2015
DOI: 10.1016/j.engfracmech.2015.05.039
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Computational modeling and simulation of spall fracture in polycrystalline solids by an atomistic-based interfacial zone model

Abstract: The focus of this work is to investigate spall fracture in polycrystalline materials under high-speed impact loading by using an atomistic-based interfacial zone model. We illustrate that for polycrystalline materials, increases in the potential energy ratio between grain boundaries and grains could cause a fracture transition from intergranular to transgranular mode. We also found out that the spall strength increases when there is a fracture transition from intergranular to transgranular. In addition, analys… Show more

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Cited by 13 publications
(9 citation statements)
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“…All simulations were implemented using a custom-developed finite element package (Li et al, 2012; Lin et al, 2014a; Lin et al, 2015; Lin and Zeng, 2015; Zeng and Li, 2010, 2012). Uniaxial load (either tension or compression) was applied to the finite element model by assigning a uniform displacement on both the top and bottom edges of the model (Lin et al, 2014a), with the right and left side of the specimen kept unconstrained.…”
Section: Methodsmentioning
confidence: 99%
“…All simulations were implemented using a custom-developed finite element package (Li et al, 2012; Lin et al, 2014a; Lin et al, 2015; Lin and Zeng, 2015; Zeng and Li, 2010, 2012). Uniaxial load (either tension or compression) was applied to the finite element model by assigning a uniform displacement on both the top and bottom edges of the model (Lin et al, 2014a), with the right and left side of the specimen kept unconstrained.…”
Section: Methodsmentioning
confidence: 99%
“…The CaCO 3 grains were meshed using triangular elements. All simulations were implemented using a custom-made finite element package, which had been developed by Zeng and his co-workers (Li et al, 2012; Lin et al, 2014a; Lin et al, 2015; Lin and Zeng, 2015; Zeng and Li, 2010, 2012). Uniaxial load (tensile or compressive loading) was applied to the finite element model by assigning a uniform displacement on the top and bottom edges of the model (Lin et al, 2014a), with the right and left side of the specimen being set free.…”
Section: Numerical Simulationsmentioning
confidence: 99%
“…Откольное разрушение является одним из основных методов изучения процессов, протекающих в твердом теле в условиях динамического растяжения [1][2][3][4][5]. Рас-смотрение волновых процессов, характерных для от-кольной задачи, позволяет найти импульс напряжений, приводящий к разрушению [1,2].…”
Section: Introductionunclassified
“…Показано, что предельные напряжения при динамических воздействиях для образцов из разных партий существенно отличаются, несмотря на единый химический состав и одинаковую прочность в статике. DOI: 10.21883/JTF.2017.04.44312.1931 Введение Откольное разрушение является одним из основных методов изучения процессов, протекающих в твердом теле в условиях динамического растяжения [1][2][3][4][5]. Рас-смотрение волновых процессов, характерных для от-кольной задачи, позволяет найти импульс напряжений, приводящий к разрушению [1,2].…”
unclassified