Ideal brittle fracture of silicon studied with molecular dynamics

被引:182
作者
Holland, D [1 ]
Marder, M
机构
[1] Univ Texas, Ctr Nonlinear Dynam, Austin, TX 78712 USA
[2] Univ Texas, Dept Phys, Austin, TX 78712 USA
关键词
D O I
10.1103/PhysRevLett.80.746
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Dynamic fracture experiments measure crack velocity versus energy flux to the tip. We report here the first calculation of this quantity in a realistic setting, using molecular dynamics to study silicon. The results require relating the short length and time scales of simulations to the long length and time scales of experiments. [S0031-9007(97)05122-3].
引用
收藏
页码:746 / 749
页数:4
相关论文
共 17 条
[1]   Portrait of a crack: Rapid fracture mechanics using parallel molecular dynamics [J].
Abraham, FF .
IEEE COMPUTATIONAL SCIENCE & ENGINEERING, 1997, 4 (02) :66-77
[2]   DYNAMIC PHOTO-ELASTIC STUDIES OF FRACTURE [J].
DALLY, JW .
EXPERIMENTAL MECHANICS, 1979, 19 (10) :349-361
[3]   TOPOLOGICAL AND BONDING DEFECTS IN VITREOUS SILICA SURFACES [J].
FEUSTON, BP ;
GAROFALINI, SH .
JOURNAL OF CHEMICAL PHYSICS, 1989, 91 (01) :564-570
[4]   INSTABILITY IN THE PROPAGATION OF FAST CRACKS [J].
FINEBERG, J ;
GROSS, SP ;
MARDER, M ;
SWINNEY, HL .
PHYSICAL REVIEW B, 1992, 45 (10) :5146-5154
[5]  
Freund L. B., 1990, DYNAMIC FRACTURE MEC
[6]  
Griffith A.A., 1921, PHILOS T R SOC A, V221, P163, DOI DOI 10.1098/RSTA.1921.0006
[7]   Molecular dynamics investigation of dynamic crack stability [J].
Gumbsch, P ;
Zhou, SJ ;
Holian, BL .
PHYSICAL REVIEW B, 1997, 55 (06) :3445-3455
[8]   Morphology of pores and interfaces and mechanical behavior of nanocluster-assembled silicon nitride ceramic [J].
Kalia, RK ;
Nakano, A ;
Tsuruta, K ;
Vashishta, P .
PHYSICAL REVIEW LETTERS, 1997, 78 (04) :689-692
[9]  
Kulakhmetova SA, 1984, MECH SOLIDS, V19, P101
[10]  
Lawn B, 1993, FRACTURE BRITTLE SOL