切线理论

本文论述了断裂力学中的切线模量理论的基本框架，提出了求解非线性断裂临界应力的新方法&切线模量因子算法，并对该方法同现有的COD法作了理论上和计算上的比较。

The basic frame of the theory of tangent modulus in fracture mechanics is builded , and the new method of tangent modulus factor to calculate nonlinear critical fracture stress is presented .

切线模量理论计算混凝土圆柱稳定性的探讨

Exploration on stability calculation of concrete cylinder with tangent modulus theory

用切线模量理论对轴心受压柱曲线进行了分析，并同中、长柱试验结果做了比较。

Axially loaded column curves have been analysed by the tangent modulus theory .

裂纹扩展的简明机理和断裂力学中的切线模量理论

Concise Principle of Crack Propagation and the Theory of Tangent Modulus in Fracture Mechanics

用切线模量理论建立受压混凝土圆柱稳定计算方法。

In terms of tangent modulus theory , the method of theoretical calculation is established .

并用切线模量理论推导出计算钢管煤矸石混凝土轴压中长柱非弹性屈曲荷载的计算公式；

Inelastic yield load formula of axial compression middle long columns was deduced through the use of tangent modulus theory .

在后屈曲变形的早期阶段无应变率逆转发生，切线模量理论适用于该阶段弯曲变形的计算。

No strain rate reversal occurs at the early stage of post-buckling . Thus , the tangent-modulus theory is valid for the calculation of bending deformation at this stage .

钢骨-方钢管混凝土柱是一种组合柱设计模式，采用切线模量理论对该组合柱轴向受压稳定承载力进行分析。

Square steel tube column filled with steel-reinforced concrete is a new design model of steel-concrete composite columns . Tangent modulus theory was introduced to determine the stability capacity of this new type of composite columns subjected to axial load .

首先建立了成形轨迹曲线特性参数的数学模型及实际加工系统的以Go点为转动中心的切线法成形理论数学模型。

Therefore the axisymmetric high order aspheric optical part processing efficiency is greatly improved . Firstly , the mathematical model of the forming path curve characteristic parameters and the tangent method forming theory mathematical model of the turning around point Go to processing in the actual processing system were established .

基于切线轮廓误差坐标理论，提出了优化切线轮廓误差估算方法，创建了自由曲线优化轮廓误差模型，分析了CNC多轴空间轮廓误差，为减小轮廓误差提供了理论依据。

Based on tangent contour error coordinate theory , the estimation method of tangent contour error is raised , the model of free curve optimization contour error is created , the spatial contour error of multi-axis CNC is analyzed .

为解决工程实际中的曲面展开问题，以微分几何学中可展面展开的基本原则等相关理论为基础，提出锥面和切线曲面展开的理论方法。

This paper discusses the method of development for developable surface in order to solve the development problem in engineering .

根据切线模量的这种功能，将这种利用材料衍生比例定律构建非线性理论的原理和方法称为广义切线模量理论。

In term of the function of tangent modulus , we call the principle and method generalized tangent modulus theory .