The Strain Fatigue Behavior and Notch Sensitivity of Polymer ABS under Alternating Loading 聚合物ABS在交变载荷作用下应变疲劳性能及缺口敏感性研究
The SEM study showed that the furrow and strain fatigue effects could be the main wear mechanisms. 扫描电镜(SEM)对磨损表面分析表明,磨损机理主要是犁沟和应变疲劳两种。用压痕法测量的涂层断裂韧性顺序与涂层的耐磨性顺序一致。
Based on the testing and statistics investigation, the analysis of probabilistic character of strain fatigue life is performed. 依据试验数据,采用统计研究方法对钛合金进行了应变疲劳寿命的概率特性分析,发现了分布规律,提出了考虑置信度的可靠性寿命许用值的计算方法。
Strain-fatigue properties of pearlite and tempered sorbite in a C-Mn eutectoid rail steel have been studied by fully reversed constant total strain amplitude and plastic strain behavior in strain fatigue process has been investigated. 用全反向恒应变幅试验方法,研究了C-Mn轨钢珠光体及回火索氏体的应变疲劳行为,探讨了塑性应变在应变疲劳中的作用。
Experimental study on damage of multiaxial strain fatigue 多轴应变疲劳损伤模型实验研究
Experiment research of plastic strain fatigue crack growth in the notch 孔边裂纹塑性应变疲劳扩展试验研究
Strength increasing and induced transform by residual austenite strain are the major causes to lead to the cyclic hardening and to the strain fatigue life reduction of A B nodular cast iron. 残留奥氏体应变诱发转变和强度增加,是导致AB球铁循环硬化和应变疲劳寿命下降的重要原因。
The alteration of substructure of an austenitic stainless steel hasbeen investigated during constant strain fatigue. 本文系统地观察了奥氏体不锈钢在恒应变疲劳过程中组织结构的变化规律。
A new method for calculating amplitudes of the local stress and strain in the strain fatigue analysis of aluminum alloy members is presented in the paper. 提出了一种在铝合金构件应变疲劳分析中,计算局部应力和应变变程的新方法。
A study on the strain fatigue behavior and the evolutive law of damage in wheel steel 车轮应变疲劳性能及损伤演变规律研究
The Method to Analyse and Compute the Strain Fatigue due to Dynamical Load in Machine Design 机械设计中动载荷引起应变疲劳的分析计算方法
The fatigue theory was introduced in detail and the strain fatigue method was presented in detail especially. 比较全面的介绍了疲劳破坏分析的基本理论,详细的阐述了局部应变法、疲劳裂纹扩展法的原理和寿命预测方法。
A study of strain fatigue mechanics behaviour 4种铝合金的应变疲劳力学特性的研究
Strain fatigue parameters are determined by strain controlling low cycle fatigue experiments with MTS in the paper. Uniaxial tensile and cycle stability stress-strain curves as well as strain-life curves are obtained. 本文介绍了在MTS伺服闭环系统上用控制应变的低周疲劳试验测定该材料的应变疲劳材质参数,得到了单调拉伸与循环稳定的应力一应变曲线和应变一寿命曲线。
According to the research results, an engineering estimation method for propagation rate of strain fatigue cracks in high strain region of pressure vessel is established. 根据SCT试样应变疲劳裂纹扩展试验研究结果,在考虑了压力容器高应变区几何形状和材质变化对应变疲劳裂纹扩展参量影响后,提出了一种压力容器高应变区应变疲劳裂纹扩展速率工程估算方法。
Characteristics of Wear Resistance and Strain Fatigue in Fe-Mn-Si Shape Memory Alloy Fe-Mn-Si形状记忆合金的耐磨性及其应变疲劳特性
The point of intersection of elastic line and plastic line moves toward the low cycle life with the hardness of the spring steel raised after tempering from the strain fatigue curve. 在应变疲劳曲线上,弹性线和塑性线的交点随弹簧钢回火后硬度的升高而向低循环寿命移动;
Advances in Research of Plastic Strain Fatigue Crack Growth 塑性应变疲劳裂纹扩展研究进展
A general life model adapted to both stress fatigue and strain fatigue is deduced, through analyzing the influence function of strain distribution on life. 本文通过应变分布对寿命的影响函数分析,导出了一种适用于应力疲劳和应变疲劳的通用寿命模型。
By applying the theory of strain fatigue energy loss and the theory of intrigue JIC in elasto-plastic fracture mechanics, a preliminary investigation was made in this research to test the influence of cyclic strain on JIC& the ductile fracture toughness of steels. 应用应变疲劳能量损耗的理论和弹塑性断裂力学的J积分理论,初步探讨了钢材的应变循环加载对延性断裂韧度JIC的影响。
Study of strain fatigue in LD-10 alloy LD-10合金的应变疲劳研究
Influence of strain fatigue on J_ ( IC)& the ductile fracture toughness of steels 应变疲劳对钢材延性断裂韧度J(IC)的影响
The fatigue life analysis and estimation are done on the counter moment beam by means of partial stress/ strain fatigue analysis, which is also an important method of the finite life design. 采用局部应力应变疲劳分析的方法对斗轮驱动电机支承梁进行了疲劳寿命分析及预估,该方法也可作为有限寿命设计的重要手段。
The mechanics behaviour of the four aluminum alloys under cyclic strain control as well as the discrepancies of strain fatigue behaviour between transvers, longitudinal and high direction are analysed in the paper. 分析了4种铝合金在循环应变作用下的力学行为及材料在纵、横或高向的应变疲劳力学性能的差异。
Strain fatigue properties and fatigue dislocation structures of 2024 aluminum alloy LY-12铝合金应变疲劳性能和疲劳位错结构
Energy method of local stress and strain fatigue 局部应力应变疲劳的能量方法
A local strain fatigue analysis method and computer program 局部应变疲劳分析方法及计算程序
Through the simulation model, verification system and strain fatigue monitoring system of the real structure, the network architecture and communication protocol were verified. 通过仿真模型,验证系统和构建真实的结构应变疲劳监测系统对网络架构和通信协议进行了验证。