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   Articles with "brittle materials" as a keyword



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Impact of process parameters on subsurface crack growth in brittle materials grinding

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recommendations! Published in 2017 at "Archive of Applied Mechanics"

DOI: 10.1007/s00419-016-1187-8

Abstract: The main failure mechanism of brittle materials occurs through the initiation and propagation of cracks. Researches involved with various loading modes and material defects have been widely investigated to control the stability of subsurface crack.… read more here.

Keywords: brittle materials; geometry; process parameters; mechanics ... See more keywords
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An SBFEM-Based Model for Hydraulic Fracturing in Quasi-Brittle Materials

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recommendations! Published in 2018 at "Acta Mechanica Solida Sinica"

DOI: 10.1007/s10338-018-0029-3

Abstract: A numerical model based on the scaled boundary finite element method is developed to simulate the hydraulic fracturing in concrete-like quasi-brittle materials using cohesive interface elements. The shadow domain method developed previously (Yang and Deeks… read more here.

Keywords: sbfem based; quasi brittle; brittle materials; hydraulic fracturing ... See more keywords
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Elastic stress field model and micro-crack evolution for isotropic brittle materials during single grit scratching

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recommendations! Published in 2017 at "Ceramics International"

DOI: 10.1016/j.ceramint.2017.05.054

Abstract: Abstract An analytical model for the elastic stress field in isotropic hard and brittle materials during scratching is presented. The model considers the entire elastic stress field and the effect of material densification that was… read more here.

Keywords: stress field; model; brittle materials; elastic stress ... See more keywords
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Study of rock dynamic fracture toughness and crack propagation parameters of four brittle materials under blasting

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recommendations! Published in 2020 at "Engineering Fracture Mechanics"

DOI: 10.1016/j.engfracmech.2019.04.034

Abstract: Abstract The study on dynamic fracture toughness (DFT) is of considerable practical interest because it can be used to predict cracked rock structure stability under blasting. The measurement method of dynamic fracture toughness under blasting… read more here.

Keywords: propagation; fracture; toughness; brittle materials ... See more keywords
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Two-dimensional dynamic damage accumulation in engineered brittle materials

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recommendations! Published in 2021 at "Engineering Fracture Mechanics"

DOI: 10.1016/j.engfracmech.2021.107539

Abstract: Abstract This paper details the dynamic materials testing of three advanced ceramics (CoorsTek Engineered Ceramics AD85 and AD995 alumina and a silicon carbide) and a cermet (Luminant TitanMade®) and discusses the observations of damage accumulation… read more here.

Keywords: poisson ratio; damage accumulation; damage; brittle materials ... See more keywords
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From continuum to quantum mechanics study on the fracture of nanoscale notched brittle materials

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recommendations! Published in 2021 at "International Journal of Mechanical Sciences"

DOI: 10.1016/j.ijmecsci.2021.106402

Abstract: Abstract The fracture of nanoscale notched brittle materials is investigated using the multi-scale analysis of cohesive zone modeling and first-principles calculations based on the notched nano-cantilever bending experiment. The fracture of nanoscale single-crystal silicon is… read more here.

Keywords: nanoscale notched; fracture; fracture nanoscale; brittle materials ... See more keywords
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Discrete crack dynamics: A planar model of crack propagation and crack-inclusion interactions in brittle materials

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recommendations! Published in 2018 at "International Journal of Solids and Structures"

DOI: 10.1016/j.ijsolstr.2018.02.036

Abstract: Abstract The Multipole Method (MPM) is used to simulate the many-body self-consistent problem of interacting elliptical micro-cracks and inclusions in single crystals. A criterion is employed to determine the crack propagation path based on the… read more here.

Keywords: crack dynamics; crack propagation; brittle materials; discrete crack ... See more keywords
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Microstructural origins of crushing strength for inherently anisotropic brittle materials

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recommendations! Published in 2022 at "International Journal of Solids and Structures"

DOI: 10.1016/j.ijsolstr.2021.111399

Abstract: We study the crushing strength of brittle materials whose internal structure (e.g., mineral particles or graining) presents a layered arrangement reminiscent of sedimentary and metamorphic rocks. Taking a discrete-element approach, we probe the failure strength… read more here.

Keywords: failure strength; strength; origins crushing; crushing strength ... See more keywords
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Ductile-regime machining model for ultrasonic elliptical vibration cutting of brittle materials

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recommendations! Published in 2018 at "Journal of Manufacturing Processes"

DOI: 10.1016/j.jmapro.2018.09.029

Abstract: Abstract Ultrasonic elliptical vibration cutting (UEVC) is attracting much attention in ultra-precision machining of brittle materials as it was found be able to effectively increase the critical depth of cut (dc) of brittle materials. However,… read more here.

Keywords: ductile regime; vibration; brittle materials; regime machining ... See more keywords
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A multi-mechanism constitutive model for the dynamic failure of quasi-brittle materials. Part II: Integrative model

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recommendations! Published in 2019 at "Journal of the Mechanics and Physics of Solids"

DOI: 10.1016/j.jmps.2019.06.015

Abstract: Abstract In Part I, we established a model for amorphization during the failure of quasi-brittle materials. In this Part II, we present a multi-mechanism physics-based constitutive model which incorporates amorphization, microcracking and granular flow as… read more here.

Keywords: part; failure quasi; model; quasi brittle ... See more keywords
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Finite element implementation of the coupled criterion for numerical simulations of crack initiation and propagation in brittle materials

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recommendations! Published in 2018 at "Theoretical and Applied Fracture Mechanics"

DOI: 10.1016/j.tafmec.2017.07.010

Abstract: The proposed numerical model for simulating two-dimensional cracking process in brittle materials is based on the coupled criterion (CC) which enters in the general framework of Finite Fracture Mechanics. It states that both the energy… read more here.

Keywords: finite element; initiation; brittle materials; coupled criterion ... See more keywords