Numerical simulation of brittle fracture at V-shaped notches under mixed mode loading;
I-II复合型V型切口脆性断裂的数值模拟
Maximum circumferential stress criterion of brittle fracture at the interface edge of bonded materials;
结合材料界面端脆性断裂的最大周向应力准则
The brittle failure of the foundation bolt for ladle turntable under the static load and low stress happens due to unsuitable between intensity and toughness in this high strength steel.
介绍了钢包回转台地脚螺栓在低应力状态下发生脆性断裂的实例。
It has supplied advantageous scitific evidence to the anchor - chain's brittle failure at low temperature.
为锚链钢的低温脆性断裂提供了有利的科学依据。
This paper analyses the reason that brittle failure is occurred and the factor that can influence brittle failure.
分析了钢结构发生脆性断裂的原因、影响结构脆性破坏的因素,提出了预防脆性破坏的措施。
Study on brittleness fracture resulted from silicon-rich region in 4Cr9Si2 steel;
4Cr9Si2钢中富硅区引起的脆性断裂研究
The results indicated that head bolt was occurred brittleness fracture to lead to the failure of engine cylinder gasket due to the hardened surface layer and bad appearance quality of the cylinder head bolt.
分析了断裂缸盖螺栓的化学成分、金相组织、宏观及微观断口形貌,以及力学性能和螺栓装配受力情况,分析结果表明,由于缸盖螺栓表面存在硬化层而且外观质量不佳,螺栓发生脆性断裂,造成了发动机冲缸垫故障,并提出了改进措施。
The results showed that the main reason was that the content of C and Si exceeded standard,the content of Mn exceeded standard consumedly,large amounts of bainite and less ferrite were produced,and the hardness was a times more than the normal hardness,led to the property of 36U profile steel was abnormal and the brittleness fracture happened in bending process.
结果显示:碳和硅含量超标,锰含量严重超标,使组织中出现较多贝氏体,且铁素体含量降低,同时其硬度比正常型钢的硬度高近一倍,最终导致其性能异常,发生弯曲脆性断裂。
A case of application using apatite fission track to restrict the time of brittle fault movement;
利用磷灰石裂变径迹约束脆性断裂活动的时限
The earlier ductile shear zone controlled the distribution of the quartz veins, and the late brittle fault controlled the orebody directly.
早期韧性剪切带只对矿脉起宏观控制作用,晚期的脆性断裂为含金石英脉的直接控矿构造。
Jin-Chang-Yu gold occurred in the course of the formation of brittle-ductile shear zone(B-DSZ) and the brittle fault(BF)in Mesozoic era.
金厂峪金矿是中生代脆一韧性变形带和脆性断裂形成过程中产生的，严格受北北东向脆一韧性剪切带和脆性断裂控制，在两个阶段矿化叠加部位，金矿进一步富集，构成金厂峪型金矿。
Concerning on the modeling of the quasi-brittle fracture process at interface cracks of quasi-brittle materials,a comparative analysis was performed based on some typical constitutive models of interface cracks.
以混凝土界面断裂分析为目的,选取若干典型的层间界面准脆性断裂的本构模型进行分析和数值模拟对比研究。
Crazing is the invariable precursor of brittle fracture.
出现小裂纹必然是脆性断裂的前兆。
The fracture is brittle fracture, and the reason is that material of forming dies takes place the temper brittleness.
引起脆性断裂的原因是成型模产生了回火脆性。
Analysis on Brittle Fracture of 20Mn2 Steel Ring Chains
20Mn2钢圆环链脆性断裂原因分析
Brittle fracture destroy analysis of the frame joint in earthquake
框架节点在地震中的脆性断裂破坏分析
On reasons for brittle fracture in joint of beam-column of steel frame and new joint form
钢框架梁柱节点脆性断裂原因及新型节点形式
Except for a small length of web at the first fracture location, none of the cracks exhibited a brittle fracture mode of crack propagation.
除第一个断裂位置的一小段腹板外，没有一条裂纹显示出裂纹扩展的脆性断裂模式。
The fault is of brittle type in the shallow tectonic level of the earth's crust. The main deformational mechanism is cataclasis.
该断裂为地壳浅部构造层次的脆性断裂,主要的变形机制是碎裂作用。
Brittle fracture sensitivity analysis on thick-walled metal parts of (ultra) super critical unit
超(超)临界机组厚壁金属部件脆性断裂敏感性分析
The bracket of as-cast ferritic nodular iron breaks due to brittle fracture when it is assembled.
铁素体球铁铸件支架在装配时发生脆性断裂失效。
Research for Mechanism of Brittle Fracture of Structural Steel and its Engineering Design Method;
钢结构脆性断裂的力学机理及其工程设计方法研究
Effect of Grain Boundary Segregation of Residual Elements Cu-As-Sn on Intergranular Embrittlement Fracture of Low Alloying Steel
低合金钢残余元素Cu-As-Sn的晶界偏析对晶间脆性断裂的影响
Fracture Behavior Analysis of Strenthening Structure Based on Brittle Material
脆性材料基强化结构的断裂行为分析
Study on Mechanism and Criterion for Brittle/Ductile Fracture and Theory of Crack-tip Deformation;
脆性/韧性断裂机理与判据及裂尖变形理论研究
The alloys occur ductile fracture after annealing.
合金热轧态呈脆性准解理断裂,退火后转变为韧性断裂。
Brittleness of High Strength Concrete and Measures Studied of Reducing the Brittleness and Increasing the Toughness of Concrete;
高强混凝土的断裂脆性及其增韧减脆措施试验研究
Then, the fault is remade in middle and late Himalayan period, showing the characteristics of brittle thrust in many times.
充分反映该断裂具多期次活动的脆性逆冲特征。
Theory of Brittleness Number Applied in Fracture Testing of Cast Magnesium Alloy
脆性指数理论在铸镁合金断裂试验中的应用
Test Research on the Fracture Mechanics for the Britlle Materials under Compressing;
受压状态下脆性材料断裂机理的试验研究