A progressive damage model of textile composites on meso-scale using finite element method: static damage analysis

Abstract

SUMMARYA meso-scale finite element model for static damage in textile composites was established. The impregnated yarn is taken as homogeneous and transverse isotropic material, whose mechanical properties are calculated using Chamis' equations. The damage modes are determined by using the Tsai-Wu criterion and additional criteria. The Murakami damage tensor is used to calculate the post-damage stiffness matrix. The model has been validated using plain weave and twill weave carbon-epoxy composites. The initiation of inter-fibre matrix crack and fibre rupture was analyzed using this meso-FE model.

A progressive damage model of textile composites on meso-scale using finite element method: Fatigue damage analysis

“…The composite materials studied in [21] are produced with the same fibre/resin system (details not given,), aiming at disclosing the influence of the reinforcement structures, for example the weave crimp and yarn thickness, to fatigue behavior. The failure modes are not experimentally verified in this work but they are already able to be predicted in this approach [9]. Under tension-tension loading, the fibre rupture dominates the apparent fatigue properties and the other failure modes are less important.…”

“…11. Roadmap for fatigue damage evaluation: (a) preparation for FE-model; (b) one-step calculation to determine the elastic phase; (c) quasi-static damage simulation algorithm [9] corresponding to Module A in Fig. 1; and (d) fatigue simulation corresponding to Module B in Fig.…”

“…As discussed in static modelling [9], the meso-scale fatigue modelling of textile composites has to be provided with an adequate geometrical description of a unit cell, which can be created using a textile geometry generator [10,11] and converted afterwards to the FE model assisted by a FE mesher [8,12].…”

Modelling high-cycle fatigue of textile composites on the unit cell level

“…These properties give a correct prediction of quasi-static stiffness and strength for the two types of materials (Table 14.7), which allows using them for fatigue modelling. The reader is addressed to Xu et al (2014) for details of the quasi-static modelling.…”

The effect of off-axis angles on the mesoscale deformation response and failure behavior of an orthotropic textile carbon-epoxy composite

“…Owing to the variability of textile composites, the deformation and failure response are influenced by many factors, such as the reinforcement architecture, the mechanical properties of their constituents and the interaction between the reinforcing fibers and the matrix [4,5]. So far, numerous numerical [6][7][8][9][10] and experimental [5,[10][11][12] studies have been performed in order to examine the mechanical response and failure mechanisms of textile composites under the on-axis mechanical loading. However, such textile laminates are often subjected to local off-axis tensile loading due to its wide application in plane and shell structures.…”