Particulate Composite Damage: The Influence of Particle Shape on Crack Path

Zdeněk Majer; Luboš Náhlík; Lucie Malíková

doi:10.4028/www.scientific.net/KEM.662.77

Paper Titles

Local Mechanical Characterization of Metal Foams by Nanoindentation
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Finite Element Analysis of Elastic-Plastic Concentrated Contact
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Plastic Zone around a Fatigue Crack Determined by the FEM and a Nanoindentation Technique
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Mechanical Properties Determination of Unknown and 10Ch2MFA Steel Based on Non-Destructive Instrumented Hardness Test
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Particulate Composite Damage: The Influence of Particle Shape on Crack Path
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Modelling and Analysis of Reinforced Concrete Beams
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Characterization of Sputter-Deposited NiTi Thin Film by Nanoindentation
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Study of the Mechanical Properties of Single-Layered and Bilayered CoCrFeSi Ribbons Using Quasistatic and Dynamic Nanoindentation Tests
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Effect of Nitrogen Content on the Mechanical Properties of Amorphous SiCN Films
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HomeKey Engineering MaterialsKey Engineering Materials Vol. 662Particulate Composite Damage: The Influence of...

Particulate Composite Damage: The Influence of Particle Shape on Crack Path

Abstract:

Using stiff particles mixed into polymer matrix may significantly improve global mechanical response of the composite. Unfortunately, this process leads to other side effects, for example, presence of stress concentration at the particle-matrix interface or negative influence on the fracture toughness. The paper presents an approach to estimate the influence of particles on the micro-crack propagation. Material properties of matrix and particles were estimated experimentally. A two-dimensional computational model was proposed and all calculations were done in software ANSYS. On the base of linear elastic fracture mechanics, the influence of the particle shape on the micro-crack propagation paths was analyzed via numerical studies. The results of numerical simulations show that the shape of the particles can significantly influence the micro-crack path as well as the stress intensity factor on the crack tip, which corresponds to fracture toughness of polymer composite filled with rigid particles. The conclusions of this paper could contribute to better understanding of the behavior of the polymer composites.

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Periodical:

Key Engineering Materials (Volume 662)

Pages:

77-80

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.662.77

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Cite this paper

Online since:

September 2015

Authors:

Zdeněk Majer*, Luboš Náhlík, Lucie Malíková

Keywords:

Crack Propagation, Finite Element Method (FEM), Interphase, Particulate Composites

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