STRESS STRESS语言,结构工程系统解答器语言(=STRuctural Engineering System Solver)一种问题导向的程序设计语言,用于解决结构工程问题。 stress strain 应力应变 stress out a. 极度焦虑的;非常紧张的 stress free adj. 无压力的 stress mark n. 重音符号 stress deviation 应力偏差 over stress 【化】 过应力...
Peierls Stress可以说是原子的点阵阻力，金属在进行变形时，在内部，一来有Peierls Stress，另一方面有discrete obstacles,比如说沉淀强化， 后者的话是需要热力学激活的，单纯轮Peierls Stress也就是位错的运动所需要的最小的力.
stress analysis/ Peierls stressscrew dislocationfirst neighbours interactionsatom interaction energyglissile configurationsessile configuration/ A6170G Dislocations: theoryA simple model of a screw dislocation with first neighbours interactions is presented. The interaction energy of atoms is a piece-wisely ...
peierls-nabarro stress泰勒公式 我们要了解Peierls-Nabarro应力,以及泰勒公式。 首先,我们需要理解这两个概念的定义和它们之间的关系。 1.Peierls-Nabarro应力: 当晶体受到外力作用时,晶格中的原子或分子的位置会发生微小的移动。 Peierls-Nabarro应力描述了这种原子或分子的移动与外力之间的关系。 2.泰勒公式: 泰勒公式...
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Peierls stresses have been obtained by applying the shear stress to the model under which the structure is allowed to relax. The calculated Peierls stresses are largely reduced compared with those previously obtained by the original PN model (Kamimura et al., 2018), although the dislocation widths...
重庆大学博士学位论文基于离散效应修正的位错芯结构及Peierls应力计算姓名:***请学位级别:博士专业:凝聚态物理学指导教师:**峰20090525中文摘要摘要晶体材料中存在大量的位错缺陷,这些位错缺陷对晶体的电学、光学、磁学、特别是力学性质具有重要的影响。位错缺陷的中心问题是位错的芯结构问题。位错芯结构与表征位错滑移性的...
But under the condition of τ < τp, the dislocation density is determined by the Peierls stress and thus insensitive to the change of the applied stress. It is observed that these predictions are in excellent agreement with available experimental data. It is thus concluded that the operation ...
Using extensive data on metals, ceramics and silicates, it is demonstrated that power law dislocation creep transits to Harper-Dorn creep at the Peierls stress of a crystal. This transition at such a stress level is perhaps induced by the dislocation density being dependent upon the applied stress...
M. S. Duesbery. On Kinked Screw Dislocations in the BCC Lattice I: The Structure and Peierls Stress of Isolated Kinks. Acta Metallurgica. 1983, Vol. 31, 10, pp. 1747-1750.On kinked screw dislocations in the b.c.c. lattice–I. The structure and peierls stress of isolated kinks Acta ...