介绍了一种自行设计的夏比冲击试验V形缺口试样送样卡具。
This article introduced a kind of self-designed V shape sample clamp for Sharpy impact test machine.
不同尺寸和宽度的缺口试样的解理断裂主要由正应力判据控制。
The cleavage fracture of the notched specimens with various sizes and widths is mainly controlled by the criterion of normal stress.
缺口试样在缺口的高应力集中效应下，加快疲劳裂纹形核过程。
The high stress concentration effect of notch can accelerate the process of fatigue crack nucleation in the notch specimen.
为此，文中设计了一种新颖的缺口试样，再现裂纹尖端的真实状态。
This article introduced a kind of self-designed V shape sample clamp for Sharpy impact test machine.
结果表明：V型缺口试样的裂纹扩展功能较好地反映材料的缺口敏感性。
The results show that the crack propagation work of V-notched specimen can well reflect the notch sensitivity of the tested steels.
采用复型方法对中碳结构钢单边钝缺口试样的非穿透和穿透疲劳短裂纹的演化过程进行了研究。
The transformation behavior of vanadium middle carbon steel during continuous cooling was investigated by means of THERMECMASTOR-Z thermomechanical simulator.
采用SEM对缺口试样疲劳裂纹形成与扩展特征进行了初步分析，发现裂纹最先在缺口尖端表面形成。
The initiation and propagation of fatigue cracks at the notch roots were also observed by using SEM method. It was indicated that the crack firstly initiated from the surface of notch tip.
在缺口试样中，解理断裂的临界事件是铁素体晶粒尺寸的裂纹扩展进入基体，不随试样尺寸和宽度变化。
The critical event for cleavage fracture in notched specimens is the propagation of a ferrite grain-sized crack into the matrix, and is independent of specimen sizes and widths.
艾氏冲击试验：用规定高度的摆锤对处于悬臂梁状态的缺口试样进行一次性打击，测量试样折断时冲击吸收功的试验。
The impact test of the pendulum is used to strike the notched specimens of the cantilever beam with a prescribed height, and the test of impact absorbing power when the specimen is broken.
塑性拘束较大的直缺口试样(i)的整体屈服载荷及缺口前的应力、应变和应变率比塑性拘束较小的V缺口试样(V)大。
The general yield load, stress and strain rate ahead of notches of I specimens with larger plastic constraint is larger than that of V specimens with small plastic constraint.
选用水面舰艇用945钢和潜艇用921a钢，研究了不同焊缝外形尺寸对爆炸试验中三缺口试样的中央缺口开裂行为的影响。
Using 945 steel and 921a steel, this article studies the effect of weld profile and size on the cracking behavior of a central notch in a three-notch specimen for an explosion bulge test.
夏比(V型缺口)冲击试验：用规定高度的摆锤对处于简支梁状态的V型缺口试样进行一次性打击，测量试样折断时冲击吸收功的试验。
Charpy impact test (V gap) : the specified height of pendulum of the one-time blow to V notched specimens in beam state, test specimen is broken by the impact absorbing energy.
并结合有限元计算所得的不同预应变条件下的缺口前端的应力应变场分布，主要分析了预应变对不同组织低合金高强钢缺口试样断裂行为的影响。
The fracture behavior at crack tip within CMn steel is analyzed based on the experiments of 3 PB precracked specimens and FEM calculation and simulation.
当裂尖出现纤维裂纹后，韧脆转变机理是：由二相粒子决定的解理断裂应力转变成由晶粒尺寸决定的解理断裂应力。同缺口试样具有相同的临界事件。
The mechanism of ductile-brittle transition was considered as the result of the transition of stress as determined by the second phase particle to that as determined by the ferrite grain.
通过不同温度条件下不同厚度、不同缺口取向含V形缺口试样进行3点弯曲试验研究，发现X70管线钢具有严重的各向异性现象，其在平行钢板表面方向和沿钢板厚度方向力学性能差异较大。
The effects of thickness and notch orientation on the toughness of X70 pipeline steel samples with V notch were investigated experimentally by use of the 3-point bending test at different temperature.
通过不同温度条件下不同厚度、不同缺口取向含V形缺口试样进行3点弯曲试验研究，发现X70管线钢具有严重的各向异性现象，其在平行钢板表面方向和沿钢板厚度方向力学性能差异较大。
The effects of thickness and notch orientation on the toughness of X70 pipeline steel samples with V notch were investigated experimentally by use of the 3-point bending test at different temperature.
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