Transonic twinning from the crack tip

被引:18
作者
Cerv, J [1 ]
Landa, M [1 ]
Machová, A [1 ]
机构
[1] Inst Thermomech AV CR, Prague 18200 8, Czech Republic
关键词
defect kinetics; iron; computer simulation; many-body theory;
D O I
10.1016/S1359-6462(00)00456-5
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Plane strain molecular dynamic (MD) simulations were performed to study the transonic twin extensions from the crack tip under a gradual loading in mode I and under static condition to eliminate the influence of loading rate on the process. The same short ranged N-body potential, boundary conditions, crystal and crack orientation were used. The study focused on the kinetics of twin extension from the crack tip into the bulk.
引用
收藏
页码:423 / 428
页数:6
相关论文
共 10 条
[1]   Computer simulation of point defect properties in dilute Fe-Cu alloy using a many-body interatomic potential [J].
Ackland, GJ ;
Bacon, DJ ;
Calder, AF ;
Harry, T .
PHILOSOPHICAL MAGAZINE A-PHYSICS OF CONDENSED MATTER STRUCTURE DEFECTS AND MECHANICAL PROPERTIES, 1997, 75 (03) :713-732
[2]   THE DEFORMATION AND FRACTURE OF ALPHA-IRON AT LOW TEMPERATURES [J].
BIGGS, WD ;
PRATT, PL .
ACTA METALLURGICA, 1958, 6 (11) :694-703
[3]  
DIENES JG, 1987, J PHYS CHEM SOLIDS, V40, P1015
[4]  
FINKEL MV, 1970, FIZ MET METALLOVED, V29, P1248
[5]   Dislocations faster than the speed of sound [J].
Gumbsch, P ;
Gao, H .
SCIENCE, 1999, 283 (5404) :965-968
[6]   FRACTURE SIMULATIONS USING LARGE-SCALE MOLECULAR-DYNAMICS [J].
HOLIAN, BL ;
RAVELO, R .
PHYSICAL REVIEW B, 1995, 51 (17) :11275-11288
[7]   Atomistic simulation of stacking fault formation in bcc iron [J].
Machová, A ;
Beltz, GE ;
Chang, M .
MODELLING AND SIMULATION IN MATERIALS SCIENCE AND ENGINEERING, 1999, 7 (06) :949-974
[8]   Dynamic overshoot in α-iron by atomistic simulations [J].
Machova, A ;
Ackland, GJ .
MODELLING AND SIMULATION IN MATERIALS SCIENCE AND ENGINEERING, 1998, 6 (05) :521-542
[9]   DYNAMIC TWINNING PROCESSES IN CRYSTALS [J].
ROSAKIS, P ;
TSAI, HY .
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES, 1995, 32 (17-18) :2711-2723
[10]   MULTILAYER STACKING FAULTS AND TWINS ON (211) PLANES IN BCC METALS [J].
VITEK, V .
SCRIPTA METALLURGICA, 1970, 4 (09) :725-&