塑性应变,plastic strain
1)plastic strain塑性应变
1.Preparation and evaluation of stress-elastic andplastic strain diagrams of sintered steels;烧结钢的应力-弹性及塑性应变曲线的制作与评价
2.Study on the impact of process parameters on the reliability of quad flat package solder joints based on shape prediction andplastic strain calculation;基于焊点形态预测与塑性应变计算的工艺参数对QFP焊点可靠性影响分析
3.Finite element simulation and analysis of theplastic strain in cross rolling for AZ31 magnesium alloyAZ31镁合金交叉轧制塑性应变有限元模拟分析
英文短句/例句
1.It is assumed that plastic deformation stems from the localization of shear strain.岩样的塑性变形假设根源于塑性应变局部化。
2.Development of a Model for Rock Damage Caused by Plastic Strain and Its Application岩石塑性应变损伤模型的建立及应用
3.degree of planer anisotropy of the plastic strain ratio塑性应变比平面各向异性度
4.EVALUATION METHOD OF FATIGUE DAMAGE UNDER VARIABLE AMPLITUDE STRESS BASED ON PLASTIC STRAIN基于塑性应变的变幅应力疲劳损伤评估方法
5.LCF life could be well expressed by plastic strain energy.低周被劳寿命可由塑性应变能表达。
6.Effect of Specimen Size on the Plastic Strain Ratio r of steel plate试样尺寸对钢板塑性应变比r的影响
7.Application of a New Method for Strain Measurement in Complex Forging复杂锻件成形中塑性应变的测试新方法及应用
8.extrusion stress(塑性变形的)挤压应力
9.Research on Flow Stress Behavior of Super Alloy GH4145 During High Temperature Plastic DeformationGH4145高温合金热塑性变形流变应力研究
10.Conventional Theory of Mechanism-based Strain Gradient Plasticity (CMSG) and Its Applications;CMSG低阶应变梯度塑性理论及其应用
11.Analysis of Stress-Strain State During Metal Plastics Machining;金属塑性加工中应力——应变状态分析
12.Characteristically, the strains in the plactic region are much greater than in the elastic region.很明显，塑性阶段的应变远大于弹性阶段的应变。
13.The hardening function was formed by incorporating an equivalent plastic deviator strain and a volume strain.联合等效塑性偏应变和体应变构造硬化函数.
14.Superplasticity of TA15 Titanium Alloy Induced by Strain Rate CyclingTA15合金应变速率循环超塑性研究
15.The elastic-plastic analysis of concreted beam based on rheological effect基于流变效应混凝土梁的弹塑性分析
16.Fracture and Finte Deformation of Strain Gradient Plasticity Theory;应变梯度塑性理论断裂和大变形的研究
17.Influence of Strain Rate on Grain Refinement by Plastic Deforming;应变速率对强塑性变形晶粒细化的影响
18.Deformation in Orthogonal Micro-cutting Based on Strain Gradient Plasticity Theory基于应变梯度塑性理论的正交微切削变形研究
相关短句/例句
value of plastic strain ratio塑性应变比
1.The hardening exponent,value of plastic strain ratio,yield strength,tensile strength,even percentage elongation and other mechanical performances have been studied.对400MPa超级钢板材进行了拉伸试验、冷弯试验和金相组织检验,获得了超级钢板的硬化指数、塑性应变比、屈服强度、极限强度等力学性能,并分析了400MPa超级钢板的冲压成形性能,了解这些性能对超级钢冲压件在汽车行业里的应用与生产具有一定的指导作用。
2.The mechanical performances such as hardening index,value of plastic strain ratio,yield stre.研究了超级钢板的硬化指数、塑性应变比、屈服强度、极限强度、均匀延伸率等机械性能,并分析了超级钢板的冲压成形性能,超级刚具有较好的胀形性能、拉深性能、弯曲性能,抗起皱性能等冲压性能,可以广泛地应用于汽车冲压零件生产中。
3)Plastic strain ratio塑性应变比
