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- The fractal dimensions of brittle fracture of rock are related to test conditions such as confining pressure and strain rate, and this reflects the difference of brittle fractured mechanism of rock. 在不同的围压和应变率下,岩石脆性破裂的分维值各不相同,体现了岩石脆性断裂机制的差异性。
- Study on the Brittle Fracture Mechanism Of 9SiCr Nail Die by M-B Dual Phase Treatment M-B复相处理9SiCr制钉模脆断机理的研究
- brittle fracture mechanism 脆性断裂机理
- Crazing is the invariable precursor of brittle fracture. 出现小裂纹必然是脆性断裂的前兆。
- In the thesis, the fragmentation prediction is based on the mechanism of brittle fracture of rock, on which a fractal model of fragment evolution is proposed. 本文根据岩石破裂过程分形脆性断裂机理建立块度分形演化模型,并将其应用于节理岩体块度预测。
- The cause of brittle fracture on power hacksaw blades-blank were analyzed. 检验分析了机用锯条坯脆断的原因。
- High manganese steels undergo a ductile to brittle transition at low temperature, which is accompanied by a change in the fracture mechanism from dimple fracture to intergranular fracture. 高锰奥氏体钢随温度降低其断裂机制由韧窝状断裂转变到晶界断裂。
- Analysis on the brittleness fracture mechanism of high temperature bolts for the generation unit 发电机组高温螺栓脆性断裂机理分析
- Choice of steel types for the metallic construction and boiler making for brittle fracture hazard prevention. 防止脆性断裂危险用金属结构钢和锅炉制造用钢的类型选择。
- The brittle fracture of steel columns and the damage to column bases were found in Kobe Earthquake. 在阪神地震中还发生了钢柱的脆断和柱脚的破坏。
- The fractography showed brittle fracture in high SiC layer and dimple fracture in the matrix of low SiC layer. 第5章研究了多层梯度复合材料的疲劳裂纹扩展行为。 研究表明,当疲劳裂纹从低SIC层向高SIC层扩展时,在相邻两层过渡区会发生裂纹扩展延滞。
- 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、。
- The bracket of as-cast ferritic nodular iron breaks due to brittle fracture when it is assembled. 摘要铁素体球铁铸件支架在装配时发生脆性断裂失效。
- Hoststructures are usually ductile shearzones or schistosity zones in brittle fracture zones. 金矿床为少硫化物石英脉型。
- And each other of main cracks and microcracks coalesces through ductile or brittle fracture of the metal ligament. 微裂纹以脆性方式导致界面分离,或以其裂尖区域位错发射的延性方式长大;
- It was concluded that brittle fracture of the valve body was the result of poor casting quality. 结果表明,该阀体爆裂属脆性断裂,爆裂系截止阀材质、组织及铸造质量差所致。
- The fracture is brittle fracture, and the reason is that material of forming dies takes place the temper br... 引起脆性断裂的原因是成型模产生了回火脆性。
- Fracture mechanics for plates and shells II. 板壳断裂力学2。
- The fracture mechanism of 2024 aluminium alloy without CeO2 is quasi-cleavage and dimples,the main fractographic appearances are brittle and toughness,while the fracture mode of alloy is ductile fracture with some addition of CeO2. 当未添加CeO2时,2024铝合金断口表面呈准解理和韧窝状态,表现为脆性与韧性结合的混合断裂特征,而添加一定量的CeO时,合金呈现出塑性断裂特征。
- Where required, to examine deflections, stiffness requirements, and any special material and design provisions to obviate brittle fracture under adverse conditions. 必要时验算挠度、刚度要求、以及任一特殊材料和设计规定,以预防不利条件下的脆断。