强度理论

基于广义双剪应力强度理论，创建了一种新的三维复合型断裂准则——广义双剪断裂准则。

A new criterion of three dimensional mixed mode cracking is developed based on the generalized twin shear strength theory.

以往研究岩石的破坏类型只停留在静载作用下，而其强度理论也多采用静态强度理论。

The failure patterns of rock was formerly only studied on the bases of static loading and the static strength theory was adopted.

在不同强度理论条件下，对压力容器的可靠度进行了研究，得出了一些有益的结论。

The reliability of pressure vessels is studied with different strength theories in this paper. Some useful conclusions are obtained.

从结构破坏的尺寸效应入手，利用纤维束强度理论，得到了材料的宏观统计力学效应。

Based on the size effect of structure fracture and the strength theory of fabric bundles, the macro statistical scaling effect of materials is achieved.

在20世纪，关于材料在复杂应力状态下的强度理论进行了大量的理论研究和实验研究工作。

A considerable amount of theoretical and experimental research on strength theory of materials under complex stress state was done in the 20th Century.

本文对计算结果进行分析，并按第三强度理论进行应力组合及寿命评估。

Calculation result is analyzed in this paper. Composition of stress and estimation of lifetime are done according to the third strength theory.

因此，在岩土工程结构强度分析中，统一强度理论具有较好的应用前景。

So the unified strength theory will be used in the structural analyses in future.

利用第三强度理论，推导出分离机转鼓壁厚计算公式，并根据黄河水的特性计算出转鼓壁厚。

Based on the nature of Yellow River, the data of the drum thickness were figured out by this formula.

作为第四强度理论的近似计算，目前在套管柱强度设计中广泛应用双向应力椭圆理论。

The Bilateral Stress Elliptic(ellipse of plasticity) Theory is widely used in casing strength designing, as an approximate alternative to the four th strength theory.

应力分析方法、材料强度理论、安全指标与设计准则是结构强度设计与计算理论的主要内容。

Stress analysis method, material strength theory, safety index and design criteria are main contents in strength design and computation of structures.

根据模拟的瞬态渗流场与非饱抗剪强度理论，对思铺滑坡的稳定性和最危险滑动面的时空演化进行了分析。

According to the transient simulation of seepage field and non-saturated shear strength theory, the stability of Sipu landslide and the space-time evolution of the critical slip surface were analyzed.

这将有助于土体在强度理论、变形和稳定分析等方面的深入研究。

The discovery would be helpful to a thorough study on the strength theory, deformation and stability analysis in soils.

本文给出了一个适用于表征饱和砂土在往返荷载下强度变化特性的瞬态有效抗剪强度理论。

The transient effective shear-strength theory characterizing the strength change behavior of saturated sand under cyclic loading is presented in this paper.

为探讨岩石的强度理论和中间主应力效应，进行了红砂岩真三轴压力试验。

The true triaxial pressure experiment for red sand rock is conducted for the purpose of investigation into the strength theory of rock and the effect of intermediate main stress.

本文从强度理论和脆断理论两方面对此情况下裂纹传播长度的计算方法进行探讨。

Calculation methods of crack spread length are investigated by means of stress theory and brittle fracture theory.

介绍了稳态强度理论的基本概念、稳态强度的固结不排水剪切试验方法及试验结果；

The steady state strength concepts, the consolidated-undrained triaxial shear test method and the test results are introduced.

重点介绍了强度理论 、 晶间搭桥理论 、 凝固收缩补偿理论和CSC判据 、 HCS判据.

The strength theory, dendritic bridging theory, solidification shrinkage reparing theory and CSC criterion, HCS criterion are stressed.

结合广义非线性强度理论采用变换应力三维化方法简单、合理地使模型实现三维化。

Using transformed stress method, it is easy and reasonable to combine the model with the Generalized Non-linear Strength Theory to make the model describe complex stress states.

