The modulus, modulus of elasticity in tension, or coefficient of elasticity is the ratio of the stress to the strain in the elastic region of the stress-strain diagram. 模量,拉伸载荷下的弹性模量,也就是应力-应变图中弹性变形区域的应力与应变之比,也称为弹性系数。
The straight-line portion of the diagram up to almost the yield point is known as the elastic region of the diagram. 从图表中的直线开始上升一直到屈服极限点是弹性变形区域。
The yield point represents the dividing line or transition from the elastic to the plastic region of the curve. 屈服点是弹性变形区域到塑性变形区域之间曲线的过渡点。
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。
The re-sults show that for general compressible materials, the mede I plane strain crack-tip field is fully plas-tic, there is no unloading elastic region. 结果表明,对于可压缩材料I型平面应变尖端场是完全由塑性区组成,没有弹性卸载区。
According to the experimental results, it is understood that placing steel bar in filled concrete will effectively restrain the generation of bending cracks in elastic region, avoid the shear failure of filled concrete, and improve the bending bearing capacity and ductility of RCFT beams. 结果表明,在充填混凝土中配置钢筋可以有效地抑制弹性区域初期阶段弯曲裂缝的产生,并防止塑性区域贯通截面的弯剪破坏,大幅度改善了RCFT梁的弯曲承载力和延性等力学性能。
The experimental results have shown that the main point of applying the method is just based on the strain overlap increment in elastic region, not plastic region, apart from the indentation. But there is no any evidence from theoretic analysis. 已有试验结果表明,该方法的有效应用必须基于避开压痕周围的塑性区,利用压痕外的弹性区应变增量变化规律,但目前尚无定量的理论分析结果。
We have proved that Boussinesq-Galerkin solution and Hu Hai-chang solution are equivalent if the elastic region is convex in the z-direction. 在Z-向凸区域的条件下,Boussinesq-Galerkin解和胡海昌解是等价的。
The Boundary Integral Equations and Some Analytical Solutions in Elastic Circular Region 弹性圆域的边界积分方程及若干解析解
Distributions of stress and particle velocity in the elastic unloading region behind the plastic shock wave are given as well. 同时给出了塑性激波后方弹性卸载区内的应力和质点速度分布规律。
The results show that the stress strain curve of ceramic foam under compression is not similar to that of the foamed material characterized by three distinct regions, and it only consists of a collapse plateau region and a densification region but without an elastic region. 结果表明:泡沫陶瓷受压缩的应力-应变曲线并不具备泡沫材料受压缩的典型应力-应变曲线的三阶段特征,它没有明显的弹性变形段,只有屈服平台段和紧实段;
An Elastic Steady State Security Region with Stochastic and Fuzzy Loads 基于随机与模糊负荷的可伸缩有功静态安全域
According to Fredholm's theorem, this paper proves that due to the virtual fundamental loads-which satisfy the boundary conditions and being distributed outside the elastic body occupied region, the displacement and the stress fields in the elastic body occupied region are unique. 根据Fredholm定理,本文证明了由满足边界条件的分布于弹性体所占的区域之外的虚的基本载荷引起的弹性体所占的区域之内的位移和应力场是唯一的。
In this paper, non-uniqueness of the solution of the Boussinesq-Galerkin in elasticity is defined. It is proved that if the elastic region is z-convex, the vector B_3 could be eliminated. 本文确定了Boussinesq-Galerkin弹性通解(以下简称B-G解)的不唯一程度,并证明了如果弹性区域是z向凸的,那么B3可以省略,在非z向凸的弹性区域。
Elastic fields in the region near an interface in the crystal anisotropic theory 晶间界面附近区域中的弹性场&各向异性理论
The method developed in this paper offers an effective method for solving the plane elastic problems on complex multiply connected region. 本文发展的分析方法,为求解复杂多连通域的平面弹性问题提供了一条有效途径。
The total element strain rate formulations of elastic region and plastic region are given, the methods of computing initial strains, such as thermal strain, strain due to phase transformation and phase-transformation plasticity, are presented. 根据淬火过程热物性参数及组织转变的特点,给出了处于弹性区和塑性区的单元应变增量表达式,及热应变、相变应变、相变塑性等初应变的计算方法。
The shear stresses are linearly distributed in plastic region and parabolically in elastic region for the beam made of linear strengthening material in elastoplastic phase. The practical result is of fair precision fot engineering application. 结果说明,横力弯曲时,处于弹塑性阶段的线性强化材料制成的梁,剪应力在塑性区成线性分布,在弹性区成抛物线分布。
Some general formulations of the second fundamental problem in plane elasticity are proposed here when the displacements given on the closed boundary contours of a multi-connected elastic region are relative to certain rigid motions which are different to each other for different boundary contours. 本文给出了平面弹性第二基本问题的一般提法,这里在多连通弹性区域的各个闭边界围线上给出的位移只是相对的,各允许有一不同的刚性移动。
In general cases, the suggested method usually avoids the reformation and factorization of coefficients in elastic region of the stiffness matrix completely, so as to raise the computational efficiency. 一般情况下,它可以完全避兔结构弹性区域刚度矩阵系数的重新形成和分解,从而达到提高计算效率,降低计算费用的目的。
The tensile stress-strain curves of open cells and closed cells all showed short elastic deforming region and plastic region without apparent plastic point. 结果表明:开孔和闭孔泡沫铝的拉伸曲线由线弹性变形段和塑性变形段组成,线弹性变形段很短,塑性屈服中没有出现明显的屈服点;
For a cracked specimen of elastoplastic material, the displacement along loading line A divides into two parts, the elastic part △ c1 and the plastic part △ p, beyond the elastic region. 一个弹塑性材料裂纹试样的沿加载线的性移Δ在弹性范围之外可分成两部分:弹性部分Δe1和塑性部分Δp。
The relationships between prepressure 、 residual stress and elastic region is discussed. 讨论了预紧压力与残余应力、弹性范围的关系,使压力容器在工作状态下安全使用。
Simulating experimental study of elastic plastic fracture in nozzle region 压力容器接管区弹塑性断裂模拟试验研究
The dynamic stress strain curves are similar to those obtained in the experiments of quasi static compression and can also be divided into the elastic region, yielding region and densification region. 结果表明,动态应力-应变曲线与准静态压缩加载下的应力-应变曲线具有相同的特征,也分为弹性区、平台区和致密区;
The effect of elastic region ratio on precise straightening has been studied. The m ξ β equation is presented, and is used in Automatic Straightening Technical. A new method of precise straightening based on the stroke as controlled object has been put up. 文章通过研究弹区比在精密校直过程中的影响,建立了M-ξ-β方程,并提出了一种以行程参数为控制对象的精密校直方法。
The 2006-2020 land use planning use the conditional construction area for the elastic region, and it will Optimize the land use structure, develop land space, improve land use efficiency, and path a sustainable development road. 2006-2020年土地利用总体规划中,采用有条件建设区为建设用地弹性区域及城乡建设用地增减挂钩等政策优化用地结构,拓展用地空间,提高用地效率,走可持续发展道路。
Simulation results show that the compression load-time curves of the three element models have the same general trend. There are roughly three stages, elastic region, plastic platform region and intensification region. 模拟结果显示,这三种单元模型的压缩载荷-时间曲线大体趋势相同,都有弹性、塑性平台和密集化三个阶段。