1.Analysis on uncertainty of plastic strain ratio-r ratio of metallic sheet;金属薄板塑性应变比r值的测量不确定度分析
2.Effects of electric field annealing on plastic strain ratio(r value)of IF(interstitial free)deep drawing steel sheet were studied by mean of tensile test.通过拉伸实验研究了电场退火(850℃,25min)对IF深冲钢板塑性应变比(r值)的影响。
3.Based on the models of continues mechanics of textured polycrystals (CMTP) and Kochend(?)rfer in which the quadric yield function form is employed, the plastic strain ratio (R-values) of polycrystalline metal (deep-drawing IF steel sheets) is calculated by the approaches of modified maximum entropy method (MMEM) of low-resolution texture analysis and harmonic method.采用反射低分辨改进最大熵三维取向分布函数法(MMEMODF)和级数展开法(简ODF),按照织构多晶体连续力学法(CMTP),遵循Konchendrfer模型,选择非二次型屈服函数来预估多晶体深冲IF钢板的塑性应变比R值。
4)plastic strain energy塑性应变能
1.A method for estimating fatigue damages of bracing members based onplastic strain energy;基于塑性应变能的钢支撑疲劳损伤评估方法
2.The variety of the stress-displacement curve area is selected to be the damage variable instead of theplastic strain energy per cycle.通过316L钢在420℃环境下应力控制的低周疲劳实验,基于连续损伤力学,提出一种新的低周疲劳损伤模型,采用 间接反映循环塑性应变能的应力-位移曲线面积的变化作为损伤变量,实验结果与该模型显示的疲劳损伤演变规律符合较好。
3.The totalplastic strain energy of a stationary crack per cycle was calculated through 2-D elastic plastic finite element analysis under constant amplitude fatigue loading,and the nonlinear relation of totalplastic strain energy with stress intensity factor range was obtained.通过二维弹塑性有限元计算得到I型静态裂纹在常幅疲劳载荷下裂纹尖端塑性应变能,进而获得裂纹尖端塑性应变能和应力强度因子幅值的非线性关系;根据能量平衡概念,建立了裂纹扩展速率与裂纹尖端塑性应变能的关系。
5)Principal plastic strain塑性主应变
6)plastic strain amplitude(ε_(pa))塑性应变幅
1.The effects of grain size and plastic strain amplitude(ε_(pa)) on hysteresis energy in cyclic deformation of polycrystalline copper are studied.研究了多晶铜循环形变中晶粒尺寸和塑性应变幅对滞回能的影响。
延伸阅读
板成形应变分析板成形应变分析strain analysis of sheet metal forming上，即可确定其应变路径。如果只有一块坯料，应变路径可通过以不同的冲压行程增量再次冲压同一块坯料，并测量两次冲压间的应变值得到。 (邓险王先进)banehengxing yingbian fenx*板成形应变分析(strain analysis of sheetmetal forming)薄板冲压成形时对制件上应变的分布和变化的确定。薄板冲压时制件上各点的应变值很少保持一致，实际上，从一点到另一点，应变值可能有着剧烈的变化。如果某一点的成形应变达到薄板的最大允许应变量—极限变形量，就达到了薄板的成形极限。超过了这一极限，薄板就会破裂。即使制件上的绝大部分不超过成形极限，但只要有一点破裂，就应认为整个制件已破坏。如果薄板的成形极限已知，为了评估实际成形的难易并设计出能够防止制件破坏的冲压成形方案，就需要进行薄板成形应变分析。薄板冲压成形的成功在很大程度上取决于在特定加载条件下金属的变形行为。多数可成形薄板在进行双轴向拉伸或受到拉力和压力的综合作用时，都以相似的方式变形，但是，成形应变及其分布，可能有相当的差异。这种差异是由于材料性质，如加工硬化程度，断裂应变和塑性各向异性等的不同以及材料与工艺交互影响(测量仪器影响、薄板与模具间摩擦的影响、压力机速度的影响等)而产生的。通过薄板成形应变分析可以获得冲压制件在特定变形条件下的应变分布、变形方式、高应变区域以及各种因素对成形的影响等，从而能明确经济性最佳的冲压成形条件，或防止和避免冲压制件发生破坏的途径及方法等。在20世纪70一80年代，薄板成形应变分析已从一个试错的过程发展成为一门工程科学，成形应变和成形极限已可用应变百分比(或长度变化百分比)定量地测量，并可对两者进行比较，以确定制件的成形难度。而在此之前，一个制件是否破坏或接近破坏的程度只能通过统计生产中废品数量来确定。薄板成形应变分析的内容主要有4部分:(l)确定冲压制件的成形应变在制件上的分布(应变分布);(2)确定制件上任一特定点的应变随制件的成形而增加的规律(冲压制件的应变历史)，(3)确定薄板的成形极限，并将成形应变与之比较。成形极限通常以成形机限图表示;(4)将冲模、压力机、薄板和润滑剂当成恶化(或增加)成形应变的因素来评定。进行薄板成形应变分析主要依靠板成形网格M.]黄技术。
