晶体塑性成形理论涉及到多方面的问题。
The theory of crystal plastic deformation involves several facets.
作者还根据晶体塑性力学理论，分析了产生这种变化的根源。
The crystallographic nature of cutting force variation was analyzed based on crystal plasticity.
基于率相关晶体塑性本构模型，实现了晶体塑性学有限元模拟过程。
Crystal plasticity finite element modeling (CPFEM) is realized on the basis of crystal plasticity theory of rate dependent polycrystal constitutive relations.
基于韧性单晶体实验现象，建立了描述晶体塑性变形的离散滑移模型。
Based on the experiment results of single crystals, a discrete slip model is established to describe the crystal plastic deformation.
从材料的多晶体结构角度，基于晶体塑性变形理论建立了多晶体模型。
From the viewpoint of multi-grain structure of material, a polycrystal model is founded based on the crystal plasticity theory.
采用速率敏感晶体塑性理论，预测了面心立方金属板材单轴拉伸过程中主要理想取向的稳定性。
Orientation stability during uniaxial tension of face-centered cubic (FCC) metal sheets is predicted using a rate-sensitive crystal plasticity model.
基于晶体塑性理论及数理统计理论，建立了流动应力波动幅度与晶粒尺寸和坯料几何尺寸间的关系。
Based on the crystal plasticity theory and mathematical theory of statistics, the relation of flow stress fluctuation quantity to grain dimension as well as billet dimensions was built.
基于晶体塑性变形的滑移机理和微观硬化机制，建立了相应的运动学描述和基于率无关的晶体本构方程。
Based on crystalline plasticity slip and strain hardening model, a rate-independent polycrystalline plasticity model was developed and introduced into finite element method.
晶体塑性理论起源于20世纪20年代，包括单晶塑性本构理论和多晶塑性本构理论，能够深刻揭示材料变形的规律。
Crystal plasticity theory stemming from 1920s includes single crystal constitutive theory and polycrystal constitutive theory, which disclosures laws of material deforming.
在冲击加载下，晶体材料中产生了位错和塑性变形。在强冲击时还可出现相变变化。
Dislocation and plastic deformation was produced in crystal material under shock loading. phase change could occur when shock loading was strong.
目前，国内外通常采用单点金刚石车削的方法对KDP晶体在塑性阈内进行加工。
At present, the KDP crystal is usually processed by Single Point Diamond Turning within the plastic domain both here and abroad.
提出了压痕实验与有限元仿真结合的方法。它采用压痕深度与有限元仿真深度进行对比，可求解出KDP晶体的塑性特性参数。
A method combining indentation test with finite element simulation is proposed to obtain the ductile parameters of KDP crystal by comparing indentation depth with finite element simulation depth.
这样的装置具有高的能量密度提供能力并兼具中性有机塑性晶体基质例如丁二腈的有利性能。
Such devices have high energy density delivery capacity combined with the favourable properties of a neutral organic plastic crystal matrix such as succinonitrile.
由于约束较少，孔洞周围和两孔洞间的区域塑性变形较大，晶体的转动和滑移主要集中在孔洞周围以及两孔洞间的区域。
The rotation of the crystalline lattice and plastic activity on slip systems are mainly concentrated in the region around voids.
在晶体滑移系上引入与材料即时响应有关的塑性阻尼器及与材料粘性有关的牛顿阻尼器以计及材料滑移系的粘塑性特性。
Plastic dashpots reflecting the material transient response and Newton dashpots mirroring the material viscosity are introduced to describe the viscoplasticity of slip systems.
对B27与抗原肽复合物晶体结构的研究表明，B27与抗原肽结合具有特异性和可塑性，不同亚型具有不同的结合特点。
Research about crystal structure of HLA-B27-peptide complexes suggested the specificity and plasticity of peptide-binding and subtypes dependent binding features.
由于镁晶体为密排六方结构，镁合金的室温塑性加工能力较低，因而很有必要研究镁合金的热拉伸性能，壳形件热拉深成形及其有限元模拟，为今后镁合金塑性加工提供必要技术支持。
So it is necessary to study hot stretch properties, hot drawing of shell parts and its finite element simulation of magnesium alloys for providing technical supports of plastic processing.
由于镁晶体为密排六方结构，镁合金的室温塑性加工能力较低，因而很有必要研究镁合金的热拉伸性能，壳形件热拉深成形及其有限元模拟，为今后镁合金塑性加工提供必要技术支持。
So it is necessary to study hot stretch properties, hot drawing of shell parts and its finite element simulation of magnesium alloys for providing technical supports of plastic processing.
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