Analysis of Stress Transfer from the Matrix to the Fiber through an Imperfect Interface: Application to Raman Data and the Single-Fiber Fragmentation Test

2009 ◽  
pp. 47-47-20 ◽  
Author(s):  
JA Nairn ◽  
YC Liu ◽  
C Galiotis
Keyword(s):  
Stress Transfer ◽  
Imperfect Interface ◽  
Single Fiber ◽  
Fragmentation Test ◽  
The Matrix ◽  
Fiber Fragmentation

Effect of linear viscoelasticity on stress transfer in a numerical model of a single fiber fragmentation test

2020 ◽  
Vol 22 ◽  
pp. 100757
Author(s):  
Aarón Rivas-Menchi ◽  
Narciso Acuña-González ◽  
Alex Valadez-González ◽  
Pedro J. Herrera-Franco
Keyword(s):  
Numerical Model ◽  
Linear Viscoelasticity ◽  
Stress Transfer ◽  
Single Fiber ◽  
Fragmentation Test ◽  
Fiber Fragmentation

Stress Transfer from the Matrix to the Fibre in a Fragmentation Test: Raman Experiments and Analytical Modeling

1999 ◽  
Vol 33 (4) ◽  
pp. 377-399 ◽  
Author(s):  
Alkis Paipetis ◽  
Costas Galiotis ◽  
Yung Ching Liu ◽  
John A. Nairn
Keyword(s):  
Analytical Modeling ◽  
Stress Transfer ◽  
Fragmentation Test ◽  
The Matrix

scholarly journals Multiscale Modeling of Fiber Fragmentation Process in Aligned ZnO Nanowires Enhanced Single Fiber Composites

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Parisa Marashizadeh ◽  
Mohammad Abshirini ◽  
Jingyu Wang ◽  
Mrinal C. Saha ◽  
Yingtao Liu
Keyword(s):  
Shear Strength ◽  
Multiscale Modeling ◽  
Interfacial Shear Strength ◽  
Fiber Composites ◽  
Interfacial Shear ◽  
Zno Nanowires ◽  
Single Fiber ◽  
Computational Domain ◽  
The Matrix ◽  
Fiber Fragmentation

AbstractA three-dimensional multiscale modeling framework is developed to analyze the failure procedure of radially aligned zinc oxide (ZnO) enhanced single fiber composites (SFC) under tensile loading to understand the interfacial improvement between the fiber and the matrix. The model introduces four levels in the computational domain. The nanoscale analysis calculates the size-dependent material properties of ZnO nanowires. The interaction between ZnO nanowires and the matrix is simulated using a properly designed representative volume element at the microscale. At the mesoscale, the interface between the carbon fiber and the surrounding area is modeled using the cohesive zone approach. A combination of ABAQUS Finite element software and the failure criteria modeled in UMAT user subroutine is implemented to simulate the single fiber fragmentation test (SFFT) at the macroscale. The numerical results indicate that the interfacial shear strength of SFC can be improved up to 99% after growing ZnO nanowires on the fiber. The effect of ZnO nanowires geometries on the interfacial shear strength of the enhanced SFC is also investigated. Experimental ZnO nanowires enhanced SFFTs are performed on the fabricated samples to validate the results of the developed multiscale model. A good agreement between the numerical and the experimental results was observed.

Material Characterization for Constituents of Fiber Reinforced Polymers by Experiments and Prediction of Effective Composite Properties

2017 ◽  
Vol 742 ◽  
pp. 714-722
Author(s):  
Joseph Goldmann ◽  
Markus Kaestner ◽  
Volker Ulbricht
Keyword(s):  
Single Fiber ◽  
Fiber Reinforced Polymers ◽  
Fiber Reinforced ◽  
Present Contribution ◽  
Reinforced Polymers ◽  
Glass Fiber Reinforced ◽  
The Matrix ◽  
Fiber Fragmentation ◽  
The One ◽  
Composite Properties

The present contribution aims to investigate the ability of drawing predictive conclusions from homogenization in case of damage. Therefor, two topics will be addressed. On the one hand, material properties for the constituents on the microscale have to be derived, to render a predictive homogenization possible. The investigation at hand is concerned with glass fiber reinforced epoxy resin. In this example the properties of the fiber and the matrix have to be studied individually by experiments. Furthermore, the interface between both materials needs to be examined. To this end experiments on several models of single fiber composites have been developed in the literature. For the present material combination single fiber fragmentation tests and pullout tests have been conducted and evaluated. On the other hand, boundary conditions are necessary, that allow for the strain localization in a volume element without leading to spurious localization zones.

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