scholarly journals Simple Progression Law in Predicting the Damage Onset and Propagation in Composite Notched Laminates

2018 ◽  
Vol 7 (4.26) ◽  
pp. 163
Author(s):  
Mohd Suhairil Meon ◽  
Narasimha Rao Mekala ◽  
Kai-Uwe S Schroeder
Keyword(s):  
Damage Model ◽  
Three Dimensional ◽  
Failure Criteria ◽  
Constitutive Law ◽  
Fiber Reinforced Polymer ◽  
Damage Initiation ◽  
Frp Composite ◽  
Reinforced Polymer ◽  
Ultimate Failure ◽  
Progressive Damage Model

The aim of this article is to simulate the damage initiation and progression in unidirectional (UD) laminates. A three-dimensional (3D) failure criteria of Puck incorporated with degradation scheme is developed. Two types of degradation law known as sudden degradation are used to predict the damage progression in UD laminates. The establishment of constitutive law in progressive damage model (PDM) is achieved through implementation of user subroutines in Abaqus. The failure analysis is applied to various composite stacking sequences and geometries, as well as different fiber reinforced polymer (FRP) composite materials. The comparative studies revealed that the predicted ultimate failure load agree well with those available in the literature. 

scholarly journals Simple Progression Law in Predicting the Damage Onset and Propagation in Composite Notched Laminates

2018 ◽  
Vol 7 (4.26) ◽  
pp. 163
Author(s):  
Mohd Suhairil Meon ◽  
Narasimha Rao Mekala ◽  
Kai-Uwe S Schroeder
Keyword(s):  
Damage Model ◽  
Three Dimensional ◽  
Failure Criteria ◽  
Constitutive Law ◽  
Fiber Reinforced Polymer ◽  
Damage Initiation ◽  
Frp Composite ◽  
Reinforced Polymer ◽  
Ultimate Failure ◽  
Progressive Damage Model

The aim of this article is to simulate the damage initiation and progression in unidirectional (UD) laminates. A three-dimensional (3D) failure criteria of Puck incorporated with degradation scheme is developed. Two types of degradation law known as sudden degradation are used to predict the damage progression in UD laminates. The establishment of constitutive law in progressive damage model (PDM) is achieved through implementation of user subroutines in Abaqus. The failure analysis is applied to various composite stacking sequences and geometries, as well as different fiber reinforced polymer (FRP) composite materials. The comparative studies revealed that the predicted ultimate failure load agree well with those available in the literature. 

A new progressive damage model for predicting the tensile behavior of the three-dimensional woven carbon/carbon composites using micromechanics method

2021 ◽  
pp. 105678952110354
Author(s):  
Kunlong Wei ◽  
Hongbin Shi ◽  
Jiang Li ◽  
Min Tang
Keyword(s):  
Evolution Equations ◽  
Damage Model ◽  
Three Dimensional ◽  
Failure Behavior ◽  
Progressive Damage ◽  
Cohesive Elements ◽  
Damage Initiation ◽  
Void Defects ◽  
Fiber Matrix ◽  
Progressive Damage Model

A new progressive damage model for the three-dimensional (3 D) woven carbon/carbon (C/C) composites is developed at fiber-matrix level using the micromechanics method. A woven architecture based Representative Volume Element (RVE) model composed of yarns, matrix and yarn/matrix interface is constructed, in which the manufacturing void defects are accounted for. The fiber-matrix concentric cylinder model is employed as a repeating unit cell to represent the yarn, and the matrix micro strain field is computed analytically by the micromechanics method. The maximum stain criteria is utilized for fiber longitudinal breakage, and the Von-Mises criterion is applied for the damage initiation of matrix in both intra-yarns and inter-yarns. The damaged fiber and matrix are modeled by the stiffness degradation method combined with exponential damage evolution equations. The zero thickness cohesive elements governed by bilinear traction-separation constitutive are adopted for yarn/matrix interfacial debonding behavior. The micro progressive damage and failure behavior of the 3 D woven C/C composites subjected to tension is implemented through a developed user-defined material subroutine in commercial software ABAQUS. The predicted stress-strain response is in a good agreement with experimental results. In addition, the effect of manufacturing void defects is also examined by the developed model.

A progressive damage model for three-dimensional woven composites under ballistic impact loading

2019 ◽  
Vol 1 (1) ◽  
pp. 015028
Author(s):  
Yongqi Yang ◽  
Li Zhang ◽  
Licheng Guo ◽  
Suyang Zhong ◽  
Jiuzhou Zhao ◽  
...  
Keyword(s):  
Impact Loading ◽  
Damage Model ◽  
Three Dimensional ◽  
Ballistic Impact ◽  
Woven Composites ◽  
Progressive Damage ◽  
Progressive Damage Model

scholarly journals 3D-Printed Pseudo Ductile Fiber-Reinforced Polymer (FRP) Composite Using Discrete Fiber Orientations

Fibers ◽  
2020 ◽  
Vol 8 (9) ◽  
pp. 53
Author(s):  
Shreya Vemuganti ◽  
Eslam Soliman ◽  
Mahmoud Reda Taha
Keyword(s):  
3D Printing ◽  
Fiber Orientation ◽  
Fiber Reinforced Polymer ◽  
Civil Infrastructure ◽  
Stacking Sequence ◽  
Fiber Reinforced ◽  
Frp Composite ◽  
Reinforced Polymer ◽  
Gfrp Composite ◽  
3D Printed

The use of fiber-reinforced polymer (FRP) composite materials are continuously growing in civil infrastructure due to their high strength, low weight, and manufacturing flexibility. However, FRP is characterized by sudden failure and lacks ductility. When used in construction, gradual failure of FRP components is desired to avoid catastrophic structural collapse. Due to its mechanical orthotropy, the behavior of FRP relies significantly on fiber orientation and stacking sequence. In this paper, a novel multi-angled glass fiber reinforced polymer (GFRP) composite laminate showing pseudo ductile behavior is produced using 3D-printing. This is accomplished by varying fiber orientation angles, stacking sequence, and thickness of lamina. Single-angled GFRP composite specimens were 3D-printed with different fiber orientation angles of 0°, 12°, 24°, 30°, 45°, and 90° using continuous and fused filament techniques. The tension test results of the single-angled specimens were then used to aid the design of multi-angled laminate for potential progressive failure behavior. A 3D finite element (FE) model was developed to predict the response of the experimental results and to provide insight into the failure mechanism of the multi-angled laminate. The experimental observations and the FE simulations show the possibility of producing pseudo ductile FRP-by-design composite using 3D-printing technology, which leads the way to fabricate next-generation composites for civil infrastructure.

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