites

Henrik Molker (Institutionen för tillämpad mekanik, Material- och beräkningsmekanik) ; Dennis Wilhelmsson (Institutionen för tillämpad mekanik, Material- och beräkningsmekanik) ; Gutkin Renaud ; Leif Asp (Institutionen för tillämpad mekanik, Material- och beräkningsmekanik)
Journal of composite materials (0021-9983). Vol. 50 (2016), 18, p. 2445-2458.
[Artikel, refereegranskad vetenskaplig]

In this paper, a set of failure criteria for transverse failure in non-crimp fabric-reinforced composites is presented. The proposed failure criteria are physically based and take into account the orthotropic character of non-crimp fabric composites addressing the observed lack of transverse isotropy. Experimental data for transverse loading out-of-plane in combination with in-plane loads are scarce. Therefore, to validate the developed criteria, experimental data are complemented with numerical data from a representative volume element model using a meso-micromechanical approach. The representative volume element model also provides a deeper understanding of how failure occurs in non-crimp fabric composites. Strength predictions from the developed set of failure criteria show good agreement with the experimental and numerical data.

Nyckelord: Carbon fibre composites; failure envelopes; representative volume element; textile fabrics; transverse strength

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Denna post skapades 2016-08-30. Senast ändrad 2016-09-01.
CPL Pubid: 240969