Discrete element approach to simulate debonding process in 3D short glass fibre composite materials: Application to PA6/GF30

Discrete element method to simulate interface delamination and fracture of plasma-sprayed thermal barrier coatings

“…Besides, a Rayleigh damping term is added to internal forces to reduce undesirable dynamic effects. For simplicity purposes, it is defined proportionally to the stiffness matrix introduced in the discussed 3-by-4 matrix system [45] and depends on a constant of proportionality β [40] so that the real time step Δt β is in fact expressed as follows:…”

“…Thus, Ismail et al [37] and Le et al [38] investigated the decohesion phenomenon in unidirectional fibre reinforced composites under transverse mechanical loading respectively in 2D and 3D framework. Recently, Gao et al [39] introduced a cohesive zone based DEM/FEM coupling method to simulate debonding behavior of laminated glass, and Ammar et al [40] investigated a mixed-mode CZM to simulate the interfacial debonding in 3D short fibre reinforced composites under bending loading.…”

A micro‐macromechanical approach for analyzing creep in randomly oriented short fiber composites

“…Although many studies have focused on mechanical properties [ 2–11 ] fatigue [ 12–18 ] and damage [ 19–30 ] of ROS composites to some extents, theoretical analysis of their creep behaviors has gained less attention in open literature. Park and Balatinecz [ 31 ] studied empirically the short‐term creep of wood‐fiber reinforced PE composites.…”

“…The increasing demand in various markets for presenting reliable and competitive products necessitate proper understanding of mechanical behaviors of ROS composites from various viewpoints. [1] Although many studies have focused on mechanical properties [2][3][4][5][6][7][8][9][10][11] fatigue [12][13][14][15][16][17][18] and damage [19][20][21][22][23][24][25][26][27][28][29][30] of ROS composites to some extents, theoretical analysis of their creep behaviors has gained less attention in open literature. Park and Balatinecz [31] studied empirically the short-term creep of wood-fiber reinforced PE composites.…”

Viscoelastic-viscoplastic homogenization of short glass-fiber reinforced polyamide composites (PA66/GF) with progressive interphase and matrix damage: New developments and experimental validation

“…The nonlinear stress-strain response of graphite/polyamide composites is simulated based on the hypothesis of shear-dominated fiber/matrix interfacial degradation as the primary cause of the observed nonlinearity. Ammar et al (2021) developed a discrete element approach to simulate interfacial debonding process modelling using the cohesive zone model in short glass-fiberreinforced composites, in particular the PA6/GF30 composites. Huang et al (2021a) proposed a bridging micromechanics model for predicting the failure strength of aligned and randomly oriented short fiber composites.…”