A comparative study of ductile and brittle materials due to single angular particle impact

Hao, Guannan; Dong, Xiangwei; Du, Mingchao; Li, Zengliang; Dou, Zechao

doi:10.1016/j.wear.2019.03.016

Cited by 20 publications

(4 citation statements)

References 44 publications

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“…Erosion damage at 90°is regularly maximum [32][33][34], because the erosive particles impact perpendicularly to surface of the material. In figure 11(c) it was observed that the mass loss from erosion wear at 90°is greater in all materials, this confirms the brittle erosion behaviour and results in a rougher surface after the tests [35]. Table 2 shows the average wear mass loss of the samples subjected to dry erosion test at temperature of 50°C.…”

Section: Optical Microscopy and Sem Of Scarssupporting

confidence: 67%

Experimental study of temperature erosion tests on bidirectional coated and uncoated composites materials

Mendoza

Cárdenas

Pérez

et al. 2020

Mater. Res. Express

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In this research work, temperature erosion wear tests, on composites materials (carbon fiber and glass fiber), were carried out. The tests were made on uncoated and coated materials using a polyester resin (Gelcoat), which is used to protect the leading edge of wind turbine blades against the weather and UV rays and is of interest, in this study, to know the behaviour of this coating subjected to hard particles erosion. The tests were performed at 50°C, in order to simulate de extreme temperature in the coast of Oaxaca, Mexico, where some wind turbines are installed using blades made of fiberglass coated with gelcoat. Erosion tests were performed in a platform that was developed from the ASTM G76 standard. The rectangular samples had 25×18 mm and thickness of 4 mm. Sea sand from coast of Oaxaca was utilized as erosive particle. Three different impact angles were used 75°, 85°and 90°. The particle velocity was adjusted at 12 m s −1 . To determine the mass loss, the samples were weighed before the test and reweighed every 2 min to measure the amount of mass loss until complete the 6 min of the test. In order to identify the wear mechanisms, Scanning Electron Microscopy was used. The average roughness (Ra) and profiles of the samples tested were determined with a 3D optical profilometer. The results showed that Carbon fiber composite material had 3 times more resistance to erosive wear than fiberglass.

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Section: Optical Microscopy and Sem Of Scarssupporting

confidence: 67%

Experimental study of temperature erosion tests on bidirectional coated and uncoated composites materials

Mendoza

Cárdenas

Pérez

et al. 2020

Mater. Res. Express

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show abstract

“…The material removal impacted by spherical particles was greater than that of cubic particles. Hao et al [31] analyzed the mechanism of crack initiation and propagation during the impact process of angular particles on float glass by establishing a coupled FEM/SPH model, and found that incident orientation plays a key role in the erosion process. Dong et al [32,33] established the SPH constitutive relationship formula describing the plastic behavior and ductile fracture process, and used the improved SPH model to simulate the erosion process of particles with sharp corners.…”

Section: Introductionmentioning

confidence: 99%

Theoretical Modeling and Experimental Analysis of Single-Particle Erosion Mechanism of Optical Glass

Cao

Yan

et al. 2021

Micromachines

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The study of the single-particle erosion mechanism is essential to understand the material removal mechanism in the non-contact polishing process and ultimately ensure the high-efficiency, non-damage, and ultra-smooth processing of optical glass. In this study, the theoretical model of smoothed particle hydrodynamics (SPH) is established to reveal the dynamic removal process of a single particle impacting the optical glass. The single-particle erosion mechanisms, which include ductile–brittle transition, crack initiation, and propagation, are discussed in detail through theoretical simulation. A series of particle impact experiments are designed to validate the correctness of the SPH model. The experimental data show good agreement with the simulation results in terms of the depth and width of the eroded craters. Thereafter, the SPH simulation is conducted by studying the effect of various impact parameters, such as impact speed, impact angle, and abrasive diameter, on the material removal process. With the gradual increase of impact velocity and particle size, the material removal mode changes from plastic removal to brittle removal. Although the large impact velocity and particle size increase the material removal rate, they lead to the occurrence of brittle removal and reduce the surface and sub-surface quality. When the impact angle is between 45° and 75°, the material removal rate is the largest, and the increase of the material removal rate does not cause damage to the subsurface layer of the material.

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“…The Johnson-Cook (J-C) constitutive model [19] with Gruneisen equation of state (EOS) [20] is employed to describe the response of the target materials to large deformation and high strain rate. In the J-C model, the functional relationship among the von Mises flow stress for ductile materials, yield stress constant A, strain hardening constant B, effective plastic strain ̅ , strain rate ̇ * , and homologous temperature * is given by…”

Section: Materials Model and Equation Of Statementioning

confidence: 99%

Simulating a high-speed abrasive particle impacting on a tensile block using SPH-FEM

Liu

Zhao

Yoshigoe

et al. 2021

Int J Adv Manuf Technol

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In recent years, more and more researches have been carried out on the erosion mechanism of abrasive particles on target materials in the abrasive waterjet cutting process. However, the effect of material property factors on the target erosion damage is rarely studied systematically. In this work, a 3D smoothed particle hydrodynamics-finite elements model is established for the simulation. The controlled variable method is used to study how each material property factor affects the erosion process of single abrasive particle and to find out the key material property factors of Al6061-T6 and Ti-6Al-4V. The influence of the interaction of the key material property factors on the target erosion damage is further evaluated using the orthogonal test method.

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A comparative study of ductile and brittle materials due to single angular particle impact

Cited by 20 publications

References 44 publications

Experimental study of temperature erosion tests on bidirectional coated and uncoated composites materials

Experimental study of temperature erosion tests on bidirectional coated and uncoated composites materials

Theoretical Modeling and Experimental Analysis of Single-Particle Erosion Mechanism of Optical Glass

Simulating a high-speed abrasive particle impacting on a tensile block using SPH-FEM

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