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- fracture failure criterion 断裂失效准则
- The failure criterion of asphalt concrete was not in good agree with the Mohr-Coulomb criterion. 另外,沥青混凝土的破坏准则也并非符合莫尔-库仑破坏准则。
- The fracture failure reasons of the hand-gear were analyzed by means of stress situation and fractography. 通过研究断裂时的应力状况及宏观断口,对手动小齿轮断裂失效原因进行了分析。
- According to Mohr-Coulomb failure criterion, the axial stress at failure in rock-soil triaxial tests is in linear relationship with the lateral stress. 根据莫尔-库仑破坏准则,岩土三轴试验的轴向破坏应力与围压之间呈线性关系。
- A new failure criterion and elastic\|plastic constitutive relation for concrete under biaxial stresses is discussed in this paper. 讨论了混凝土在双向应力作用下的破坏准则和弹塑性本构关系。
- Fracture failure of the intermediate axis in the passenger car gearbox was analyzed by SEM and traditional examination method. 采用扫描电镜和常规检验方法,对客车变速器中间轴的断裂原因进行了分析。
- An extended Mohr-Coulomb failure criterion is used to allow for shear strength variations as a result of changes in matric suction. 二是研究雨水入渗引发滑坡的物理过程并建立定量的分析模型,然后利用这种分析模型进行参数研究。
- The fracture failure would occur in nodular iron crankshafts due to the over-shallow and non-uniform thickness of nitriding layer. 球铁曲轴常常由于渗氮层薄、质量不稳定而引起断裂失效,本课题研究了球铁曲轴加氧渗氮工艺。
- It is concluded that hydrogen brittlement of the disloation-tooth circletproduced during zinc coating is the reason of fracture failure. 通过金相显微镜观察、扫描电镜分析、能谱分析和含氢量的测定,得出错齿垫圈断裂失效是由于在镀锌过程中产生氢脆的结论。
- The adopted failure criterion was a composite Mohr-Coulomb criterion with tension cut-off and the post-peak constitutive relation of rock was linear strain-softening. 计算中采用了莫尔-库仑与拉破坏复合的破坏准则,峰后岩石本构关系为线性应变软化。
- First, the changing laws of cyclic strength, cyclic failure criterion and cyclic accumulate deformation are studied under different testing stress states. 主要的研究工作有以下几个方面:首先在不同试验应力状态下,研究饱和软粘土循环强度、循环破坏准则以及循环累积变形的变化规律。
- The study of premature fracture failure of these shafts was made by means of SEM inspection, microstructure examination and chemical composition analysis. 采用金相检验、扫描电镜和化学成分分析等手段,对断裂变速箱二轴进行了检验分析。
- The failure criterion is a composite Mohr-Coulomb criterion with tension cut-off.Beyond the peak stress, the linear strain-softening constitutive relation is adopted. 峰值强度后的本构模型取为莫尔库仑剪破坏与拉破坏复合的应变软化模型。
- When LVL beams suffer the flexural failure, it has three kinds of primary failure modes, including whole fracture failure, cracking failure and mixed failure. 当LVL梁受弯曲破坏时,其主要破坏形式为整体断裂破坏、开裂破坏以及混合破坏等3种;
- The failure criterion of original procedures in ADINA is modified by comparing the computation of a simple model to verify the feasibility of the user-defined materials in ADINA. 摘要通过一简单模型的计算比较,更改了ADINA原程序中的屈服凖则,验证了ADINA用户自定义材料的可行性。
- The elasto-plastic dynamic analysis methods, theoretical models of structures and failure criterion of reinforced concrete structures under earthquake are reviewed. 摘要综述结构弹塑性动力响应分析的方法、理论模型,以及地震作用下钢筋混凝土结构破坏准则。
- It is also shown that under the creep limit failure criterion, the creep internal stress method has the advantage of less test time in comparison with the isothermal ... 而以蠕变极限为失效准则的蠕变内应力法与常规的以蠕变试验为基础的等温外推法相比,还具有试验时间短的优点。
- Crack growth rate is an important parameter for engineering fracture failure estimation,and fractographic retroestimation is one of practical methods for measuring crack growth rate. 裂纹扩展速率是工程断裂失效预测分析的基础,采用断口定量测量裂纹扩展速率是常用的实用方法之一。
- Compound method of the stratitied sampling-Latin hypercube sampling is proposed to calculate fracture failure probability, and compared with the Monte Carlo method with direct sampling. 提出用分层抽样-拉丁抽样复合法计算接管的断裂失效概率,并与直接抽样的蒙特卡洛模拟法进行了比较。
- The reason of fracture failure of the zinc coating dislo-cation-tooth circlet was analyzed in detail by means of metallographicmicroscope, SEM, energy spectrum and analyzing the hydrogen content. 本文较详尽地介绍和分析了镀锌错齿垫圈断裂失效的原因。