Implementation of a Non-Orthogonal Constitutive Model for the Finite Element Simulation of Textile Composite Draping
In the pursuit of producing high quality, low-cost composite aircraft structures, out-of-autoclave manufacturing processes for textile reinforcements are being simulated with increasing accuracy. This paper focuses on the continuum-based, finite element modelling of textile composites as they deform during the draping process. A non-orthogonal constitutive model tracks yarn orientations within a material subroutine developed for Abaqus/Explicit, resulting in the realistic determination of fabric shearing and material draw-in. Supplementary material characterisation was experimentally performed in order to define the tensile and non-linear shear behaviour accurately. The validity of the finite element model has been studied through comparison with similar research in the field and the experimental lay-up of carbon fibre textile reinforcement over a tool with double curvature geometry, showing good agreement.
Grant P. Steven, Qing Li and Zhongpu (Leo) Zhang
R. S. Pierce et al., "Implementation of a Non-Orthogonal Constitutive Model for the Finite Element Simulation of Textile Composite Draping", Applied Mechanics and Materials, Vol. 553, pp. 76-81, 2014