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Identifying failure initiation in automotive structures made of NCF reinforced composites for hot spot analysis

Henrik Molker (Institutionen för tillämpad mekanik, Material- och beräkningsmekanik) ; Renaud Gutkin ; Silvestre Pinho ; Leif Asp (Institutionen för tillämpad mekanik, Material- och beräkningsmekanik)
ECCM17 - 17th European Conference on Composite Materials (2016)
[Konferensbidrag, refereegranskat]

In this paper, intrabundle failure initiation in NCF reinforced composite materials is predicted based on a finite element model built with shell elements. The full 3D stress state is estimated based on the shell results and used in a state of the art 3D failure criterion. The procedure considers predictions of the transverse shear and normal stresses from stress equilibrium. By using this approach on shell elements, more efficient modelling strategies suited to identify hot spots in larger structures can be pursued.

Nyckelord: Carbon fibre composites, Textile, Local-Global, Failure, Finite Element



Denna post skapades 2016-09-12.
CPL Pubid: 241636