To predict life of multiaxial low cycle fatigue more conveniently,a multiaxial low cycle fatigue damage parameter is proposed based on the crack extension characteristics and changes of the maximum shear strain and the corresponding normal strain on the maximum shear stain plane and the maximum shear strain plane is considered as the critical plane.
为了更简便地预测多轴低周疲劳寿命,通过分析裂纹扩展特点和最大剪应变面上的最大剪应变和相应的法向应变变化特点,提出以最大剪应变平面作为损伤临界平面,将最大剪应变和相应的法向应变作为基本的多轴疲劳损伤参数,建立了基于临界面法的多轴低周疲劳损伤参量。
Combined with Instron1343 fatigue test bed, the low cycle fatigue crack growth rate-test system was developed.
结合Instron1343疲劳试验机开发了低周疲劳裂纹扩展速率试验系统。
Study on fracture and intermediate temperature low cycle fatigue property of ladle shell material SM490B;
钢包材料SM490B钢断裂及中温低周疲劳性能研究
Low Cycle Fatigue Behavior of ZL101 Aluminum Alloy;
ZL101铝合金低周疲劳行为研究
Investigation of low cycle fatigue behavior of 16MnR steel at elevated temperature;
16MnR钢中温低周疲劳行为研究
The research on low cyclic fatigue behaviors was carried out at 400 ℃ for two kinds of Zr-alloys(1#, Zr-1Sn-0.
结果表明,2#合金的低周疲劳性能优于1#合金的低周疲劳性能。
Fully reversed low cyclic fatigue (LCF)tests were conducted on [0 0 1], [0 1 2],[1 1 2], [0 1 1] and [11 4] oriented single crystals of nickel-based superalloy DD3 with different cyclic strain rates at 950℃.
在 ９５０℃ｔ对［０ ０１］、［０１２］、［１１２］、［０１１］和［１１４４］晶体取向的镍基单晶超合金 ＤＤ３试样进行了对称循环低周疲劳（ＩＣＦ）试验。
Termal infrared imagery was u3ed to measure the surface temperature field of planar 40CrNiMoA steel specimens in low cyclic fatigue with thermal analysis provided.
通过红外热象仪对４０ＣｒＮｉＭｏＡ板试样在低周疲劳过程中的表面温度场测量及热分析计算；得到了试样表面热耗率的分布及其变化规律。
Low-cycle Fatigue Behavior of Die Cast Mg-7Al-0.5Y Magnesium Alloy;
压铸态Mg-7Al-0.5Y合金的低周疲劳行为
The low-cycle fatigue tests of welded I-section bracing members;
焊接工字形截面钢支撑低周疲劳性能试验研究
Prediction software of multiaxial low-cycle fatigue life;
多轴低周疲劳寿命预测软件
Study on Damage Mechanism of LCF of Pure Titanium BT1-0;
纯钛BT1-0低周疲劳损伤机理的研究
LCF Properties Compare of Two Kind of PD3 Rail-steel;
两种PD3钢轨钢的低周疲劳比较
LCF Strength Calculating and Analyzing of Turbocharger Compressor Wheel;
增压器压气机叶轮低周疲劳强度有限元计算分析
The temperature response and the micrograph change of pure copper under low cycle fatigue(LCF) were studied by use of infrared thermography and optical microscopy,and the fracture morphology was analyzed with Scan Electron Microscopy(SEM).
为了研究纯铜在低周疲劳中的温度响应与微观形貌,借助于红外热像仪及远距离高倍显微镜同步监测工业纯铜的表面疲劳变化,同时运用扫描电子显微镜(SEM)对试样断口进行微观分析。
Based on three-parameter exponential function of high cycle fatigue(HCF) under stress controlled to acquire stress-life curve,a new method for determining stress-life curve with HCF data used in a long-life region and low cycle fatigue(LCF) data in a short-life region was developed.
基于三参数幂函数法处理高周疲劳S-N曲线,提出了一种在短寿命区采用低周疲劳试验数据、长寿命区采用高周疲劳试验数据联合确定材料高周疲劳S-N曲线的方法。
The method of preventing of the electric system in condition of low cycle and the disserving of it were introduced for electric system of Jincheng coal industry group.
本文结合晋城煤业集团公司电力系统 ,分析了电力系统在低周波下运行的危害、防止方法 ,针对安装使用ZPJH装置在晋煤集团电力系统的安全运行中存在的问题 ,提出了解决对