scholarly journals Progressive damage and failure response of hybrid 3D textile composites subjected to flexural loading, part I: Experimental studies

2015 ◽  
Vol 75-76 ◽  
pp. 309-320 ◽  
Author(s):  
Dianyun Zhang ◽  
Anthony M. Waas ◽  
Chian-Fong Yen
Keyword(s):  
Experimental Studies ◽  
Textile Composites ◽  
Progressive Damage ◽  
Damage And Failure ◽  
Flexural Loading

scholarly journals Damage and failure modelling of hybrid three-dimensional textile composites: a mesh objective multi-scale approach

2016 ◽  
Vol 374 (2071) ◽  
pp. 20160036 ◽  
Author(s):  
Deepak K. Patel ◽  
Anthony M. Waas
Keyword(s):  
Structural Dynamics ◽  
Three Dimensional ◽  
Textile Composites ◽  
Unit Cell ◽  
Progressive Damage ◽  
Concentric Cylinder ◽  
Geometric Imperfections ◽  
Damage And Failure ◽  
Multi Scale ◽  
The Matrix

This paper is concerned with predicting the progressive damage and failure of multi-layered hybrid textile composites subjected to uniaxial tensile loading, using a novel two-scale computational mechanics framework. These composites include three-dimensional woven textile composites (3DWTCs) with glass, carbon and Kevlar fibre tows. Progressive damage and failure of 3DWTCs at different length scales are captured in the present model by using a macroscale finite-element (FE) analysis at the representative unit cell (RUC) level, while a closed-form micromechanics analysis is implemented simultaneously at the subscale level using material properties of the constituents (fibre and matrix) as input. The N -layers concentric cylinder (NCYL) model (Zhang and Waas 2014 Acta Mech. 225 , 1391–1417; Patel et al. submitted Acta Mech. ) to compute local stress, srain and displacement fields in the fibre and matrix is used at the subscale. The 2-CYL fibre–matrix concentric cylinder model is extended to fibre and ( N −1) matrix layers, keeping the volume fraction constant, and hence is called the NCYL model where the matrix damage can be captured locally within each discrete layer of the matrix volume. The influence of matrix microdamage at the subscale causes progressive degradation of fibre tow stiffness and matrix stiffness at the macroscale. The global RUC stiffness matrix remains positive definite, until the strain softening response resulting from different failure modes (such as fibre tow breakage, tow splitting in the transverse direction due to matrix cracking inside tow and surrounding matrix tensile failure outside of fibre tows) are initiated. At this stage, the macroscopic post-peak softening response is modelled using the mesh objective smeared crack approach (Rots et al. 1985 HERON 30 , 1–48; Heinrich and Waas 2012 53rd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference, Honolulu, HI, 23–26 April 2012 . AIAA 2012-1537). Manufacturing-induced geometric imperfections are included in the simulation, where the FE mesh of the unit cell is generated directly from micro-computed tomography (MCT) real data using a code S impleware . Results from multi-scale analysis for both an idealized perfect geometry and one that includes geometric imperfections are compared with experimental results (Pankow et al. 2012 53rd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference, Honolulu, HI, 23–26 April 2012 . AIAA 2012-1572). This article is part of the themed issue ‘Multiscale modelling of the structural integrity of composite materials’.

Experimental and numerical analysis of progressive damage and failure behavior of carbon Woven-PPS

2020 ◽  
Vol 243 ◽  
pp. 112234
Author(s):  
Leila Jebri ◽  
Fethi Abbassi ◽  
Murat Demiral ◽  
Mohamed Soula ◽  
Furqan Ahmad
Keyword(s):  
Numerical Analysis ◽  
Failure Behavior ◽  
Progressive Damage ◽  
Damage And Failure

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

2013 ◽  
Vol 48 (25) ◽  
pp. 3091-3109 ◽  
Author(s):  
Jian Xu ◽  
Stepan Vladimirovitch Lomov ◽  
Ignaas Verpoest ◽  
Subbareddy Daggumati ◽  
Wim Van Paepegem ◽  
...  
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Damage Model ◽  
Textile Composites ◽  
Progressive Damage ◽  
Damage Analysis ◽  
Progressive Damage Model ◽  
Meso Scale ◽  
Element Method
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