Size effect on the compression breakage strengths of glass particles

Huang, J.Y.; Xu, Sheng; Yi, Hang; Shi-sheng, HU

doi:10.1016/j.powtec.2014.08.037

Cited by 77 publications

(20 citation statements)

References 34 publications

(61 reference statements)

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“…Overall, a clear crack propagation is not always evident for these smaller sized specimens. Similar observation is reported by Huang et al (2014) when testing glass spheres of 4.39 mm diameter where slight shape destruction was attributed to Hertzian ring cracks splitting off a shallow slice before the release of the disintegrating cracks. Figure 43c shows the ellipsoid-shaped specimen with 12.4 mm diameter.…”

Section: Fracture Mechanismsupporting

confidence: 86%

Alternative methods for geomechanical characterisation of sub-bituminous coal, Surat Basin, Australia

Barbosa¹

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Section: Fracture Mechanismsupporting

confidence: 86%

Alternative methods for geomechanical characterisation of sub-bituminous coal, Surat Basin, Australia

Barbosa¹

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“…Fracture strengths of brittle materials generally exhibit considerable divergence. A Weibull model has been widely used to deal with the scatter in the apparent fracture strength, σ f , directly obtained from the compression curves [15,19,43,44]. It assumes that σ f and the probability of failure (P f ) follow a Weibull distribution,…”

Section: Compressional Fracture Strengthsmentioning

confidence: 99%

“…Extensive investigations have been devoted to compression fracture of such brittle materials as ceramics [12][13][14][15], quartz [16], and ice [17,18]. Under quasi-static loading, the fracture modes can be resolved with the high-speed optical imaging method [19,20] or postmortem SEM analysis [14,21]. Crack features such as mirror, mist, hackle and branching, were widely observed in the fracture plane of brittle materials when the stress intensity or crack propagation velocity exceeds a critical value [10,21].…”

Section: Introductionmentioning

confidence: 99%

Dynamic deformation and fracture of single crystal silicon: Fracture modes, damage laws, and anisotropy

et al. 2016

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Impact fracture of single-crystal Si is critical to long-term reliability of electronic devices and solar cells for its wide use as components or substrates in semiconductor industry. Single-crystal Si is loaded along two different crystallographic directions with a split Hopkinson pressure bar integrated with an in situ x-ray imaging and diffraction system. Bulk stress histories are measured, simultaneously with x-ray phase contrast imaging (XPCI) and Laue diffraction. Damage evolution is quantified with grayscale maps from XPCI. Single-crystal Si exhibits pronounced anisotropy in fracture modes, and thus fracture strengths and damage evolution. For loading along [110] and viewing along [001] directions, (110) [110] cleavage is activated and induce horizontal primary cracks followed by perpendicular wing cracks. However, when loading along [011] and viewing along [111] directions, random nucleation and growth of shear and tensile-splitting crack networks lead to catastrophic failure of materials with no cleavage. The primarywing crack mode leads to a lower characteristic fracture strength due to predamage, but a more concentrated strength distribution, i.e., a higher Weibull modulus, compared to the second loading case. Moreover, the sequential primary cracking, wing cracking and wing-crack coalescence processes result in a gradual increase of damage with time, deviating from theoretical predictions. Particle size and aspect ratios of fragments are discussed with postmortem fragment analysis, which verifies fracture modes observed in XPCI.

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“…In early works aimed at studying the deformation and fracture processes of single particles, a particle composed of a brittle material was loaded in quasi-static compression between two stiff platens (diametral compression) and fracture forces were recorded [2]- [7]. For glass particles, researchers have fitted the Weibull distribution to the fracture forces to study it statistically [2], [8]. Two different experimental methodologies have been used to study the behavior of particles under dynamic compression: single particle impact and drop tower testing.…”

Section: Introductionmentioning

confidence: 99%

Fracture mechanisms of glass particles under dynamic compression

Parab

Guo

Hudspeth

et al. 2017

International Journal of Impact Engineering

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In this study, dynamic fracture mechanisms of single and contacting spherical glass particles were observed using high speed synchrotron X-ray phase contrast imaging. A modified Kolsky bar setup was used to apply controlled dynamic compressive loading on the soda-lime glass particles. Four different configurations of particle arrangements with one, two, three, and five particles were studied. In single particle experiments, cracking initiated near the contact area between the particle and the platen, subsequently fragmenting the particle in many small sub-particles. In multi-particle experiments, a crack was observed to initiate from the point just outside the contact area between two particles.The initiated crack propagated at an angle to the horizontal loading direction, resulting in separation of a fragment. However, this fragment separation did not affect the ability of the particle to withstand further contact loading. On further compression, large number of cracks initiated in the particle with the highest number of particle-particle contacts near © 2017. This manuscript version is made available under the Elsevier user license http://www.elsevier.com/open-access/userlicense/1.0/ 2 one of the particle-particle contacts. The initiated cracks roughly followed the lines joining the contact points. Subsequently, the initiated cracks along with the newly developed subcracks bifurcated rapidly as they propagated through the particle and fractured the particle explosively into many small fragments, leaving the other particles nearly intact.

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Size effect on the compression breakage strengths of glass particles

Cited by 77 publications

References 34 publications

Alternative methods for geomechanical characterisation of sub-bituminous coal, Surat Basin, Australia

Alternative methods for geomechanical characterisation of sub-bituminous coal, Surat Basin, Australia

Dynamic deformation and fracture of single crystal silicon: Fracture modes, damage laws, and anisotropy

Fracture mechanisms of glass particles under dynamic compression

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