Impact fragmentation of an ideal brittle crystal
Impact fragmentation of an ideal brittle crystal
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DOI：
10.1103/physrevb.53.14828
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发表时间：
1996-06-01
影响因子：
3.7
通讯作者：
Hayakawa, Y
中科院分区：
文献类型：
--
作者：
Hayakawa, Y
提出了脆性晶体碎片的确定性模型。在建模中，考虑了粘弹性材料的动力学，尽管材料的不均匀性和片段之间的相互作用被完全忽略以降低计算成本。通过用于冲动载荷的数值模拟，我们分析了片段化过程中的过程，并发现碎片的幂律质量分布无敏感地出现在材料特定参数上。假设质量分布函数的有限尺寸缩放形式，我们提出了质量分布指数的表达式，该表达式与数值结果和实验数据一致。
A deterministic model of fragmentation of a brittle crystal is presented. In the modeling, dynamics of a viscoelastic material is taken into account, though inhomogeneity in material and interactions between fragments are totally neglected to reduce computational costs. By numerical simulations for impulsive loadings, we analyze the processes during fragmentation, and find that a power-law mass distribution of fragments emerges insensitively to material specific parameters. Assuming a finite-size scaling form of the mass distribution function, we present an expression for the exponent of mass distribution, which gives agreement with numerical results and experimental data.