提出了裂纹扩展机制。
对于这类小裂纹扩展机制的分析目前还比较少。
The plastic zone by the hole edge and its effect on the initiation and propagation of the small crack also were investigated.
本文从细观力学角度研究了高脆性材料亚临界裂纹扩展机制。
The subcritical crack growth mechanism in brittle materials is studied from the viewpoint of mesomechanics.
借用损伤机制描述裂纹扩展规律。
The crack propagation law is described using damage mechanism.
根据扫描断口形貌和裂纹扩展途径的金相观察，还探讨了在混合溶液中的应力腐蚀机制。
The stress corrosion mechanism in mixed solutions was studied based on the metallographic observations of scanning fracture shapes and crack extension direction.
依据断口扫描形貌和裂纹扩展途径的金相观察，探讨了在混合溶液中应力腐蚀机制。
The stress corrosion mechanism of in mixed solutions is explored based upon metallographic analysis of crack development.
解理断裂是典型的脆性断裂，解理断裂也是一个裂纹萌生和扩展的过程，其机制与位错和晶粒有关。
Cleavage fracture is a typical brittle fracture and also a process consisted of crack producing and spreading, and the mechanism is related to dislocation and crystalline grain.
穿晶裂纹源于晶内形变损伤区，其扩展机制为沿滑移面的剪切断裂。
Tranagranular cracks result from deformation damage of grain, and its propagation mechanism is shear rupture along slip plane.
本文回顾了各种金属及合金在门坎区附近的疲劳裂纹扩展的机制和特征。
This paper presents a review of the characteristics and mechanisms of fatigue crack propagation at near-threshold range in various metals and alloys.
本文回顾了各种金属及合金在门坎区附近的疲劳裂纹扩展的机制和特征。
This paper presents a review of the characteristics and mechanisms of fatigue crack propagation(FCP)at near-threshold range in various metals and alloys.
刚玉莫来石材料的断裂在室温下由裂纹扩展控制，在高温下由蠕变机制控制。
The rupture of corundum-mullite materials was controlled by crack at room temperature and creep at high temperature.
磨料冲击引起的裂纹沿涂层内粒子界面萌生、扩展并最终导致粒子剥落，是涂层主要的冲蚀磨损机制。
The successive spalling of splats from the lamellar interface of the coating caused by the impact of erosive particles is the dominant mechanism of erosion.
腐蚀环境对材料的裂纹扩展有较明显的加速作用，酸碱处理后材料的磨损机制主要是磨粒磨损和疲劳磨损的综合作用。
The corrosive environment accelerates strongly crack growth of the composites. After acid and alkali treatment, the wear mechanism is the synthetic action of abrasive wear and fatigue fracture.
根据裂纹扩展方式的变化，对氢致裂纹萌生和扩展机制进行了讨论。
According to the mode of crack propagation the mechanism of crack initiation and propagation was also discussed.
提出了拉伸超载对疲劳裂纹扩展过程影响的一般机制。
A general mechanism of the effect of tensile overload on FCP behaviour is proposed.
通过爆炸加载试验观察分析其金相组织，研究低碳钢和硅锰钢材料的裂纹生成、扩展和断裂机制。
Through observation and analysis of metal organism after explosive load experiments, fracture mechanisms of the mild steel and Si-Mn steel materias were specially studied.
通过扫描电镜、透射电镜、光学金相等手段对LY12CZ铝合金疲劳短裂纹的微观机制进行了分析研究，结果表明，材料的微观组织对短裂纹扩展行为有很大影响。
The micro-mechanism of short crack and the influence of micro-structures on short crack propagation have been investigated by OM, SEM and TEM for a LY12CZ Aluminium alloy.
通过扫描电镜、透射电镜、光学金相等手段对LY12CZ铝合金疲劳短裂纹的微观机制进行了分析研究，结果表明，材料的微观组织对短裂纹扩展行为有很大影响。
The micro-mechanism of short crack and the influence of micro-structures on short crack propagation have been investigated by OM, SEM and TEM for a LY12CZ Aluminium alloy.
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