断裂应力

幂硬化材料解理断裂应力σf的测定

Measurement of cleavage fracture stress in power hardening material

缺口根半径对解理断裂应力σf的影响

The Effect of Notch Root Radius on the Cleavage Fracture Stress σ _f

裂纹试样尺寸对局部解理断裂应力σf的影响

Influence of precracked specimen dimensions on stress σ _f of local cleavage fracture

铁素体形态对解理断裂应力σf及断裂韧性的影响

Influence of morphology of ferrite on cleavage fracture stress σ _f and fracture toughness

高强铝合金Mg偏析对晶界结合力和断裂应力的影响

Effect of Mg Segregation on Grain Boundary Binding Force and Fracture Stress in High-Strength Aluminium Alloy

用缺口棒四点弯曲法测定了双相钢的解理断裂应力σf；

Cleavage fracture stress of dual phase steels has been measured with slow-bend test of blunt V-notch specimens .

测定了各种硅钢的解理断裂应力，导出了硅钢零塑性温度NDT的表达式。

The cleavage fracture stress of silicon steel is determined .

冷却时间、扩散氢含量和预热温度对临界断裂应力（σcr）imp均有影响。

And diffusion hydrogen , cooling time and preheating temperature all influence the critical fracture stress (σ cr ) imp.

通过测量解理起裂源的位置，精确测定了一种钢的细观解理断裂应力σf和宏观解理断裂应力σF。

By measuring the location of the cleavage initiation sites , the local cleavage fracture stress σ f and the macroscopic cleavage stress σ F are accurately measured .

并基于S（co）&解理特征应力物理模型，对低碳钢低温解理断裂应力进行了计算。

On the basis of above results and a physical model of the characteristic cleavage stress S ( co ), the cleavage stresses of low-carbon steel specimens at different temperatures were calculated .

C-Mn钢焊接接头的解理断裂应力的研究

Study on cleavage fracture stress of C-Mn steel welding joint

根据σf与开裂单元的测定结果，并考虑到微裂纹的形状对解理断裂应力的影响，计算了双相钢的有效表面能。

According to the measurements of the cleavage fracture stress and the crack unit , the effective surface energy of the dual phase steels was also calculated by Griffith 's equation .

随着PLGA纺丝液质量分数的增大，纤维膜的拉伸断裂应力和应变均逐渐增大。

The tensile stress and strain of the PLGA fiber membranes have been improved gradually with the solution concentration of PLGA increased .

一般，解理断裂应力σf~的测定是借助于Griffiths-Owen对软钢材料V形缺口四点弯曲试样缺口顶端的应力&应变场有限元分析结果。

In general , measurement of cleavage fracture stress σ _f ~ is performed by means of the Griffiths-Owen'a finite element solution of stress-strain field ahead of notches in v-notched four-point bend specimen made of mild steel .

La的加入可使合金热裂纹形成温度下降，使临界断裂应力增加，且峰值右移。

The addition of La can also decrease the hot tearing forming temperature and increase the critical fracture stress , moving the peak of critical fracture stress to a greater value of deformation Speed .

试验还发现，屈服载荷与最大载荷相等的温度为材料的韧脆转变温度，该温度受控于材料的解理断裂应力σf，在此温度下有解理断裂发生。

It is also indicated that the temperature at which dynamic yield load equals maximum load is the temperature of ductile to brittle fracture transition , which is controlled by the cleavage fracture stress σ f. The cleavage fracture can occur below this temperature .

涂碳工艺稳定可靠，光纤静态疲劳参数n＞100，平均断裂应力＞60N，能够满足苛刻环境对光纤长期可靠性的要求。

The carbon-coated technology is stable and reliable , fibers n value larger than 100 , the average breakage stress larger than 60 N. It can satisfy the requirments of long-term reliability in harsh-term .

宏观解理断裂应力σF是试样断裂时缺口前的最大正应力σyymax，其测定值主要由细观的σf决定，也不随加载速率、缺口尺寸和加载方式变化。

The macroscopic cleavage fracture stress F is the maximum normal stress ahead of a notch when the specimen is fractured , its measured value is determined by the local cleavage fracture stress of , and it is also independent on notch sizes , loading rate and loading methods .

在恒定的变形速率下3D-C／SiC的拉伸断裂应力在低于制造温度下随温度上升而上升，在接近制造温度1100℃附近达到最大值，然后随温度升高而降低；

The main research findings are as follows : At the same displacement velocity 3D-C / SiC tensile fracture stress increases with testing temperature increasing , when temperature reach material producing temperature 1100 ℃ the fracture stress reach maximum , then it decreases with the temperature increasing .

动静态界面断裂应力强度因子间的普适关系

Universal relations between stress intensity factors of dynamic and static interfacial fracture

断裂应力分散性较大，与加载速率没有明显的关系；

Fracture stresses have no relationship with the loading rate ;

韧带全面屈服之后的裂纹顶端断裂应力

Crack - tip fracture stress under general yielding of ligament

试样尺寸对钢的细观解理断裂应力的影响

Effects of specimen sizes on the local cleavage fracture stress of steel

缺口夹角对细观解理断裂应力的影响

Effects of notch opening angle on local cleavage fracture stress

断裂应力场模拟分析与应用

Simulation analysis and application of the faults stress field

蠕变断裂应力强度因子及其应用

Stress intensity factors for creep fracture and their application

钢解理断裂应力的测量和物理意义

On the measurement and physical meaning of the cleavage fracture stress in steel

低碳钢低温解理断裂应力计算

Calculation of Cleavage Fracture Stress in Low-Carbon Steel

深厚粘土层冻结管断裂应力及位置的研究

The Research of the Deep Glue the Soil Layer Congelation Tube Split should Dint and Position

细观解理断裂应力主要由临界裂纹的长度决定。

The local cleavage fracture stress is mainly determined by the length of the critical microcrack .