The CF crack propagation rate (in platform region) of martensitic GC-4 steel ismuch higher than that of bainitic one.
5%NaCl溶液中的CF裂纹扩展曲线上,都出现了类似于应力腐蚀的平台区,而且马氏体组织GC-4钢的平台区裂纹扩展速度远大于贝氏体组织。
As the isothermal temperature was changed from 190℃ to 300℃, the SCC crack propagation rate (da/dt)_Ⅱ decreased by one order of magnitude.
5％NaCl溶液中,其应力强度因子门槛值K_(ISCC)没有显著差别,但其应力腐蚀裂纹扩展速度相关较大,随等温温度的升高,应力腐蚀裂纹扩展速度大大降低。
according to the theories of dynamic mechanics and fracture mechanics,we work out the rational impact split thickness by fracture criterion and the studing of crack propagation velocity.
根据动力学及断裂力学的有关理论,对煤体断裂准则及裂纹扩展速度进行了研究,确定了合理的冲劈厚
The fastest crack propagation velocity for Mg-3.
结果表明:在高速冲击条件下,单相Mg-L i合金的裂纹扩展主要是减速过程,且随L i含量增加,由于合金组织结构的转变(hcp→bcc),加之合金中A l的添加而沉淀的MgL i2A l与A lL i粒子的作用,致使Mg-L i合金的裂纹扩展速度显著降低。
The dynamic fracture toughness, crack propagation velocity and arrest toughness of materials were simultaneously obtained with this method.
本文利用Hopkinson单压杆实验装置 ,对材料的弹塑性动态断裂特性进行了研究 ,建立了应力波载荷作用下动态裂纹起裂、扩展、止裂全过程的动态分析方法 ,采用该方法可同时测得材料的动态断裂韧性、裂纹扩展速度和止裂韧性。
Research on Creep Crack Growth of Nonlinear Viscoelastic Body;
非线性粘弹性体裂纹扩展速度的研究
Study on Multiaxial Cyclic Stress of Varying Amplitude Fatigue Crack Growth Rate
多轴变幅加载下疲劳裂纹扩展速度的研究
Research on the Crack Growth Rate and Life Prediction of the Cylinder Mix Machine′s Tube Body
烧结混料机筒体的裂纹扩展速度与寿命预测
RESEARCH OF THE FATIGUE CRACK PROPAGATION CHARACTERISTIC ON RAILWAY HOLLOW AXLES
高速客车空心车轴裂纹扩展特性研究
Dynamic Split Tension Strength of Marble and the Properties of Crack Initiation and Crack Propagation under Dynamic Split Tests;
大理岩动态劈裂拉伸强度和裂纹起裂扩展特性
fracture mechanics can be used to determine the conditions in which a rapidly propagating crack can be arrested
断裂力学可用来确定制止裂纹快速扩展的条件。
Sub-critical crack growth length of shear (Mode Ⅱ) fracture of rock
岩石剪切亚临界裂纹扩展长度的研究
EFFECTS OF LOAD PARALLEL TO THE CRACK ON THE FATIGUE CRACK PROPAGATION RATE
平行于裂纹方向的载荷对于疲劳裂纹扩展速率的影响
Grain size had some effect on the rate of crack propagation.
晶粒尺寸大小对裂纹扩展速率也有影响。
Standard test method for fatigue crack growth rates of metallic materials
GB/T6398-1986金属材料疲劳裂纹扩展速率试验方法
The fatigue testing of the heterogeneous plates showed that the mechanical heterogeneity affected the fatigue crack growth rate.
试验表明,力学不均匀性影响疲劳裂纹扩展速率。
Fatigue Crack Growth Rate and Threshold in Tool and Die Steels
工模具钢的疲劳裂纹扩展速率与门坎值
Work on Expanding Rate of Fatigue Crack of Grey Cast Iron Bar Section Produced by Horizontal Continuous Casting
水平连铸灰铸铁型材疲劳裂纹扩展速率的研究
A Study of Fatigue Crack Growth Rate of TC4-DT Titanium Lloy with Damage Tolerance;
损伤容限型TC4-DT钛合金疲劳裂纹扩展速率研究
Research on Relativity of Crack Growths and Magnetic Memory Signal;
裂纹扩展速率与磁记忆信号相关性研究
Study on Fatigue Crack Middle and High Growth Rate of A7N01P-T4 Aluminium Alloy
A7N01P-T4铝合金疲劳裂纹中高速扩展特性研究
Influence of Ⅲ-mode Loading on the Growth Velocity ofⅠ-mode Fatigue Crack
Ⅲ型加载对Ⅰ型疲劳裂纹扩展速率的影响
LOW CYCLE FATIGUE CRACK GROWTH RATE IN H_2S ENVIRONMENTS
硫化氢环境中低周疲劳裂纹扩展速率的研究