How to describe the brittle failure process for geomaterials is a challenging problem.
对岩土材料的脆性破坏过程进行正确描述是很困难的。
When all the gold does not dissolve in the solder brittle failure occurs near the goldsolder interface .
当所有的金不能完全溶解在焊钩中时,就会在金与钩的界面附近发生脆性破坏。
Research results show that the failure styles of two kinds of cement-soil under dynamic load are brittle failures.
结果表明:在动应力作用下,两种改良土的破坏均为脆性破坏;
The dramatic brittle failure of marble may happen more frequently if the circumferential strain approaches or exceeds the axial strain.
当环向应变接近或超过轴向应变时,大理岩发生剧烈脆性破坏的可能性将明显提高。
The study has shown that: the coal shows much less brittle failure because the grout in it can continue the deformation of the coal sample;
研究结果表明:浆液的存在延续了煤样的变形,减少了煤样试件的脆性破坏;
Short columns can induced brittle failure, strengthen it with additional stirrups, which shearing capacity can meet the seismic requirements.
短柱引发结构脆性破坏,采用加箍筋办法对其加强,其抗剪承载力可满足抗震要求。
On the basis of these field and experimental results he suggests the creep dilatancy theory (1981, 1983) and the simplified brittle failure theory.
在这些现场和实验室研究结果的基础上,作者提出了蠕变扩容理论(1981 ~ 1983)和简化的脆性破坏理论。
The experimental results show that disheveled catastrophic brittle failure is observed for the [0]16 specimens tested at quasi-static strain rates.
实验结果表明:[0]16层板破坏时表现出典型的不规则脆性破坏,纤维的损伤具有初始门槛值,而纤维的强化存在应变率门槛效应。
No matter what the shape of cutting tools is, failure procedures are simply divided into three stages: brittle failure, plastic failure, and fracture.
不论刀具形状如何,破坏过程大体分为三个阶段:脆性破坏阶段、塑性破坏阶段、断裂破坏阶段。
When the failure taking place, the strength of steel plates has not been fully used, it belongs to brittle failure and must be overcome with reasonably measure.
破坏发生时,钢板的受拉强度未得到充分利用,属脆性破坏,必须采取合理的锚固措施予以克服。
The following conclusions are obtained: There are sensible elastic deformation and brittle failure feature in the oilwell cement under monopodium stress conditions.
结果表明,单轴应力条件下水泥石具有明显的弹性变形及脆性破坏特征;
Combining with the cohesive crack model, the behavior of structure in the range from ductile to brittle instability and the factors influencing the brittle failure are studied.
结合粘结裂纹模型,研究了结构从延性到脆性失稳的特性以及引起脆性破坏的影响因素。
As for steel Bridges, the diseases can be classified into different kinds, which the important ones are fatigue and brittle failure, corrosion, buckling and mechanical failure.
对于钢桥,按照破坏形式对各类病害进行分类,主要有疲劳和脆性断裂、腐蚀、失稳以及机械损伤。
At the same time, how to establish the failure criterion of brittle materials in biaxial stress state is one of people's goal.
与此同时,如何建立脆性材料在双轴应力作用下的破坏准则一直是人们所追求的目标之一。
The results show that brittle fracture occurs in matrix and the P-WCMOD(crack mouth opening displacement) curve is linear till loading to failure.
实验结果表明:水泥基体发生脆性断裂,从加载到试件破坏P-WCMOD曲线一直呈线性;
According to capacity design philosophy, brittle shear failure inside ductile members must be inhibited, to insure adequate rotation capacity of the plastic hinge.
按照能力设计思想,必须防止延性构件内部发生脆性剪切破坏,以确保塑性铰的转动能力。
The present method is suitable to analyze the first-passage failure of brittle structures due to its simple calculation and accurate result.
提出的新方法计算简单,结果精确,适于进行脆性结构的首次穿越破坏分析。
Proved by the test data, the precision of constitutive model with brittle, ductile failure is higher, which can provide accurately the basis for rock damage assessment.
经实测数据与所建模型对比验证,延性破坏、脆性破坏模式本构模型精度较高,可为岩石损伤评估提供依据。
With the decreasing of heterogeneity , the main failure process presents brittle behavior , and vice versa , with the increasing of heterogeneity , failure process presents ductile behavior.
随著非均匀程度的降低,主破裂呈现脆断模式,而随著非均匀程度的增加而呈现韧性破坏特征。
The results show that hot-forged cast dies take thermal wear, plastic deformation, thermal fatigue, impact fatigue fracture and brittle fracture as predominant failure patterns.
结果表明,精铸热锻模的主要失效形式为热磨损、塑性变形、热疲劳裂纹、冲击疲劳破断和脆性断裂。
It is a brittle material and heterogeneous discontinuous body. The process of its failure is one of initiation of inner cracks of the rock followed by their propagation, connection and link up.
它是一种非均质不连续体的脆性材料,其破坏过程是在水力或机械作用下,岩石内部裂纹的产生、扩展、合并和贯通的过程。
Especially the deeply embedded caverns under high in situ stresses, they are more readily to appear longitudinal splitting cracks and even intense brittle deformation failure, like rock blast etc.
尤其对于处于大埋深、高地应力的脆性围岩中的地下洞室,开挖时更容易发生这种破坏。
The failure of the driving shaft in a hoister is caused by typical brittle fracture under low stress.
卷扬机传动轴的断裂为典型的低应力脆断事故,主要原因是传动轴的组织疏松、晶粒粗大、。
It is recognized that the scaling failure of nodular iron composite rolls in hot rolling is a problem of fatigue brittle fracture.
论述了热轧过程中球墨铸铁复合轧辊的掉皮破损属于疲劳脆性断裂的原因。
The paper analyzed the critical failure action and brittle rock with a penetration and reestablishment group theory. The critical failure rate of the rock was obtained.
利用逾渗和重整化群理论初步分析了脆性岩石的临界损伤破坏行为,指示性地得出了岩石的临界破坏概率。
Qualitative explanations for different compressional kink are band failure modes associated with brittle and ductile fibre reinforcements are given by means of the present theory.
借助该理论公式,可分别对由脆性和由韧性纤维增强的压缩折带破坏模式作出定性解释。
For any brittle materials, the larger the inhomogeneous coefficient is, the larger the possibility of failure in low stress level is.
非均质系数越大,材料发生低应力状态破坏的可能性越大。
The failure mechanism and mechanical property of a brittle composite matrix, reinforced with short fibers under the uniaxial tensile load, have been studied.
研究短纤维增强脆性基复合材料在单轴拉伸荷载下的力学性能和破裂机理。
The drill pipe failure assessment demonstrates the longitudinal brittle fracture will be avoided when the transverse impact power of the material is over 80J.
应用钻杆失效评估技术研究表明,横向材料冲击功大于80J将避免钻杆内螺纹接头纵向脆性开裂失效。
The drill pipe failure assessment demonstrates the longitudinal brittle fracture will be avoided when the transverse impact power of the material is over 80J.
应用钻杆失效评估技术研究表明,横向材料冲击功大于80J将避免钻杆内螺纹接头纵向脆性开裂失效。
应用推荐