1) single axial isobole

单轴等效线法
1.
In the study isobole had been improved, and single axial isobole and the calculating method of synergic times had been advanced.
为正确评价单子叶杂草防除剂与双子叶杂草防除剂的相互作用,以精喹禾灵与灭草松混用为实例对等效线法进行了改进,提出单轴等效线法及其增效倍数的计算方法。
2) equivalent uniaxial tangent modulus

等效单轴切线模量
1.
The Ottosen criterion is adopted to determine the peak values of strain and stress,and equivalent uniaxial tangent modulus is applied to the 3D nouliner incremental relationship.
该模型视混凝土为各向同性材料,通过在三维增量非线性关系中引入等效单轴切线模量,利用 Sargin 的单轴应力-应变关系确定混凝土的非线性计算的单元刚度矩阵,采用了目前较为成熟的 Ottosen 的破坏准则。
3) equivalent axis coil

等效轴线圈
4) isoboles

等效线法
5) equivalent uniaxial strain

等效单轴应变
1.
The incremental orthotropic model based on equivalent uniaxial strain and the constitutive relation under cyclic loading in consideration of the effect of cracked section for modeling of concrete were used.
混凝土采用等效单轴应变的增量式正交异性分析模型,考虑裂面效应的反复加载本构关系并做了适当的修改。
2.
Based on the minimization of difference between calculated and test results, the equivalent uniaxial strain corresponding to strength under pressures in two directions is calculated and its regression equations are given.
以应力 应变曲线试验值与计算值的误差达到最小为目标 ,反演出双向受压时相应于强度值的等效单轴应变值 ,并回归得到其计算公式 ;同时对一拉一压、双向受拉及一向开裂、双向开裂等受力状况提出了εic的计算方法 ;经对现有强度理论的分析比较 ,选择了适合平面应变状态的强度准则 ,从而得到了平面应变状态混凝土等效单轴应变本构模型 。
3.
The shortcoming of existing equations for calculating ε ic which is equivalent uniaxial strain corresponding to maximum compressive stress in equivalent uniaxial strain stress relation of concrete are discussed in the paper.
本文讨论了混凝土等效单轴应变本构模型中,相应于最大应力的等效单轴应变εic计算公式的不足,并根据现有的试验资料,以应力应变曲线的实验值和计算值的误差达到最小为目标,反演得到εic值,回归出新的εic计算公式,算例表明新的计算公式能得出更满意的结果。
6) the equivalent uniaxial strain

等效单轴应变
1.
According to the concept of the equivalent uniaxial strain propounded by Darwin and Pecknold, on the base of the 3D axial symmetric orthotropic hypoelastic model of Elwi and Murry, a 3D orthotropic model of hypoelasticity is proposed for concrete.
根据Darwin和Pecknold提出的“等效单轴应变”概念 ,在Elwi和Murry混凝土三维轴对称模型的基础上 ,建立了混凝土三维正交异性次弹性本构模型 。
2.
According to the concept of the equivalent uniaxial strain propounded by Darwin and Pecknold, two amendments are made to the 3-D axial-symmetric anisotropic hypoelastic model of Elwi and Pecknold: 1.
根据Darwin和Pecknold提出的“等效单轴应变”的概念,对Elwi和Murry三维轴对称正交异性次弹性模型进行了两点改进:1。
补充资料:单轴破坏包线
分子式:
CAS号:
性质:由断裂应变的对数值(横坐标)与经温度折算的单轴破坏应力的对数值(纵坐标)所构成的一种表征黏弹材料简单破坏特性的曲线称为单轴破坏包线。降低温度或增大应变速率时,破坏性能沿破坏包线的反时针方向移动。在用于固体推进剂时,常用最大应力时的应变代替断裂应变构成破坏包线。
CAS号:
性质:由断裂应变的对数值(横坐标)与经温度折算的单轴破坏应力的对数值(纵坐标)所构成的一种表征黏弹材料简单破坏特性的曲线称为单轴破坏包线。降低温度或增大应变速率时,破坏性能沿破坏包线的反时针方向移动。在用于固体推进剂时,常用最大应力时的应变代替断裂应变构成破坏包线。
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参考词条