Journal ArticleDOI
Materially and geometrically non-linear woven composite micro-mechanical model with failure for finite element simulations
Ala Tabiei,Ivelin Ivanov +1 more
TLDR
In this article, a micro-mechanical material model of woven fabric composite material is developed to simulate failure, which is based on repeated unit cell approach to simulate fiber reorientation.Abstract:
A computational micro-mechanical material model of woven fabric composite material is developed to simulate failure. The material model is based on repeated unit cell approach. The fiber reorientation is accounted for in the effective stiffness calculation. Material non-linearity due to the shear stresses in the impregnated yarns and the matrix material is included in the model. Micro-mechanical failure criteria determine the stiffness degradation for the constituent materials. The developed material model with failure is programmed as user-defined sub-routine in the LS-DYNA finite element code with explicit time integration. The code is used to simulate the failure behavior of woven composite structures. The results of finite element simulations are compared with available test results. The model shows good agreement with the experimental results and good computational efficiency required for finite element simulations of woven composite structures.read more
Citations
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Journal ArticleDOI
Meso-FE modelling of textile composites: Road map, data flow and algorithms
Stepan Vladimirovitch Lomov,Dmitry Ivanov,Ignace Verpoest,Masaru Zako,Tetsusel Kurashiki,Hiroaki Nakai,Satoru Hirosawa +6 more
TL;DR: In this paper, the meso-scale finite element (FE) modeling of textile composites is considered as a powerful tool for homogenisation of mechanical properties, study of stress-strain fields inside the unit cell, determination of damage initiation conditions and sites and simulation of damage development and associated deterioration of the homogenised mechanical properties of the composite.
Journal ArticleDOI
Ballistic Impact of Dry Woven Fabric Composites: A Review
Ala Tabiei,Gaurav Nilakantan +1 more
TL;DR: The ballistic impact performance of PBO systems is substantially superior to Kevlar 29 systems and marginally better than Kevlar KM2 systems 4 as mentioned in this paper, when gripped on all four edges, and almost 12 times that of aluminum fuselage skin.
Journal ArticleDOI
Modelling inter‐yarn friction in woven fabric armour
TL;DR: In this paper, the effects of inter-yarn friction on the ballistic performance of woven fabric armour are investigated in a computational model of the fabric that takes the form of a network.
Journal ArticleDOI
Effects of interphase material properties in unidirectional fibre reinforced composites
TL;DR: In this article, the effect of different mechanical properties of a 3D interphase within the hexagonal array RVE have been considered and effects of thermal residual stress arising during the curing process have been accounted for in this study.
Journal ArticleDOI
Computational simulation of fabric armour subjected to ballistic impacts
Vincent B. C. Tan,T.W. Ching +1 more
TL;DR: In this article, the authors present an FE model of woven fabric that reflects the orthotropic properties of the fabric, the viscoelastic nature of the yarns, the crimping of yarns and yarn breakage.
References
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Book
Concepts and Applications of Finite Element Analysis
TL;DR: In this article, the authors present a formal notation for one-dimensional elements in structural dynamics and vibrational properties of a structural system, including the following: 1. Isoparametric Elements.
Journal ArticleDOI
Stiffness and strength behaviour of woven fabric composites
Takashi Ishikawa,Tsu-Wei Chou +1 more
TL;DR: In this article, three analytical models for the investigation of the stiffness and strength of woven fabric composites are presented, i.e., the Fibre undulation model (FDM), Fibre Uniform Model (FUSM) and Multimodal Model (MMM) for modelling the knee stiffness and knee stress in plain weave composites, and a bridging model to simulate the load transfer among interlaced regions in satin composites.
Journal ArticleDOI
Nonlinear Elastic Behavior of Unidirectional Composite Laminae
Hong T. Hahn,Stephen W. Tsai +1 more
TL;DR: In this paper, complementary elastic energy density is used to derive a stress-strain relation, which is linear in uniaxial loadings in the longitudinal and trans verse directions, but nonlinear in shear.
Journal ArticleDOI
One-dimensional micromechanical analysis of woven fabric composites
Tsu-Wei Chou,Takashi Ishikawa +1 more
TL;DR: In this article, the upper and lower bounds of elastic stiffness and compliance constants of woven fabric composites are derived, based upon a mosaic-like model as well as the assumptions of constant stress and constant strain.
Journal ArticleDOI
Elastic Behavior of Woven Hybrid Composites
Takashi Ishikawa,Tsu-Wei Chou +1 more
TL;DR: In this article, basic geometrical and material parameters are identified to characterize the structure of hybrid fabrics and analysis of the elastic behavior is made based upon a mosaic model and the fabric composite.