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圆管表面斜裂纹应力强度因子和临界裂纹长度仿真分析(Simulation of Stress Intensity Factors and Critical Crack Length of Surface Oblique Crack on Round Tube)
表面斜裂纹 应力强度因子 临界裂纹长度 应变能密度
2010/12/28
针对圆管表面斜裂纹,建立基于弹性断裂理论和复变函数理论的计算模型。研究圆管表面斜裂纹发生扩展时临界状态所对应的应力强度因子和裂纹临界尺寸在各种相关因素影响下的变化规律。以I、II型复合裂纹为例,采用应变能密度理论对其进行了分析。对开裂角、裂纹所处角度及裂纹的几何尺寸等因素的影响进行仿真计算。得到裂纹所处角度对复合型裂纹两个应力强度因子影响的曲线,并对其影响的程度进行了比较。另外,对裂纹所处角度和开...
Influence of top link length of three-point hitch on performance parameters of ploughing set
fuel consumption wheel slip ploughing set tractor
2014/2/26
The target of the realized measurement was to subject the influence of top link on wheel slip and performance and economic parameters of ploughing set. To meet the objectives the set of New Holland 70...