An atomic-scale evaluation of the fracture toughness of silica glass

被引：3
作者：
Jones, R. E. [1 ]
Rimsza, J. M. [2 ]
Criscenti, L. J. [2 ]
机构：
[1] Sandia Natl Labs, Mech Mat Dept, POB 969, Livermore, CA 94551 USA
[2] Sandia Natl Labs, Geochem Dept, POB 5800, Albuquerque, NM 87185 USA
来源：
JOURNAL OF PHYSICS-CONDENSED MATTER | 2018年 / 30卷 / 24期
关键词：
glass; fracture; atomistic simulation; J-integral; ENERGY-RELEASE RATES; MOLECULAR-DYNAMICS; CRACK-PROPAGATION; BRITTLE-FRACTURE; STATISTICAL-ANALYSIS; AMORPHOUS SOLIDS; ZONE MODEL; SURFACE; SIMULATIONS; STRESS;
D O I：
10.1088/1361-648X/aac28b
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Using an atomistic technique consistent with continuum balance laws and drawing on classical fracture mechanics theory, we estimate the resistance to fracture propagation of amorphous silica. We discuss correspondence and deviations from classical linear elastic fracture mechanics theory including size dependence, rigid/floppy modes of deformation, and the effects of surface energy and stress.
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页数：14
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