Initial fracture property of marble and sandstone subjected to compressive loading is revealed primarily.
初步揭示了压缩状态下大理岩和砂岩的初始断裂特性。
Rock has heterogeneity and discontinuity and rock's dynamic fracture property has been one of the hotspots and challenges in domestic and foreign studies.
岩石具有非均质性、不连续性,其动态断裂性能研究是国内、外研究的热点难点问题之一。
The effect of AP/HTPB Composite propellant thermal decomposition characteristics on initial change rate of fracture property during aging has been studied in this paper.
研究了AP/HTPB复合固体推进剂热分解性能对贮存老化期间增长断裂能初始变化率的影响。
The contact damage and fracture property of silicon single crystal are investigated at room temperature by indentation, as well as the influence of the intended and unintended impurities.
室温下使用维氏硬度计研究了硅单晶表面的接触损伤及硅单晶中杂质对表面损伤的影响。
The experimental results show that foe values of strain intensity factor and strain fracture toughness are more stable and useful or determining the thermal fracture property of the concrete.
实验表明,作者提出的应变强度因子及应变断裂韧性的概念对反映混凝土材料的断裂特性更稳定更具实际意义。
Conclusion: For treatment of the cancellous bone fracture, a combination of restoration of the anatomic location plus strong fixation is necessary on the restoration of the biomechanical property.
结论:对关节松质骨骨折的治疗应尽可能做到解剖复位和坚强固定,以利于松质骨的生物力学性能的恢复。
The cracking causes of the die casting mould of SKD61 steel were analyzed by chemical composition analysis, mechanical property testing, microstructure examination and fracture analysis.
通过化学成分分析、力学性能测试、金相检验以及断口分析等方法对SKD61钢压铸模具开裂原因进行分析。
This paper predicted the forming limit of sheet metals by using the mechanical property parameters of materials and combining the ductile fracture criteria with finite element simulation.
本文提出利用材料的力学性能参数,采用数值模拟与韧性断裂准则相结合的方法预测板材的成形极限。
Chemical composition analysis, mechanical property test and microstructure examination were used to analyze the early fracture of power plant's turbine main oil pump shaft.
采用化学分析、力学性能测试和金相检验等手段,对某电站汽轮机主油泵轴的早期断裂进行了分析。
The property of viscoelastic interface fracture and the calculating method of fracture parameter are investigated.
研究了粘弹性界面断裂的性质和断裂参量的计算方法。
The results showed that multiple solution and aging treatment had a significant effect on increasing plastic property and fracture toughness, although had little effect on strength.
结果表明:多重固溶时效热处理可以显著提高合金的塑性和断裂韧度,而对强度的影响不大。
It means that diamond coated wire may reduce wire fracture strain and improve its mechanical property.
这表明了金刚石涂层可以减少钨丝的断裂应力,提高其机械性能。
Since natural fracture surfaces in rocks rarely display self-similar property, the estimated fractal dimension of surface roughness surffers from the scale effect.
然而,岩石断裂表面粗糙度一般不具有自相似分形性质。
It is found from site investigation that the geological fracture is of rough and irregular character. This property can be described by using fractal geometry.
通过现场勘察发现,地质断裂面的几何形态表现为粗糙起伏的不规则性质,这种性质可以用分形几何学描述。
The pixel-covering method is used to research the fractal character of stress corrosion fracture so as to fit the property of gray images.
分形图像的原始图像一般为灰度图像,针对灰度图像的特点,采用像素点覆盖法,研究了应力腐蚀断口形貌的分形特征。
This article establish the mechanics model of pendent axis of tube style centrifugal machine, analysis and calculate the fatigue and fracture safety property of pendent axis.
在管式离心机受力分析的基础上,建立了管式离心机吊轴的力学计算模型,并对吊轴的弯扭组合下的疲劳与断裂安全性作了分析计算。
The mechanical property and drillability of rocks are the basic quality available for analyzing and evaluating the anti fracture and drilling resistance of rocks.
岩石力学性质和可钻性是分析和评价岩石抵抗破碎和钻进的基本性质,也是合理选择碎岩工具和工艺的基础。
The equiaxed structure has good tensile property, low fracture toughness and high fatigue crack propagation rate.
等轴组织具有较好的拉伸性能、低的断裂韧性和高的疲劳裂纹扩展速率;
The mechanical property of N80 steel has increased obviously after adding corrosion inhibitor, where the ductility of N80 steel increased, and crack fissure of fracture surface decrease.
添加缓蚀剂后使N80试样的韧性有明显的增加,断口裂纹缝隙明显减小,力学性能有了明显的提高。
Utilization of conventional seismic data cube, coherence cube, fracture cube, the technique of amplitude property predicts the distribution of high quality reservoir.
综合利用常规地震数据体、相干体、裂缝体、振幅属性技术预测优质储层分布。
The cause has been analyzed which makes a difference of anti - destroying property and fracture surface feature of chrome clad.
对两种状态铬层的破坏抗力差异和端面形貌特征的形成原因进行了分析。
Other advantages of it are good rheological property, strong fracture making ability and sand carrying capacity, and little damage to formation, etc.
该压裂液配制简单,不需要杀菌剂和破胶剂,具有流变性能好、造缝与携砂能力强、对地层伤害小、使用方便等优点。
The interior elements include loess property, loess joint fracture, and stratum structure.
内因主要包括黄土的土性、黄土节理裂隙、黄土地层的结构等因素。
The impact test and SEM fracture analysis were carried on for AZ80 magnesium alloy after different temperature ageing, and the effects of ageing on impact property were investigated.
采用冲击试验和断口形貌分析对经不同温度时效处理后的AZ80镁合金冲击性能进行了分析。
The mechanical property and processing property of soft PVC/ABS alloy were tested, the fracture surface structure of the sample and compatibility of the two phases were characterized.
前言:对软质聚氯乙烯( PVC)/ 丙烯腈-丁二烯-苯乙烯共聚物(ABS)合金的力学性能、加工性能进行了测试,并利用差示扫描量热仪和扫描电镜对试样断面结构以及两相的相容性进行了表征。
Field using verified that the fluid possesses good gel breaking property, the operating friction value is low, the proppant carrying ability is strong and fracture length is in control.
现场实验表明,清洁压裂液具有破胶性能,施工摩阻低,携砂能力强,可有效地控制缝高。
This paper introduces the fracture identification method utilizing engineering parameter of comprehensive mud logging, Among them, the DCS index reflects the drillability and unconsolidated property.
本文介绍了利用综合录井中的工程参数识别裂缝的方法,其中优选出反映地层可钻性的DCS指数,根据DCS指数对地层可钻性及疏松程度的反映来识别储集层裂缝。
Mechanical properties of the steels along with fracture behaviour, fatigue property and machinability are presented in comparison with those of quenched and tempered steels.
文中比较了非调质钢与调质钢在上述性能方面的差异。
Mechanical properties of the steels along with fracture behaviour, fatigue property and machinability are presented in comparison with those of quenched and tempered steels.
文中比较了非调质钢与调质钢在上述性能方面的差异。
应用推荐