Then an analytical model for axisymmetric case is developed based on the total strain theory and membrane assumption.
基于全量塑性理论及膜应变假定,推导了轴对称情况的解析计算模型;
At low and intermediate total strain amplitudes, the fatigue life was found to decrease with the increasing of temperature.
结果表明,在中等应变幅值之下,材料的疲劳寿命随温度的增加而降低。
The fatigue behavior of as-cast and as-extruded AZ91 magnesium alloys was investigated under total strain amplitude control mode.
研究了铸态和挤压态az91镁合金的室温应变疲劳行为。
The total strain is thus made up of elastic strain, possibly combined with plastic strain that results from slip, creep, or both.
这样,应变包含了弹性应变、滑移导致的塑性应变,徐变或I?两者皆有。
Only a small part of the total strain energy is recovered. The recovered energy is the elastic energy that is stored during reeling.
挠性油管在缠绕过程中的大部分的应变能都被耗散掉(转化成热),只有一小部分应变能可以恢复。
The low cycle fatigue behavior of in-situ composites was investigated under total strain-controlled conditions at the room temperature.
研究了应变控制原位生成复合材料的室温低周疲劳行为。
This problem can be solved in total strain plasticity directly by the method presented. No iterative process is required to obtain the real solution.
本文介绍了对该问题的全量直接求解方法,无需迭代,方法本身不引起误差。
Subtracting the elastic strain from the total strain yields the non-local plastic shear strain that depends on the flow stress and the damage variable.
将非局部总应变减去弹性应变,可得剪切带的非局部塑性应变。
According to the total strain energy failure theory author provides calculate formula of creep Life loss in creep deformation accumulation of steam pipe.
根据总应变能理论,作者提出按管子累积蠕变变形量计算寿命损耗量。
During the transient creep after stress decrease, it has been found that the total strain transient consists of two components, elastic strain and anelastic strain.
当外加应力突然降低后,在瞬时蠕变过程中发生了弹性应变和滞弹性应变,整个降载过程中的应变变化值与应力变化值成线性关系。
Based on the stress - strain curve uith Power series, the asymptotic nalytical solution of rotating disks uith strain-hardening is obtained from the total strain theory.
采用全量理论和幂级数形式的应力一应变曲线,导出了弹塑性强化材料旋转园盘的渐近解。
It is concluded that the total strain theory can be used as a substitute for the incremental strain theory to analyse the force and deformation in sheet metal deep-drawing process.
结果表明,全量理论可代替增量理论分析、计算拉延成形过程的力和变形等。
For plastic deformation theory, it is assumed that the plastic strain tensor is proportional to the total strain deviation tensor and the ratio is a sealer 'function of the effective total strain.
对于形变理论,假定塑性应变张量与总应变偏量张量成比例,其比例因子是总有效应变的标量函数。
With the total strain theory and membrane assumption and taking the normal anisotropy of sheet metal into consideration, initial blank size can be directly calculated from desired flanging height.
在该算法中,采用了全量塑性理论及膜应变假定,并考虑了板材的厚向各向异性,可以直接从所需的翻边高度计算出初始坯料的尺寸。
Results The total strains of Acinetobacter baumannii isolated from this hospital was increased from12strains in2001to63strains in2005, and a panresistant strain was detected in the last five years.
结果鲍曼不动杆菌检出由2001年全年12株上升至2005年全年63株。5年中一株全耐株;高耐株、泛耐株共占15.6%。
In this method, based on the measured strain values, the joint load is calculated by the fitted curve equation and compared with the total load applied during test.
该方法以测量的应变值为基础,由拟合的曲线方程计算接头载荷,并与试验时施加的总载荷对比。
The total deformation of soils consists of three parts: elastic strain, plastic strain related to volumetric yielding mechanism and plastic strain related to shear yielding mechanism.
土体总的变形由三部分组成:即弹性应变、与体积屈服机制相关的塑性应变和与剪切屈服机制相关的塑性应变。
Development of the total temperature isopleths reflects summarily the process of the accumulation, the expansion and the release of strain.
总温度等值线的系列演变图概略地反映出了应变能的积聚扩展释放的全过程。
Curves of total stress and time, of cycle pore water pressure and time, of effective stress and time, of effective stress and axial strain are respectively studied.
研究了试样总应力、循环孔隙水压力、有效应力随时间的变化规律及试样有效应力与轴向应变的关系曲线。
They also show that a finer grain size can be obtained by dynamic recrystallization during superplastic deformation at a high strain rate, but the total elongation to failure is limited in about 135%.
合金在高应变速率的变形中通过动态再结晶可获得更细的晶粒尺寸,其断裂时总延伸率在135%左右。
Total weight and seismic strain energy of the structure were selected to be optimal objectives. Average diameter and wall thickness of the structural element were taken as design variables.
以结构的总重量最小和结构的总应变能最大为优化目标,以导管的平均直径和壁厚作为设计变量,考虑强度、刚度和稳定等约束条件。
The thesis recommended the theory of minimum strain energy, which says the total structural strain energy can be changed by the increase and decrease of constraint number.
本文介绍了通过在结构单元上增加或者减少不作功的不同约束点,可以改变结构单元应变能的大小的应变能极小原理。
By processing data of precursory earthquakes, we try to find the useful anomaly information from the data of strain and total geomagnetism intensity.
通过对区域前兆原始观测数据的处理,突出了这次地震前的应变和地磁总强度短临前兆异常信息。
So the comparison of large strain method and small strain method should be carried out with total stress method.
当应变很大时,大变形法和小变形法计算的沉降和孔压差异很大。因此,大小变形法分析结果的比较应采用总应力法。
For as long as I can remember, New York has been set on total canine default with feline being the deviant strain.
打我记事儿起,纽约就对犬类是青睐有加,对猫科却是另眼相待。
The results show that tensile strength and yield strength increase generally, while total elongation and product of strength and ductility decrease with the increase of strain rate.
结果表明,随应变率的增加,抗拉强度与屈服强度总体呈上升趋势,而断裂伸长率及强塑积单调下降。
The mortality was most highest with four kinds of viruses total infection group (78%), the QX strain infected group was lightest (35%).
并且以四种病毒的共感染组致病力最强,死亡率达78%;q X株感染组致病力最弱,死亡率为35%。
The computing formulae of the Young's moduli of SWCNT are obtained by comparing the total molecular potential energy of a SWCNT with the strain energy of a corresponding cylindrical thin shell.
然后通过总势能与相应薄圆柱壳的应变能比较,推导出了单壁碳纳米管杨氏模量的计算公式。
The stability of the high-yielding mutant was tested, the result showed that after passing 3 generations, the strain began to retrogress and the total titer had a substantial decline.
同时通过对高产菌株进行传代培养检验其传代稳定性,结果表明,传代3代后,菌株开始退化,并且其发酵效价有比较显著的下降。
The stability of the high-yielding mutant was tested, the result showed that after passing 3 generations, the strain began to retrogress and the total titer had a substantial decline.
同时通过对高产菌株进行传代培养检验其传代稳定性,结果表明,传代3代后,菌株开始退化,并且其发酵效价有比较显著的下降。
应用推荐