Fatigue Damage of Al/SiC Composites - Macroscopic and Microscopic Analysis

Rutecka, A.; Kowalewski, Zbigniew L.; Makowska, Katarzyna; Pietrzak, K.; Dietrich, L.

doi:10.1515/amm-2015-0016

Cited by 5 publications

(5 citation statements)

References 7 publications

(16 reference statements)

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“…An experimental investigation on mechanical properties of the hybrid polymer nanocomposite has been recently reported in [5] . The analysis of fatigue damage has been presented in the report [6] . The difficulties related to recycling as well as polymer and composite utilization have been presented in the report [7] .…”

Section: Introductionmentioning

confidence: 99%

Application of metric entropy to determine properties of structural materials

Garbacz

Kyzioł

2019

Polímeros

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ObstractComposite materials have nowadays become a group of construction materials whose application in mechanical structure designing has been constantly increasing. There is therefore a real demand for an objective opinion on the mechanical properties of composites. According to the authors, determining those properties based on the recommended methods included in current standards requires objectivization. The difficulty is that those methods are usually based on the geometrical shape of stress curves in the strain function. The study proposes an new method of testing the mechanical properties of composites through analyzing the internal dynamics of measurement data based on uniaxial stretching tests. A tool in such an analysis is determining the Kolmogorov-Sinai metric entropy values of measurement data. Nine samples of composite materials having various compositions have been tested. In selecting these materials, the focus has been on the possibility of introducing composite recyclates as their structural components.

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Section: Introductionmentioning

confidence: 99%

Application of metric entropy to determine properties of structural materials

Garbacz

Kyzioł

2019

Polímeros

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“…formation of reinforcement particle clusters during MMC production observed e.g. for Al/SiC composites and reported in [8] and [9]. Such particles in clusters can be not sufficiently bonded to the matrix and weaken the material.…”

Section: Introductionmentioning

confidence: 84%

“…Simulated stress-strain curves for composite with 25% volume fraction of ceramic phase are shown as dashed (8)…”

Section: Microstructure Examinationmentioning

confidence: 99%

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Damage evolution in AA2124/SiC metal matrix composites under tension with consecutive unloadings

Rutecka

Kursa

Pietrzak

et al. 2020

Archiv.Civ.Mech.Eng

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Nonlinear properties of metal matrix composites (MMCs) are studied. The research combines results of loading–unloading tensile tests, microstructural observations and numerical predictions by means of micromechanical mean-field models. AA2124/SiC metal matrix composites with SiC particles, produced by the Aerospace Metal Composites Ltd. (AMC) are investigated. The aluminum matrix is reinforced with 17% and 25% of SiC particles. The best conditions to evaluate the current elastic stiffness modulus have been assessed. Tensile tests were carried out with consecutive unloading loops to obtain actual tensile modulus and study degradation of elastic properties of the composites. The microstructure examination by scanning electron microscopy (SEM) showed a variety of phenomena occurring during composite deformation and possible sources of elastic stiffness reduction and damage evolution have been indicated. Two micromechanical approaches, the incremental Mori–Tanaka (MT) and self-consistent (SC) schemes, are applied to estimate effective properties of the composites. The standard formulations are extended to take into account elasto-plasticity and damage development in the metal phase. The method of direct linearization performed for the tangent or secant stiffness moduli is formulated. Predictions of both approaches are compared with experimental results of tensile tests in the elastic–plastic regime. The question is addressed how to perform the micromechanical modelling if the actual stress–strain curve of metal matrix is unknown.

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“…The author Wieczorek, proved by an experiment that the mixing of copper and carbon nano powder increased the mechanical properties such as hardness and compressive strength [5].…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation of Process Parameters in Drilling LM25 Composites Coated with Multi Wall Carbon Nano Tubes Using Sonication Process

Sangeetha

Prakash

2017

Archives of Metallurgy and Materials

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Aluminium based metal matrix composites are widely used in automobile components such as cardan shaft of Chevrolet corvette, disc brake and engine push rod. In this experiment a Hybrid Metal Matrix Composites (HMMC) are fabricated and drilled. Drilling is the process of making slots in disc brake and thread in the engine parts. The surface quality of the drilled specimen depends on the speed, feed, drill type and the thrust force. Thrust force plays the major role in drilling the specimen. In this experiment HMMCs are fabricated using two processes-called, sonication and casting. Sonication is the process of coating the carbon nanotubes over the silicon carbide particles (SiCp). Semisolid stir casting is used to reinforce the coated SiCp in the LM 25 alloy. A drilling process is performed on HMMC to analyse the extent to which the input parameters influence the thrust force and Ovality. The tools used for drilling are solid carbide tools of three different diameters. Taguchi's experimental design is adopted for the drilling operation. A mathematical model is used to determine the influence of input parameters on the outputs thrust force and ovality. This paper proves the combination of N 3 , f 1 and d 1 of the carbide tool results in the lowest value of thrust force and ovality while drilling HMMCs. In this work the HMMC is prepared by coating the abrasive nature, silicon carbide particle and there is a good interfacial bonding between the reinforced particle and matrix and the drilling process becomes smoother. The new being of this article is the treated ceramics, SiCp with carbon nanotubes. This HMMC shows the improved mechanical properties compared to other metal matrix composites surveyed in the literatures.

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Fatigue Damage of Al/SiC Composites - Macroscopic and Microscopic Analysis

Cited by 5 publications

References 7 publications

Application of metric entropy to determine properties of structural materials

Application of metric entropy to determine properties of structural materials

Damage evolution in AA2124/SiC metal matrix composites under tension with consecutive unloadings

Experimental Investigation of Process Parameters in Drilling LM25 Composites Coated with Multi Wall Carbon Nano Tubes Using Sonication Process

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