利用双剪强度理论，考虑中间主应力影响的特点，导出太沙基地基极限承载力公式。

The formula of Terzaghi ultimate bearing capacity of foundation based on Mohr-Coulomb strength theory does not take the influence of intermediate principal stress into account.

岩土类材料强度理论分为单剪强度理论、三剪强度理论和双剪强度理论。

The strength theories of geotechnical materials can be classified as single shear strength theory, tri-shear strength theory and twin-shear strength theory.

基于俞茂宏统一强度理论，研究了砂土在复杂应力状态下的动强度及其指标确定的新方法。

A new method was proposed to determine the dynamic shear stress and dynamic strength index of soil under the complex stress, based on the Yu Maohong's unified strength theory.

本文从强度理论和脆断理论两方面对此情况下裂纹传播长度的计算方法进行探讨.

Calculation methods of crack spread length are investigated of stress theory and brittle fracture theory.

采用俞茂宏统一强度理论对具有圆孔的大薄板材料进行了极限分析，得到了统一解形式。

In this paper, Yu Maohong's unified Strength Theory is used to analyze the ultimate load of a thin plane with a hole and a unified solution is obtained.

分析和讨论球盘传动的运动学问题，并根据强度理论推导出设计公式，同时给出计算实例。

The kinematic problem of ball disc drive is analyzed and discussed; a design formula is derived from the theory of strength and an example of computation is given.

本文总结了在短期单调荷载作用下混凝土的破坏机理，断裂韧度和强度理论方面的研究成果。

This paper summed up the recent works about failure mechanisms, fracture toughness and failure criteria of concrete which are monotonously loaded in a short-term.

在20世纪，关于材料在复杂应力状态下的强度理论进行了大量的理论研究和实验研究工作。

A considerable amount of theoretical and experimental research on strength theory of materials under complex stress state was done in the 20th Century.

统一强度理论的出现很好地解决了这一问题.

And the advent of the unified strength theory solves this question properly.

本文建议一个适用于岩石的强度理论，通过实例分析，得到一些有意义的结论。

In this paper we suggested a failure theory for rocks. Through the analysis of actual examples we obtained some useful conclusions.

研究表明,统一强度理论能较全面地反映岩石的各种强度特征.

The results show that the unified strength theory can deliberate many aspects of the rock strength.

文章采用第四强度理论来确定最大下泵深度，并在文留油田的应用中取得了较好的效果。

This paper adopts the fourth theory of strength to decide the maximum depth of tubing pump. A better effectiveness is attained through applying the method in Wenliu Oilfield.

从材料的微观力学性质入手，利用纤维束强度理论，得到材料的宏观统计力学效应。

Researching from micro mechanical feature of materials and using the strength theory of fabric bundles, we gain the statistical scaling effect of material in normal scale.

同时根据材料强度理论和动态强化规律推导出材料微观结构参数与冲击速度之间的关系。

Meanwhile, the relationship between the material microscopic structure parameter and the impact speed has been concluded according to the material strength theory and the dynamic strengthened rule.

对于线性荷载作用下外简支环板，引入统一强度理论，进行了极限荷载分析。

For simply supported annular plate under linear load, the limit load analysis was investigated by applying unified strength theory.

以工程中常用的斜对接焊缝的研究为例，说明了力学强度理论的正确应用方法。

This article explained the correct application of the theory of strength through using the commonly used bevelled halving welded seam as an example.

从材料的微观力学性质入手，用纤维束强度理论，得到了材料的宏观统计力学效应。

Based on the micro mechanical feature of materials and the strength theory of fibrous bunchiness, the macro statistical size effect of materials was gained.

研究表明,统一强度理论能较全面地反映岩石的各种强度特征.

The results show that the unified strength theory can deliberate many aspects of the rock strength.

研究表明，不同尺寸岩土体试样强度的实验结果不同，按纤维束强度理论解释较为吻合；

The research indicates that different sizes of specimens result in different values of soil shear strength, and this phenomenon can be well explained using the strength theory of fibrous bunchiness.