1) increment limit method
增量极限法
1.
By using infinitesimal number method and increment limit method,we redefine the osculating place,the osculating circle, tangent,normal,binormal,curvature,the curvature radius,the curvature centre,the curvature radius vector and the natural coordinates of the spacial smooth curve at a certain point.
用无穷小数法和增量极限法重新定义了空间光滑曲线在某点处的密切面、密切圆、切线、法线、副法线、曲率、曲率半径、曲率中心、曲率半径矢量以及自然坐标系 。
2) ultimate stress increment
极限应力增量
1.
Based on the strain distribution calculation of the compression concrete fiber in ultimate state,the concrete strain at the location of the unbonded tendons was integrated to establish an equation group to calculate the ultimate stress increment.
对直线配索无粘结预应力混凝土梁截面应变进行了分析,根据极限状态下截面受压边缘混凝土应变分布形式及无粘结预应力钢束高度处的混凝土应变分析,得出无粘结预应力钢束极限应力增量的积分表达式,编制了计算程序进行求解,并与21片两集中力三分点加载实验梁的实验结果进行了对比,结果较为吻合;不计梁体弹性区段的混凝土应变时,极限应力增量计算值减少7。
2.
Ultimate stress increment is a hotspot problem in theory of unbonded partially prestressed concrete structure,however,according to design critera and the art of the state on this issue around the world,it is still not considered in reason that ultimate stress of unbonded tendons in prestressed concrete multi-span continuous structures varies with load cases.
无粘结筋的极限应力增量一直是无粘结预应力混凝土结构理论中热点问题，而从目前各国的设计依据及研究现状来看，还没有合理考虑多跨连续结构的无粘结筋极限应力随荷载工况变化的情况。
3) increment FEM
增量有限元法
1.
On the basis of analysizing wetting deformation characteristics of core wall type rockfill dam,two traditional calculation methods of wetting deformation are systematically analysized and initial strain increment FEM is proposed and developped in this paper.
在分析心墙坝湿化变形特点的基础上,对湿化变形的两种传统计算方法所存在的缺点和局限性进行了系统探讨,进而提出了湿化变形计算的初应变增量有限元法,并对该方法进行了实例验证。
5) variable limit flow method
可变极限流量法
6) energy method upper-bound limit analysis
极限分析能量法
1.
The EMU(energy method upper-bound limit analysis) method is applied to calculate the safety factor of four typical sections of the slope under different conditions.
应用极限分析能量法EMU程序,计算了4个典型剖面在不同工况下的安全系数。
补充资料：X射线荧光增量法
分子式：
CAS号：
性质：又称标准（溶液）加入法。X射线荧光分析试样中待测元素含量低于5%～10%时所用的一种定方法。其方法与原子发射光谱增量法操作相同，仅所加入待测元素的含量应比试样含量增大1至3倍。以加入量为横坐标，荧光强度为纵坐标绘制校准曲线。
CAS号：
性质：又称标准（溶液）加入法。X射线荧光分析试样中待测元素含量低于5%～10%时所用的一种定方法。其方法与原子发射光谱增量法操作相同，仅所加入待测元素的含量应比试样含量增大1至3倍。以加入量为横坐标，荧光强度为纵坐标绘制校准曲线。
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