您要查找的是不是：
- brittle fracture criterion 脆断准则
- Crazing is the invariable precursor of brittle fracture. 出现小裂纹必然是脆性断裂的前兆。
- Finally, by using the two collinear crack model and a single crack model, a new fracture criterion for brittle materials under compression was developed based on the traditional fracture criterion. 当只有两个裂纹或一个裂纹存在时，给出了准确的应力强度因子解析解。最后依据共线双裂纹模型和单裂纹模型及传统的裂纹断裂准则，建立了脆性材料在压缩载荷作用下的断裂破毁准则。
- 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。
- 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；
- The critical fracture criterion of a cylinder with V-notches on the inner surface under explosive loading is studied. 摘要以内刻V形槽战斗部圆柱壳体为研究对象，研究了其在内爆轰载荷下的临界断裂准则。
- 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。
- 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。
- To predict the forming limit in sheet metal forming, a ductile fracture criterion is introduced into the finite element simulation. 摘要为了准确地预测板料成形极限，将韧性断裂准则引入到有限元模拟中。
- 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。
- Anastomosing brittle fracture system at Wutai Hengshan region controls the distribution of Mesocoic granites and related Au Ag and polymetal deposits. 五台-恒山地区的网状脆性断裂系统控制了中生代花岗岩类及其有关的金、银、多金属矿床的分布。
- There are such defects as furnace oxidation,beading,brittle fracture,distortion,unstable properties and so forth on commonly aged beryllium bronze. 铍青铜经常规时效处理后存在表面氧化、起泡、脆断、畸变和性能不稳定等缺陷。
- It is found that traveling block hook was brittle fracture and crack originated from original flaw per Macro fractography and micro fractography. 对游车大钩断裂事故进行了调查研究,对其断口形貌进行了宏观和微观分析,发现游车大钩为脆性断裂,断口起源于原始缺陷。
