1) Cyclic J-integral
循环J积分
1.
The values of cyclic J-integral, ΔJjli calculated from a path inde- pendent integral are.
结果表明:ECT试样具有类似压力容器接管区的高应变分布场;低周疲劳裂纹扩展速率与由线积分定义计算的循环J积分,△J在双对数坐标中呈良好线性相关,且回归的材料参数与相同材质的高周疲劳试验获得的Paris常数基本一致。
2.
Engineering calculating formula on cyclic J-integral ductile crack growth for remaining fatigue lifetime of crack structure was deduced,and so it provides a method calculating the remaining fatigue lifetime for crack structure.
以弹塑性断裂理论为基础,利用EPR I工程方法计算ΔJ,拟合出16Mn钢的疲劳裂纹扩展率公式,并推导出含裂纹结构剩余疲劳寿命评估的循环J积分工程计算公式,为含裂纹结构在塑性应变条件下剩余疲劳寿命评估提供一种计算方法。
3.
The constitutive equation under low-cycle fatigue(LCF) was discussed, and a two-dimensional(2-D) model for simulating fatigue crack extension was put forward in order to propose a new cyclic J-integral.
探讨了低周疲劳加载条件下的应力增量_应变增量关系,提出了模拟裂纹疲劳扩展的二维模型以建立新的循环J积分参量,详细阐述了该积分参量的定义、主要特点、物理意义以及数值计算方法,并通过紧凑拉伸试样的疲劳试验检验该积分参量的有效性。
2) cyclic J integral
循环J积分
3) cyclic J integral Δ J * path
循环J积分ΑJ_(path)~＊
4) cyclic integral
循环积分
1.
The result shows that the Birkhoffian system has generalized energy integrals and cyclic integrals.
结果显示 :Birkhoff系统存在广义能量积分和循环积分 ,每个积分可使Birkhoff系统降两
2.
Routh and Chaplygin equations for variable mass nonlinear nonholonomic system in noninertial reference frame are extended,and the cyclic integral and its condition of existence for the system are given.
建立了变质量非线性非完整系统相对于非惯性系的广义Routh方程和广义方程，给出了其循环积分存在的条件，并利用循环积分将这类系统的Routh方程和方程降阶，得到更广泛一类的广义Routh方程和型广义Routh方程。
3.
In this paper, the D Alembert-Lagrange principle and the generalized chaplygin s equation for variable mass weakly nonholonomio systems moving relative to noninertial reference frame are established at first, and then the generalized energy integral and the generalized cyclic integral of the dynamical equations in the case of one-order approximation for the systems above are studied and presented.
本文首先建立了变质量弱非完整系统相对于非惯性系运动的Ｄ，Ａｌｅｍｂｅｒｔ－Ｌａｇｒａｎｇｅ原理和广义型方程，然后，研究并给出了变质量弱非完整系统相对于非惯性系运动的动力学方程在一阶近似情况下的广义循环积分和广义能量积分。
6) cyclic integrator
循环积分器
补充资料：循环系统的进化鱼的循环系统
李瑞端绘
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说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条