金属学报  1982, Vol. 18 Issue (3): 326-335

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用计算机模拟有源位错群的滑移运动——在交变载荷作用下有源位错群的运动特性

巴图;雷琼芝;师昌绪

中国科学院金属研究所;中国科学院金属研究所;中国科学院金属研究所

THE DYNAMICAL BEHAVIOUR OF A DISLOCATION GROUP CONTAINING A SOURCE UNDER ALTERNATING LOADING

Patu; Lei Oiongzhi; Ski Changxu (Shih Chang-hsu) (Institute of Metal Research; Academia Sinica; Shenyang)

巴图;雷琼芝;师昌绪. 用计算机模拟有源位错群的滑移运动——在交变载荷作用下有源位错群的运动特性[J]. 金属学报, 1982, 18(3): 326-335.
, , . THE DYNAMICAL BEHAVIOUR OF A DISLOCATION GROUP CONTAINING A SOURCE UNDER ALTERNATING LOADING[J]. Acta Metall Sin, 1982, 18(3): 326-335.

摘要 参考文献 相关文章 Metrics 全文: PDF(764 KB)   摘要: 本文利用计算机模拟的方法研究了在交变载荷作用下有源位错群的动力学特性。计算结果表明,在交变载荷作用下有源位错群的滑移运动是不可逆的。经过每次应力循环后,位错群并不能恢复到原来的状态,位错群中仍残存ΔN个位错,领先位错距源仍有Δx_1距离。得出了ΔN、Δx_1与应力幅(τ)、应力周期(T)和应力循环次数的关系。 Abstract：The computer simulation method was used to study the dynamical bchaviour of an array of long, straight, parallel coplanar dislocations containing a source under alternating loading which is sinusoidal function of time. It has been found that under alternating loading the glide motion of such a group is irreversible. After each loading cycle, the dislocation group can not recovered to its initial state, and there are ΔN dislocations in the group and the leading dislocation is still at Δx_1 distance from the source. The relation among ΔN, Δx and the loading amplitude, the loading period, the number of loading cycles was also deduced. 收稿日期: 1982-03-18      服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 巴图 雷琼芝 师昌绪 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1982/V18/I3/326 1 Eshelby, J. D.; Frank, F. C.; Nabarro, F. R. N., Philos. Mag., 42 (1951) , 351． 2 Cottrell, A. H,, Proc. R. Soc., A285 (1965) , 10． 3 Head, A. K., Philos. Mag., 26 (1972) , 43; 65． Head, A. K., ibid., 27 (1973) , 531． 4 Head, A. K.; Wood, W. W., Philos. Mag., 27 (1973) , 505; 519． 5 Rosenfleld, A. R.; Hahn, G. H., Dislocation Dynamics, Eds. Rosenfleld, A. R.; Hahn, G. H., McGraw-Hill, 1968, p. 255． 6 Kanninen, M. F.; Rosenfleld, A. R., Philos. Mag., 20 (1969) , 569． 7 Rosenfield, A. R.; Kanninen, M. F., Philos. Mag., 22 (1970) , 143． 8 Yokobori, T.; Yokobori, A. T., Jr.; Kamei, A., Philos. Mag., 30 (1974) , 367． 9 Yokobori, A. T., Jr.; Yokobori, T.; Kamei, A., J. Appl. Phys., 46 (1975) , 3720． 10 Atsenault, R. J.; Cadman, T. W., Scr. Metall., 12 (1978) , 633． 11 Arsenault, R. J.; Kuo, C. J. K., Metall. Trans., 9A (1978) , 459． 12 Yokobori, A. T., Jr.; Yokobori, T.; Kamei, A., Mater. Sci. Eng., 40 (1979) , 111． 13 巴图;雷琼芝,金属学报,17(1981) ,177． 14 Patu; Lei, C. Z.; Shih, C. H., Mater. Sci. Eng., 49(1981) ,135． 15 巴图;何怡贞,物理学报,29(1980) ,698． , No related articles found! Viewed Full text Abstract Cited   Shared      Discussed